From ce6e97fa0b24e69582615048dbbac17a55afe8ac Mon Sep 17 00:00:00 2001
From: DizzyEggg <jajkodizzy@wp.pl>
Date: Sat, 2 Dec 2017 21:44:50 +0100
Subject: [PATCH] sprite data fields to array

---
 src/battle_2.c                            | 126 +++---
 src/battle_controller_link_opponent.c     |  38 +-
 src/battle_controller_link_partner.c      |  42 +-
 src/battle_controller_opponent.c          |  40 +-
 src/battle_controller_player.c            |  46 +--
 src/battle_controller_player_partner.c    |  44 +-
 src/battle_controller_recorded_opponent.c |  36 +-
 src/battle_controller_recorded_player.c   |  44 +-
 src/battle_controller_safari.c            |   2 +-
 src/battle_controller_wally.c             |  32 +-
 src/battle_gfx_sfx_util.c                 |  10 +-
 src/battle_interface.c                    | 144 +++----
 src/battle_script_commands.c              |   4 +-
 src/berry_blender.c                       | 110 ++---
 src/decoration.c                          |  68 ++--
 src/egg_hatch.c                           |  78 ++--
 src/evolution_graphics.c                  |  80 ++--
 src/field_map_obj.c                       | 468 +++++++++++-----------
 src/hall_of_fame.c                        |  18 +-
 src/pokemon_summary_screen.c              |   4 +-
 src/region_map.c                          |  38 +-
 src/reshow_battle_screen.c                |  12 +-
 src/sprite.c                              |  17 +-
 src/starter_choose.c                      |  24 +-
 24 files changed, 759 insertions(+), 766 deletions(-)

diff --git a/src/battle_2.c b/src/battle_2.c
index eead4d7a9..8905a0ec7 100644
--- a/src/battle_2.c
+++ b/src/battle_2.c
@@ -1620,7 +1620,7 @@ void CB2_QuitRecordedBattle(void)
 
 void sub_8038528(struct Sprite* sprite)
 {
-    sprite->data0 = 0;
+    sprite->data[0] = 0;
     sprite->callback = sub_8038538;
 }
 
@@ -1628,42 +1628,42 @@ static void sub_8038538(struct Sprite *sprite)
 {
     u16 *arr = (u16*)(gDecompressionBuffer);
 
-    switch (sprite->data0)
+    switch (sprite->data[0])
     {
     case 0:
-        sprite->data0++;
-        sprite->data1 = 0;
-        sprite->data2 = 0x281;
-        sprite->data3 = 0;
-        sprite->data4 = 1;
+        sprite->data[0]++;
+        sprite->data[1] = 0;
+        sprite->data[2] = 0x281;
+        sprite->data[3] = 0;
+        sprite->data[4] = 1;
         // fall through
     case 1:
-        sprite->data4--;
-        if (sprite->data4 == 0)
+        sprite->data[4]--;
+        if (sprite->data[4] == 0)
         {
             s32 i;
             s32 r2;
             s32 r0;
 
-            sprite->data4 = 2;
-            r2 = sprite->data1 + sprite->data3 * 32;
-            r0 = sprite->data2 - sprite->data3 * 32;
+            sprite->data[4] = 2;
+            r2 = sprite->data[1] + sprite->data[3] * 32;
+            r0 = sprite->data[2] - sprite->data[3] * 32;
             for (i = 0; i < 29; i += 2)
             {
                 arr[r2 + i] = 0x3D;
                 arr[r0 + i] = 0x3D;
             }
-            sprite->data3++;
-            if (sprite->data3 == 21)
+            sprite->data[3]++;
+            if (sprite->data[3] == 21)
             {
-                sprite->data0++;
-                sprite->data1 = 32;
+                sprite->data[0]++;
+                sprite->data[1] = 32;
             }
         }
         break;
     case 2:
-        sprite->data1--;
-        if (sprite->data1 == 20)
+        sprite->data[1]--;
+        if (sprite->data[1] == 20)
             SetMainCallback2(CB2_InitBattle);
         break;
     }
@@ -1824,12 +1824,12 @@ void nullsub_17(void)
 
 static void sub_8038B04(struct Sprite *sprite)
 {
-    if (sprite->data0 != 0)
-        sprite->pos1.x = sprite->data1 + ((sprite->data2 & 0xFF00) >> 8);
+    if (sprite->data[0] != 0)
+        sprite->pos1.x = sprite->data[1] + ((sprite->data[2] & 0xFF00) >> 8);
     else
-        sprite->pos1.x = sprite->data1 - ((sprite->data2 & 0xFF00) >> 8);
+        sprite->pos1.x = sprite->data[1] - ((sprite->data[2] & 0xFF00) >> 8);
 
-    sprite->data2 += 0x180;
+    sprite->data[2] += 0x180;
 
     if (sprite->affineAnimEnded)
     {
@@ -2382,8 +2382,8 @@ u32 sub_80397C4(u32 setId, u32 tableId)
     return gUnknown_0831ABA0[setId][tableId].width * 8;
 }
 
-#define tBank               data0
-#define tSpeciesId          data2
+#define tBank               data[0]
+#define tSpeciesId          data[2]
 
 void oac_poke_opponent(struct Sprite *sprite)
 {
@@ -2431,20 +2431,20 @@ void SpriteCallbackDummy_2(struct Sprite *sprite)
 
 static void sub_80398BC(struct Sprite *sprite) // unused?
 {
-    sprite->data3 = 6;
-    sprite->data4 = 1;
+    sprite->data[3] = 6;
+    sprite->data[4] = 1;
     sprite->callback = sub_80398D0;
 }
 
 static void sub_80398D0(struct Sprite *sprite)
 {
-    sprite->data4--;
-    if (sprite->data4 == 0)
+    sprite->data[4]--;
+    if (sprite->data[4] == 0)
     {
-        sprite->data4 = 8;
+        sprite->data[4] = 8;
         sprite->invisible ^= 1;
-        sprite->data3--;
-        if (sprite->data3 == 0)
+        sprite->data[3]--;
+        if (sprite->data[3] == 0)
         {
             sprite->invisible = FALSE;
             sprite->callback = SpriteCallbackDummy_2;
@@ -2495,8 +2495,8 @@ void sub_8039934(struct Sprite *sprite)
         yOffset = gMonFrontPicCoords[species].y_offset;
     }
 
-    sprite->data3 = 8 - yOffset / 8;
-    sprite->data4 = 1;
+    sprite->data[3] = 8 - yOffset / 8;
+    sprite->data[4] = 1;
     sprite->callback = sub_8039A48;
 }
 
@@ -2504,20 +2504,20 @@ static void sub_8039A48(struct Sprite *sprite)
 {
     s32 i;
 
-    sprite->data4--;
-    if (sprite->data4 == 0)
+    sprite->data[4]--;
+    if (sprite->data[4] == 0)
     {
-        sprite->data4 = 2;
+        sprite->data[4] = 2;
         sprite->pos2.y += 8;
-        sprite->data3--;
-        if (sprite->data3 < 0)
+        sprite->data[3]--;
+        if (sprite->data[3] < 0)
         {
             FreeSpriteOamMatrix(sprite);
             DestroySprite(sprite);
         }
         else
         {
-            u8 *dst = (u8 *)gMonSpritesGfxPtr->sprites[GetBankIdentity(sprite->tBank)] + (gBattleMonForms[sprite->tBank] << 11) + (sprite->data3 << 8);
+            u8 *dst = (u8 *)gMonSpritesGfxPtr->sprites[GetBankIdentity(sprite->tBank)] + (gBattleMonForms[sprite->tBank] << 11) + (sprite->data[3] << 8);
 
             for (i = 0; i < 0x100; i++)
                 *(dst++) = 0;
@@ -2529,25 +2529,25 @@ static void sub_8039A48(struct Sprite *sprite)
 
 void sub_8039AD8(struct Sprite *sprite)
 {
-    sprite->data3 = 8;
-    sprite->data4 = sprite->invisible;
+    sprite->data[3] = 8;
+    sprite->data[4] = sprite->invisible;
     sprite->callback = sub_8039AF4;
 }
 
 static void sub_8039AF4(struct Sprite *sprite)
 {
-    sprite->data3--;
-    if (sprite->data3 == 0)
+    sprite->data[3]--;
+    if (sprite->data[3] == 0)
     {
         sprite->invisible ^= 1;
-        sprite->data3 = 8;
+        sprite->data[3] = 8;
     }
 }
 
 void sub_8039B2C(struct Sprite *sprite)
 {
-    sprite->invisible = sprite->data4;
-    sprite->data4 = FALSE;
+    sprite->invisible = sprite->data[4];
+    sprite->data[4] = FALSE;
     sprite->callback = SpriteCallbackDummy_2;
 }
 
@@ -2577,7 +2577,7 @@ static void oac_poke_ally_(struct Sprite *sprite)
         if (sprite->pos2.x == 0)
         {
             sprite->callback = SpriteCallbackDummy_3;
-            sprite->data1 = 0;
+            sprite->data[1] = 0;
         }
     }
 }
@@ -2595,8 +2595,8 @@ void sub_8039C00(struct Sprite *sprite)
 {
     if (!(gUnknown_020243FC & 1))
     {
-        sprite->pos2.x += sprite->data1;
-        sprite->pos2.y += sprite->data2;
+        sprite->pos2.x += sprite->data[1];
+        sprite->pos2.y += sprite->data[2];
     }
 }
 
@@ -2622,19 +2622,19 @@ void dp11b_obj_instanciate(u8 bank, u8 b, s8 c, s8 d)
         spriteId2 = gHealthBoxesIds[bank];
         gBattleSpritesDataPtr->healthBoxesData[bank].field_2 = bounceHealthBoxSpriteId;
         gBattleSpritesDataPtr->healthBoxesData[bank].flag_x2 = 1;
-        gSprites[bounceHealthBoxSpriteId].data0 = 0x80;
+        gSprites[bounceHealthBoxSpriteId].data[0] = 0x80;
     }
     else
     {
         spriteId2 = gBankSpriteIds[bank];
         gBattleSpritesDataPtr->healthBoxesData[bank].field_3 = bounceHealthBoxSpriteId;
         gBattleSpritesDataPtr->healthBoxesData[bank].flag_x4 = 1;
-        gSprites[bounceHealthBoxSpriteId].data0 = 0xC0;
+        gSprites[bounceHealthBoxSpriteId].data[0] = 0xC0;
     }
-    gSprites[bounceHealthBoxSpriteId].data1 = c;
-    gSprites[bounceHealthBoxSpriteId].data2 = d;
-    gSprites[bounceHealthBoxSpriteId].data3 = spriteId2;
-    gSprites[bounceHealthBoxSpriteId].data4 = b;
+    gSprites[bounceHealthBoxSpriteId].data[1] = c;
+    gSprites[bounceHealthBoxSpriteId].data[2] = d;
+    gSprites[bounceHealthBoxSpriteId].data[3] = spriteId2;
+    gSprites[bounceHealthBoxSpriteId].data[4] = b;
     gSprites[spriteId2].pos2.x = 0;
     gSprites[spriteId2].pos2.y = 0;
 }
@@ -2648,7 +2648,7 @@ void dp11b_obj_free(u8 bank, bool8 b)
         if (!gBattleSpritesDataPtr->healthBoxesData[bank].flag_x2)
             return;
 
-        r4 = gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].field_2].data3;
+        r4 = gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].field_2].data[3];
         DestroySprite(&gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].field_2]);
         gBattleSpritesDataPtr->healthBoxesData[bank].flag_x2 = 0;
     }
@@ -2657,7 +2657,7 @@ void dp11b_obj_free(u8 bank, bool8 b)
         if (!gBattleSpritesDataPtr->healthBoxesData[bank].flag_x4)
             return;
 
-        r4 = gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].field_3].data3;
+        r4 = gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].field_3].data[3];
         DestroySprite(&gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].field_3]);
         gBattleSpritesDataPtr->healthBoxesData[bank].flag_x4 = 0;
     }
@@ -2667,16 +2667,16 @@ void dp11b_obj_free(u8 bank, bool8 b)
 
 static void SpriteCB_HealthBoxBounce(struct Sprite *sprite)
 {
-    u8 spriteId = sprite->data3;
+    u8 spriteId = sprite->data[3];
     s32 var;
 
-    if (sprite->data4 == 1)
-        var = sprite->data0;
+    if (sprite->data[4] == 1)
+        var = sprite->data[0];
     else
-        var = sprite->data0;
+        var = sprite->data[0];
 
-    gSprites[spriteId].pos2.y = Sin(var, sprite->data2) + sprite->data2;
-    sprite->data0 = (sprite->data0 + sprite->data1) & 0xFF;
+    gSprites[spriteId].pos2.y = Sin(var, sprite->data[2]) + sprite->data[2];
+    sprite->data[0] = (sprite->data[0] + sprite->data[1]) & 0xFF;
 }
 
 void sub_8039E44(struct Sprite *sprite)
diff --git a/src/battle_controller_link_opponent.c b/src/battle_controller_link_opponent.c
index e691af6a1..4795d2bd4 100644
--- a/src/battle_controller_link_opponent.c
+++ b/src/battle_controller_link_opponent.c
@@ -465,18 +465,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         LinkOpponentBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1168,7 +1168,7 @@ static void LinkOpponentHandleLoadMonSprite(void)
                                                sub_80A82E4(gActiveBank));
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], gBattleMonForms[gActiveBank]);
 
@@ -1201,11 +1201,11 @@ static void sub_8066494(u8 bank, bool8 dontClearSubstituteBit)
       GetBankSpriteDefault_Y(bank),
       sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
@@ -1213,7 +1213,7 @@ static void sub_8066494(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_OPPONENT_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_OPPONENT_SENDOUT);
 }
 
 static void LinkOpponentHandleReturnMonToBall(void)
@@ -1334,7 +1334,7 @@ static void LinkOpponentHandleDrawTrainerPic(void)
                                                sub_80A82E4(gActiveBank));
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 2;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
     gSprites[gBankSpriteIds[gActiveBank]].oam.affineParam = trainerPicId;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
@@ -1357,7 +1357,7 @@ static void LinkOpponentHandleTrainerSlide(void)
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 96;
     gSprites[gBankSpriteIds[gActiveBank]].pos1.x += 32;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
     gSprites[gBankSpriteIds[gActiveBank]].oam.affineParam = trainerPicId;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
@@ -1369,9 +1369,9 @@ static void LinkOpponentHandleTrainerSlide(void)
 static void LinkOpponentHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = 280;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = 280;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     gBattleBankFunc[gActiveBank] = sub_8064470;
@@ -1670,7 +1670,7 @@ static void LinkOpponentHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1731,9 +1731,9 @@ static void LinkOpponentHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = 280;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = 280;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_80676FC);
diff --git a/src/battle_controller_link_partner.c b/src/battle_controller_link_partner.c
index 02159970e..fde364a55 100644
--- a/src/battle_controller_link_partner.c
+++ b/src/battle_controller_link_partner.c
@@ -352,18 +352,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         LinkPartnerBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1053,7 +1053,7 @@ static void LinkPartnerHandleLoadMonSprite(void)
                                                GetBankSpriteDefault_Y(gActiveBank),
                                                sub_80A82E4(gActiveBank));
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], gBattleMonForms[gActiveBank]);
     gBattleBankFunc[gActiveBank] = sub_814B290;
@@ -1084,11 +1084,11 @@ static void sub_814CC98(u8 bank, bool8 dontClearSubstituteBit)
       GetBankSpriteDefault_Y(bank),
       sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
@@ -1096,7 +1096,7 @@ static void sub_814CC98(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
 }
 
 static void LinkPartnerHandleReturnMonToBall(void)
@@ -1174,7 +1174,7 @@ static void LinkPartnerHandleDrawTrainerPic(void)
 
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
 
     gBattleBankFunc[gActiveBank] = CompleteOnBankSpriteCallbackDummy;
@@ -1188,9 +1188,9 @@ static void LinkPartnerHandleTrainerSlide(void)
 static void LinkPartnerHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     gBattleBankFunc[gActiveBank] = sub_814AF54;
@@ -1211,8 +1211,8 @@ static void LinkPartnerHandleFaintAnimation(void)
             gBattleSpritesDataPtr->healthBoxesData[gActiveBank].animationState = 0;
             HandleLowHpMusicChange(&gPlayerParty[gBattlePartyID[gActiveBank]], gActiveBank);
             PlaySE12WithPanning(SE_POKE_DEAD, PAN_SIDE_PLAYER);
-            gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
-            gSprites[gBankSpriteIds[gActiveBank]].data2 = 5;
+            gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
+            gSprites[gBankSpriteIds[gActiveBank]].data[2] = 5;
             gSprites[gBankSpriteIds[gActiveBank]].callback = sub_8039C00;
             gBattleBankFunc[gActiveBank] = sub_814B340;
         }
@@ -1492,7 +1492,7 @@ static void LinkPartnerHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1554,11 +1554,11 @@ static void LinkPartnerHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 50;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 50;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
-    gSprites[gBankSpriteIds[gActiveBank]].data5 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[5] = gActiveBank;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_805CC00);
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], 1);
diff --git a/src/battle_controller_opponent.c b/src/battle_controller_opponent.c
index 7338fdb00..dc23db8bc 100644
--- a/src/battle_controller_opponent.c
+++ b/src/battle_controller_opponent.c
@@ -453,18 +453,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         OpponentBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1156,8 +1156,8 @@ static void OpponentHandleLoadMonSprite(void)
                                                sub_80A82E4(gActiveBank));
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = gActiveBank;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = species;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = species;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], gBattleMonForms[gActiveBank]);
 
@@ -1190,11 +1190,11 @@ static void sub_80613DC(u8 bank, bool8 dontClearSubstituteBit)
                                         GetBankSpriteDefault_Y(bank),
                                         sub_80A82E4(bank));
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
@@ -1203,7 +1203,7 @@ static void sub_80613DC(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_OPPONENT_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_OPPONENT_SENDOUT);
 }
 
 static void OpponentHandleReturnMonToBall(void)
@@ -1321,7 +1321,7 @@ static void OpponentHandleDrawTrainerPic(void)
                                                sub_80A82E4(gActiveBank));
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 2;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
     gSprites[gBankSpriteIds[gActiveBank]].oam.affineParam = trainerPicId;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
@@ -1391,7 +1391,7 @@ static void OpponentHandleTrainerSlide(void)
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 96;
     gSprites[gBankSpriteIds[gActiveBank]].pos1.x += 32;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
     gSprites[gBankSpriteIds[gActiveBank]].oam.affineParam = trainerPicId;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
@@ -1402,9 +1402,9 @@ static void OpponentHandleTrainerSlide(void)
 static void OpponentHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = 280;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = 280;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     gBattleBankFunc[gActiveBank] = sub_805F240;
@@ -1815,7 +1815,7 @@ static void OpponentHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1876,9 +1876,9 @@ static void OpponentHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = 280;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = 280;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_806280C);
diff --git a/src/battle_controller_player.c b/src/battle_controller_player.c
index 7c97c83bb..137b33274 100644
--- a/src/battle_controller_player.c
+++ b/src/battle_controller_player.c
@@ -1431,18 +1431,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         PlayerBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -2241,11 +2241,11 @@ static void sub_805B258(u8 bank, bool8 dontClearSubstituteBit)
       GetBankSpriteDefault_Y(bank),
       sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
@@ -2253,7 +2253,7 @@ static void sub_805B258(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
 }
 
 static void PlayerHandleReturnMonToBall(void)
@@ -2358,7 +2358,7 @@ static void PlayerHandleDrawTrainerPic(void)
         gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
         gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
         gSprites[gBankSpriteIds[gActiveBank]].pos2.y = 48;
-        gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+        gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
         gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
         gSprites[gBankSpriteIds[gActiveBank]].oam.affineMode = 0;
         gSprites[gBankSpriteIds[gActiveBank]].hFlip = 1;
@@ -2372,7 +2372,7 @@ static void PlayerHandleDrawTrainerPic(void)
 
         gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
         gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
-        gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+        gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
         gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
     }
 
@@ -2411,7 +2411,7 @@ static void PlayerHandleTrainerSlide(void)
 
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -96;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 2;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
 
     gBattleBankFunc[gActiveBank] = CompleteOnBankSpriteCallbackDummy2;
@@ -2420,9 +2420,9 @@ static void PlayerHandleTrainerSlide(void)
 static void PlayerHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 50;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 50;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], 1);
@@ -2444,8 +2444,8 @@ static void PlayerHandleFaintAnimation(void)
             gBattleSpritesDataPtr->healthBoxesData[gActiveBank].animationState = 0;
             HandleLowHpMusicChange(&gPlayerParty[gBattlePartyID[gActiveBank]], gActiveBank);
             PlaySE12WithPanning(SE_POKE_DEAD, PAN_SIDE_PLAYER);
-            gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
-            gSprites[gBankSpriteIds[gActiveBank]].data2 = 5;
+            gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
+            gSprites[gBankSpriteIds[gActiveBank]].data[2] = 5;
             gSprites[gBankSpriteIds[gActiveBank]].callback = sub_8039C00;
             gBattleBankFunc[gActiveBank] = sub_80596A8;
         }
@@ -2902,7 +2902,7 @@ static void PlayerHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -2963,11 +2963,11 @@ static void PlayerHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 50;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 50;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
-    gSprites[gBankSpriteIds[gActiveBank]].data5 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[5] = gActiveBank;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_805CC00);
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], 1);
@@ -2988,7 +2988,7 @@ static void PlayerHandleIntroTrainerBallThrow(void)
 
 void sub_805CC00(struct Sprite *sprite)
 {
-    u8 bank = sprite->data5;
+    u8 bank = sprite->data[5];
 
     FreeSpriteOamMatrix(sprite);
     FreeSpritePaletteByTag(GetSpritePaletteTagByPaletteNum(sprite->oam.paletteNum));
diff --git a/src/battle_controller_player_partner.c b/src/battle_controller_player_partner.c
index c05c3dcf8..3ce12fac7 100644
--- a/src/battle_controller_player_partner.c
+++ b/src/battle_controller_player_partner.c
@@ -539,18 +539,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         PlayerPartnerBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1240,7 +1240,7 @@ static void PlayerPartnerHandleLoadMonSprite(void)
                                                GetBankSpriteDefault_Y(gActiveBank),
                                                sub_80A82E4(gActiveBank));
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], gBattleMonForms[gActiveBank]);
     gBattleBankFunc[gActiveBank] = sub_81BB1D4;
@@ -1271,11 +1271,11 @@ static void sub_81BD0E4(u8 bank, bool8 dontClearSubstituteBit)
       GetBankSpriteDefault_Y(bank),
       sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
@@ -1283,7 +1283,7 @@ static void sub_81BD0E4(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
 }
 
 static void PlayerPartnerHandleReturnMonToBall(void)
@@ -1353,7 +1353,7 @@ static void PlayerPartnerHandleDrawTrainerPic(void)
 
         gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
         gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
-        gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+        gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
         gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
     }
     else // otherwise use front sprite
@@ -1365,7 +1365,7 @@ static void PlayerPartnerHandleDrawTrainerPic(void)
         gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
         gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
         gSprites[gBankSpriteIds[gActiveBank]].pos2.y = 48;
-        gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+        gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
         gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
         gSprites[gBankSpriteIds[gActiveBank]].oam.affineMode = 0;
         gSprites[gBankSpriteIds[gActiveBank]].hFlip = 1;
@@ -1382,9 +1382,9 @@ static void PlayerPartnerHandleTrainerSlide(void)
 static void PlayerPartnerHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     gBattleBankFunc[gActiveBank] = sub_81BAE98;
@@ -1405,8 +1405,8 @@ static void PlayerPartnerHandleFaintAnimation(void)
             gBattleSpritesDataPtr->healthBoxesData[gActiveBank].animationState = 0;
             HandleLowHpMusicChange(&gPlayerParty[gBattlePartyID[gActiveBank]], gActiveBank);
             PlaySE12WithPanning(SE_POKE_DEAD, PAN_SIDE_PLAYER);
-            gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
-            gSprites[gBankSpriteIds[gActiveBank]].data2 = 5;
+            gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
+            gSprites[gBankSpriteIds[gActiveBank]].data[2] = 5;
             gSprites[gBankSpriteIds[gActiveBank]].callback = sub_8039C00;
             gBattleBankFunc[gActiveBank] = sub_81BB78C;
         }
@@ -1745,7 +1745,7 @@ static void PlayerPartnerHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1806,11 +1806,11 @@ static void PlayerPartnerHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 50;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 50;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
-    gSprites[gBankSpriteIds[gActiveBank]].data5 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[5] = gActiveBank;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_805CC00);
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], 1);
diff --git a/src/battle_controller_recorded_opponent.c b/src/battle_controller_recorded_opponent.c
index d400d74b6..a57b2c576 100644
--- a/src/battle_controller_recorded_opponent.c
+++ b/src/battle_controller_recorded_opponent.c
@@ -449,18 +449,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         RecordedOpponentBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1155,7 +1155,7 @@ static void RecordedOpponentHandleLoadMonSprite(void)
 
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], gBattleMonForms[gActiveBank]);
 
@@ -1187,11 +1187,11 @@ static void sub_81885D8(u8 bank, bool8 dontClearSubstituteBit)
                                         GetBankSpriteDefault_Y(bank),
                                         sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
@@ -1199,7 +1199,7 @@ static void sub_81885D8(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_OPPONENT_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_OPPONENT_SENDOUT);
 }
 
 static void RecordedOpponentHandleReturnMonToBall(void)
@@ -1285,7 +1285,7 @@ static void RecordedOpponentHandleDrawTrainerPic(void)
                                                sub_80A82E4(gActiveBank));
 
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 2;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
     gSprites[gBankSpriteIds[gActiveBank]].oam.affineParam = trainerPicId;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
@@ -1301,9 +1301,9 @@ static void RecordedOpponentHandleTrainerSlide(void)
 static void RecordedOpponentHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = 280;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = 280;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     gBattleBankFunc[gActiveBank] = sub_81865C8;
@@ -1614,7 +1614,7 @@ static void RecordedOpponentHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1675,9 +1675,9 @@ static void RecordedOpponentHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = 280;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = 280;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_818962C);
diff --git a/src/battle_controller_recorded_player.c b/src/battle_controller_recorded_player.c
index 5c25ddf88..86558d25c 100644
--- a/src/battle_controller_recorded_player.c
+++ b/src/battle_controller_recorded_player.c
@@ -437,18 +437,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         RecordedPlayerBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1138,7 +1138,7 @@ static void RecordedPlayerHandleLoadMonSprite(void)
                                                GetBankSpriteDefault_Y(gActiveBank),
                                                sub_80A82E4(gActiveBank));
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], gBattleMonForms[gActiveBank]);
     gBattleBankFunc[gActiveBank] = sub_818A064;
@@ -1169,11 +1169,11 @@ static void sub_818BA6C(u8 bank, bool8 dontClearSubstituteBit)
       GetBankSpriteDefault_Y(bank),
       sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
@@ -1181,7 +1181,7 @@ static void sub_818BA6C(u8 bank, bool8 dontClearSubstituteBit)
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
 
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
 }
 
 static void RecordedPlayerHandleReturnMonToBall(void)
@@ -1272,7 +1272,7 @@ static void RecordedPlayerHandleDrawTrainerPic(void)
         gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
         gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
         gSprites[gBankSpriteIds[gActiveBank]].pos2.y = 48;
-        gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+        gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
         gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
         gSprites[gBankSpriteIds[gActiveBank]].oam.affineMode = 0;
         gSprites[gBankSpriteIds[gActiveBank]].hFlip = 1;
@@ -1285,7 +1285,7 @@ static void RecordedPlayerHandleDrawTrainerPic(void)
 
         gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
         gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
-        gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+        gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
         gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
     }
 
@@ -1300,9 +1300,9 @@ static void RecordedPlayerHandleTrainerSlide(void)
 static void RecordedPlayerHandleTrainerSlideBack(void)
 {
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 35;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 35;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], SpriteCallbackDummy);
     gBattleBankFunc[gActiveBank] = sub_81899F0;
@@ -1323,8 +1323,8 @@ static void RecordedPlayerHandleFaintAnimation(void)
             gBattleSpritesDataPtr->healthBoxesData[gActiveBank].animationState = 0;
             HandleLowHpMusicChange(&gPlayerParty[gBattlePartyID[gActiveBank]], gActiveBank);
             PlaySE12WithPanning(SE_POKE_DEAD, -64);
-            gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
-            gSprites[gBankSpriteIds[gActiveBank]].data2 = 5;
+            gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
+            gSprites[gBankSpriteIds[gActiveBank]].data[2] = 5;
             gSprites[gBankSpriteIds[gActiveBank]].callback = sub_8039C00;
             gBattleBankFunc[gActiveBank] = sub_818A114;
         }
@@ -1633,7 +1633,7 @@ static void RecordedPlayerHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1695,11 +1695,11 @@ static void RecordedPlayerHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 50;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 50;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
-    gSprites[gBankSpriteIds[gActiveBank]].data5 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[5] = gActiveBank;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_805CC00);
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], 1);
diff --git a/src/battle_controller_safari.c b/src/battle_controller_safari.c
index 635f5fef1..2ec14cab5 100644
--- a/src/battle_controller_safari.c
+++ b/src/battle_controller_safari.c
@@ -384,7 +384,7 @@ static void SafariHandleDrawTrainerPic(void)
       30);
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
     gBattleBankFunc[gActiveBank] = CompleteOnBankSpriteCallbackDummy;
 }
diff --git a/src/battle_controller_wally.c b/src/battle_controller_wally.c
index 7aec76ffa..9df747888 100644
--- a/src/battle_controller_wally.c
+++ b/src/battle_controller_wally.c
@@ -396,18 +396,18 @@ static void DoHitAnimBlinkSpriteEffect(void)
 {
     u8 spriteId = gBankSpriteIds[gActiveBank];
 
-    if (gSprites[spriteId].data1 == 32)
+    if (gSprites[spriteId].data[1] == 32)
     {
-        gSprites[spriteId].data1 = 0;
+        gSprites[spriteId].data[1] = 0;
         gSprites[spriteId].invisible = 0;
         gDoingBattleAnim = FALSE;
         WallyBufferExecCompleted();
     }
     else
     {
-        if ((gSprites[spriteId].data1 % 4) == 0)
+        if ((gSprites[spriteId].data[1] % 4) == 0)
             gSprites[spriteId].invisible ^= 1;
-        gSprites[spriteId].data1++;
+        gSprites[spriteId].data[1]++;
     }
 }
 
@@ -1073,7 +1073,7 @@ static void WallyHandleDrawTrainerPic(void)
                                                30);
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = 240;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = -2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = -2;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
     gBattleBankFunc[gActiveBank] = CompleteOnBankSpriteCallbackDummy;
 }
@@ -1088,7 +1088,7 @@ static void WallyHandleTrainerSlide(void)
                                                30);
     gSprites[gBankSpriteIds[gActiveBank]].oam.paletteNum = gActiveBank;
     gSprites[gBankSpriteIds[gActiveBank]].pos2.x = -96;
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 2;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 2;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_805D7AC;
     gBattleBankFunc[gActiveBank] = CompleteOnBankSpriteCallbackDummy2;
 }
@@ -1408,7 +1408,7 @@ static void WallyHandleHitAnimation(void)
     else
     {
         gDoingBattleAnim = TRUE;
-        gSprites[gBankSpriteIds[gActiveBank]].data1 = 0;
+        gSprites[gBankSpriteIds[gActiveBank]].data[1] = 0;
         DoHitAnimHealthboxEffect(gActiveBank);
         gBattleBankFunc[gActiveBank] = DoHitAnimBlinkSpriteEffect;
     }
@@ -1462,11 +1462,11 @@ static void WallyHandleIntroTrainerBallThrow(void)
 
     oamt_add_pos2_onto_pos1(&gSprites[gBankSpriteIds[gActiveBank]]);
 
-    gSprites[gBankSpriteIds[gActiveBank]].data0 = 50;
-    gSprites[gBankSpriteIds[gActiveBank]].data2 = -40;
-    gSprites[gBankSpriteIds[gActiveBank]].data4 = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
+    gSprites[gBankSpriteIds[gActiveBank]].data[0] = 50;
+    gSprites[gBankSpriteIds[gActiveBank]].data[2] = -40;
+    gSprites[gBankSpriteIds[gActiveBank]].data[4] = gSprites[gBankSpriteIds[gActiveBank]].pos1.y;
     gSprites[gBankSpriteIds[gActiveBank]].callback = sub_80A6EEC;
-    gSprites[gBankSpriteIds[gActiveBank]].data5 = gActiveBank;
+    gSprites[gBankSpriteIds[gActiveBank]].data[5] = gActiveBank;
 
     StoreSpriteCallbackInData6(&gSprites[gBankSpriteIds[gActiveBank]], sub_805CC00);
     StartSpriteAnim(&gSprites[gBankSpriteIds[gActiveBank]], 1);
@@ -1499,17 +1499,17 @@ static void sub_816AA80(u8 bank)
                                         GetBankSpriteDefault_Y(bank),
                                         sub_80A82E4(bank));
 
-    gSprites[gUnknown_03005D7C[bank]].data1 = gBankSpriteIds[bank];
-    gSprites[gUnknown_03005D7C[bank]].data2 = bank;
+    gSprites[gUnknown_03005D7C[bank]].data[1] = gBankSpriteIds[bank];
+    gSprites[gUnknown_03005D7C[bank]].data[2] = bank;
 
-    gSprites[gBankSpriteIds[bank]].data0 = bank;
-    gSprites[gBankSpriteIds[bank]].data2 = species;
+    gSprites[gBankSpriteIds[bank]].data[0] = bank;
+    gSprites[gBankSpriteIds[bank]].data[2] = species;
     gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
 
     StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
     gSprites[gBankSpriteIds[bank]].invisible = TRUE;
     gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
-    gSprites[gUnknown_03005D7C[bank]].data0 = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
+    gSprites[gUnknown_03005D7C[bank]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
 }
 
 static void sub_816AC04(u8 taskId)
diff --git a/src/battle_gfx_sfx_util.c b/src/battle_gfx_sfx_util.c
index 8ab9b541a..813d6d71b 100644
--- a/src/battle_gfx_sfx_util.c
+++ b/src/battle_gfx_sfx_util.c
@@ -332,7 +332,7 @@ static u16 BattlePalaceGetTargetRetValue(void)
 
 void sub_805D714(struct Sprite *sprite)
 {
-    u8 spriteId = sprite->data1;
+    u8 spriteId = sprite->data[1];
 
     if (!gSprites[spriteId].affineAnimEnded)
         return;
@@ -367,7 +367,7 @@ void sub_805D7AC(struct Sprite *sprite)
 {
     if (!(gUnknown_020243FC & 1))
     {
-        sprite->pos2.x += sprite->data0;
+        sprite->pos2.x += sprite->data[0];
         if (sprite->pos2.x == 0)
         {
             if (sprite->pos2.y != 0)
@@ -1134,7 +1134,7 @@ void sub_805EB9C(u8 affineMode)
     }
 }
 
-#define tBank data0
+#define tBank data[0]
 
 void LoadAndCreateEnemyShadowSprites(void)
 {
@@ -1144,13 +1144,13 @@ void LoadAndCreateEnemyShadowSprites(void)
 
     bank = GetBankByIdentity(IDENTITY_OPPONENT_MON1);
     gBattleSpritesDataPtr->healthBoxesData[bank].shadowSpriteId = CreateSprite(&gSpriteTemplate_EnemyShadow, GetBankPosition(bank, 0), GetBankPosition(bank, 1) + 29, 0xC8);
-    gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].shadowSpriteId].data0 = bank;
+    gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].shadowSpriteId].data[0] = bank;
 
     if (IsDoubleBattle())
     {
         bank = GetBankByIdentity(IDENTITY_OPPONENT_MON2);
         gBattleSpritesDataPtr->healthBoxesData[bank].shadowSpriteId = CreateSprite(&gSpriteTemplate_EnemyShadow, GetBankPosition(bank, 0), GetBankPosition(bank, 1) + 29, 0xC8);
-        gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].shadowSpriteId].data0 = bank;
+        gSprites[gBattleSpritesDataPtr->healthBoxesData[bank].shadowSpriteId].data[0] = bank;
     }
 }
 
diff --git a/src/battle_interface.c b/src/battle_interface.c
index 240c64862..63813a424 100644
--- a/src/battle_interface.c
+++ b/src/battle_interface.c
@@ -927,7 +927,7 @@ u8 CreateBankHealthboxSprites(u8 bank)
             data6 = 2;
         }
         gSprites[healthboxSpriteId_1].oam.affineParam = healthboxSpriteId_2;
-        gSprites[healthboxSpriteId_2].data5 = healthboxSpriteId_1;
+        gSprites[healthboxSpriteId_2].data[5] = healthboxSpriteId_1;
         gSprites[healthboxSpriteId_2].callback = sub_8072924;
     }
     else
@@ -939,7 +939,7 @@ u8 CreateBankHealthboxSprites(u8 bank)
 
             gSprites[healthboxSpriteId_1].oam.affineParam = healthboxSpriteId_2;
 
-            gSprites[healthboxSpriteId_2].data5 = healthboxSpriteId_1;
+            gSprites[healthboxSpriteId_2].data[5] = healthboxSpriteId_1;
             gSprites[healthboxSpriteId_2].oam.tileNum += 32;
             gSprites[healthboxSpriteId_2].callback = sub_8072924;
 
@@ -952,7 +952,7 @@ u8 CreateBankHealthboxSprites(u8 bank)
 
             gSprites[healthboxSpriteId_1].oam.affineParam = healthboxSpriteId_2;
 
-            gSprites[healthboxSpriteId_2].data5 = healthboxSpriteId_1;
+            gSprites[healthboxSpriteId_2].data[5] = healthboxSpriteId_1;
             gSprites[healthboxSpriteId_2].oam.tileNum += 32;
             gSprites[healthboxSpriteId_2].callback = sub_8072924;
 
@@ -968,14 +968,14 @@ u8 CreateBankHealthboxSprites(u8 bank)
 
     CpuCopy32(GetHealthboxElementGfxPtr(HEALTHBOX_GFX_1), (void*)(OBJ_VRAM0 + unkSpritePtr->oam.tileNum * 32), 64);
 
-    gSprites[healthboxSpriteId_1].data5 = unkSpriteId;
-    gSprites[healthboxSpriteId_1].data6 = bank;
+    gSprites[healthboxSpriteId_1].data[5] = unkSpriteId;
+    gSprites[healthboxSpriteId_1].data[6] = bank;
     gSprites[healthboxSpriteId_1].invisible = 1;
 
     gSprites[healthboxSpriteId_2].invisible = 1;
 
-    unkSpritePtr->data5 = healthboxSpriteId_1;
-    unkSpritePtr->data6 = data6;
+    unkSpritePtr->data[5] = healthboxSpriteId_1;
+    unkSpritePtr->data[6] = data6;
     unkSpritePtr->invisible = 1;
 
     return healthboxSpriteId_1;
@@ -994,7 +994,7 @@ u8 CreateSafariPlayerHealthboxSprites(void)
     gSprites[healthboxSpriteId_2].oam.tileNum += 64;
 
     gSprites[healthboxSpriteId_1].oam.affineParam = healthboxSpriteId_2;
-    gSprites[healthboxSpriteId_2].data5 = healthboxSpriteId_1;
+    gSprites[healthboxSpriteId_2].data[5] = healthboxSpriteId_1;
 
     gSprites[healthboxSpriteId_2].callback = sub_8072924;
 
@@ -1008,9 +1008,9 @@ static const u8 *GetHealthboxElementGfxPtr(u8 elementId)
 
 static void sub_80728B4(struct Sprite *sprite)
 {
-    u8 var = sprite->data5;
+    u8 var = sprite->data[5];
 
-    switch (sprite->data6)
+    switch (sprite->data[6])
     {
     case 0:
         sprite->pos1.x = gSprites[var].pos1.x + 16;
@@ -1033,7 +1033,7 @@ static void sub_80728B4(struct Sprite *sprite)
 
 static void sub_8072924(struct Sprite *sprite)
 {
-    u8 otherSpriteId = sprite->data5;
+    u8 otherSpriteId = sprite->data[5];
 
     sprite->pos1.x = gSprites[otherSpriteId].pos1.x + 64;
     sprite->pos1.y = gSprites[otherSpriteId].pos1.y;
@@ -1054,14 +1054,14 @@ void SetBattleBarStruct(u8 bank, u8 healthboxSpriteId, s32 maxVal, s32 currVal,
 void SetHealthboxSpriteInvisible(u8 healthboxSpriteId)
 {
     gSprites[healthboxSpriteId].invisible = 1;
-    gSprites[gSprites[healthboxSpriteId].data5].invisible = 1;
+    gSprites[gSprites[healthboxSpriteId].data[5]].invisible = 1;
     gSprites[gSprites[healthboxSpriteId].oam.affineParam].invisible = 1;
 }
 
 void SetHealthboxSpriteVisible(u8 healthboxSpriteId)
 {
     gSprites[healthboxSpriteId].invisible = 0;
-    gSprites[gSprites[healthboxSpriteId].data5].invisible = 0;
+    gSprites[gSprites[healthboxSpriteId].data[5]].invisible = 0;
     gSprites[gSprites[healthboxSpriteId].oam.affineParam].invisible = 0;
 }
 
@@ -1074,7 +1074,7 @@ static void UpdateSpritePos(u8 spriteId, s16 x, s16 y)
 void DestoryHealthboxSprite(u8 healthboxSpriteId)
 {
     DestroySprite(&gSprites[gSprites[healthboxSpriteId].oam.affineParam]);
-    DestroySprite(&gSprites[gSprites[healthboxSpriteId].data5]);
+    DestroySprite(&gSprites[gSprites[healthboxSpriteId].data[5]]);
     DestroySprite(&gSprites[healthboxSpriteId]);
 }
 
@@ -1091,7 +1091,7 @@ void UpdateOamPriorityInAllHealthboxes(u8 priority)
     {
         u8 healthboxSpriteId_1 = gHealthBoxesIds[i];
         u8 healthboxSpriteId_2 = gSprites[gHealthBoxesIds[i]].oam.affineParam;
-        u8 healthboxSpriteId_3 = gSprites[gHealthBoxesIds[i]].data5;
+        u8 healthboxSpriteId_3 = gSprites[gHealthBoxesIds[i]].data[5];
 
         gSprites[healthboxSpriteId_1].oam.priority = priority;
         gSprites[healthboxSpriteId_2].oam.priority = priority;
@@ -1156,7 +1156,7 @@ static void UpdateLvlInHealthbox(u8 healthboxSpriteId, u8 lvl)
     windowTileData = AddTextPrinterAndCreateWindowOnHealthbox(text, xPos, 3, 2, &windowId);
     spriteTileNum = gSprites[healthboxSpriteId].oam.tileNum * 32;
 
-    if (GetBankSide(gSprites[healthboxSpriteId].data6) == SIDE_PLAYER)
+    if (GetBankSide(gSprites[healthboxSpriteId].data[6]) == SIDE_PLAYER)
     {
         objVram = (void*)(OBJ_VRAM0);
         if (!IsDoubleBattle())
@@ -1180,7 +1180,7 @@ void UpdateHpTextInHealthbox(u8 healthboxSpriteId, s16 value, u8 maxOrCurrent)
     u8 text[32];
     void *objVram;
 
-    if (GetBankSide(gSprites[healthboxSpriteId].data6) == SIDE_PLAYER && !IsDoubleBattle())
+    if (GetBankSide(gSprites[healthboxSpriteId].data[6]) == SIDE_PLAYER && !IsDoubleBattle())
     {
         spriteTileNum = gSprites[healthboxSpriteId].oam.tileNum * 32;
         if (maxOrCurrent != HP_CURRENT) // singles, max
@@ -1213,7 +1213,7 @@ void UpdateHpTextInHealthbox(u8 healthboxSpriteId, s16 value, u8 maxOrCurrent)
         u8 bank;
 
         memcpy(text, sUnknown_0832C3C4, sizeof(sUnknown_0832C3C4));
-        bank = gSprites[healthboxSpriteId].data6;
+        bank = gSprites[healthboxSpriteId].data[6];
         if (IsDoubleBattle() == TRUE || GetBankSide(bank) == SIDE_OPPONENT)
         {
             UpdateHpTextInHealthboxInDoubles(healthboxSpriteId, value, maxOrCurrent);
@@ -1223,7 +1223,7 @@ void UpdateHpTextInHealthbox(u8 healthboxSpriteId, s16 value, u8 maxOrCurrent)
             u32 var;
             u8 i;
 
-            if (GetBankSide(gSprites[healthboxSpriteId].data6) == SIDE_PLAYER)
+            if (GetBankSide(gSprites[healthboxSpriteId].data[6]) == SIDE_PLAYER)
             {
                 if (maxOrCurrent == HP_CURRENT)
                     var = 29;
@@ -1258,11 +1258,11 @@ static void UpdateHpTextInHealthboxInDoubles(u8 healthboxSpriteId, s16 value, u8
     u8 text[32];
     void *objVram;
 
-    if (GetBankSide(gSprites[healthboxSpriteId].data6) == SIDE_PLAYER)
+    if (GetBankSide(gSprites[healthboxSpriteId].data[6]) == SIDE_PLAYER)
     {
-        if (gBattleSpritesDataPtr->bankData[gSprites[healthboxSpriteId].data6].hpNumbersNoBars) // don't print text if only bars are visible
+        if (gBattleSpritesDataPtr->bankData[gSprites[healthboxSpriteId].data[6]].hpNumbersNoBars) // don't print text if only bars are visible
         {
-            spriteTileNum = gSprites[gSprites[healthboxSpriteId].data5].oam.tileNum * 32;
+            spriteTileNum = gSprites[gSprites[healthboxSpriteId].data[5]].oam.tileNum * 32;
             objVram = (void*)(OBJ_VRAM0) + spriteTileNum;
 
             if (maxOrCurrent != HP_CURRENT) // doubles, max hp
@@ -1292,7 +1292,7 @@ static void UpdateHpTextInHealthboxInDoubles(u8 healthboxSpriteId, s16 value, u8
         u8 bank;
 
         memcpy(text, sUnknown_0832C3D8, sizeof(sUnknown_0832C3D8));
-        bank = gSprites[healthboxSpriteId].data6;
+        bank = gSprites[healthboxSpriteId].data[6];
 
         if (gBattleSpritesDataPtr->bankData[bank].hpNumbersNoBars) // don't print text if only bars are visible
         {
@@ -1304,7 +1304,7 @@ static void UpdateHpTextInHealthboxInDoubles(u8 healthboxSpriteId, s16 value, u8
             if (maxOrCurrent == HP_CURRENT)
                 var = 0;
 
-            r7 = gSprites[healthboxSpriteId].data5;
+            r7 = gSprites[healthboxSpriteId].data[5];
             txtPtr = ConvertIntToDecimalStringN(text + 6, value, STR_CONV_MODE_RIGHT_ALIGN, 3);
             if (!maxOrCurrent)
                 StringCopy(txtPtr, gText_Slash);
@@ -1354,7 +1354,7 @@ static void sub_80730D4(u8 healthboxSpriteId, struct Pokemon *mon)
     u8 i, var, nature, healthboxSpriteId_2;
 
     memcpy(text, sUnknown_0832C3C4, sizeof(sUnknown_0832C3C4));
-    barFontGfx = &gMonSpritesGfxPtr->barFontGfx[0x520 + (GetBankIdentity(gSprites[healthboxSpriteId].data6) * 384)];
+    barFontGfx = &gMonSpritesGfxPtr->barFontGfx[0x520 + (GetBankIdentity(gSprites[healthboxSpriteId].data[6]) * 384)];
     var = 5;
     nature = GetNature(mon);
     StringCopy(text + 6, gNatureNamePointers[nature]);
@@ -1385,7 +1385,7 @@ static void sub_80730D4(u8 healthboxSpriteId, struct Pokemon *mon)
         barFontGfx += 0x20;
     }
 
-    healthboxSpriteId_2 = gSprites[healthboxSpriteId].data5;
+    healthboxSpriteId_2 = gSprites[healthboxSpriteId].data[5];
     ConvertIntToDecimalStringN(text + 6, gBattleStruct->field_7C, STR_CONV_MODE_RIGHT_ALIGN, 2);
     ConvertIntToDecimalStringN(text + 9, gBattleStruct->field_7B, STR_CONV_MODE_RIGHT_ALIGN, 2);
     text[5] = CHAR_SPACE;
@@ -1434,7 +1434,7 @@ void SwapHpBarsWithHpText(void)
 
                 if (noBars == TRUE) // bars to text
                 {
-                    spriteId = gSprites[gHealthBoxesIds[i]].data5;
+                    spriteId = gSprites[gHealthBoxesIds[i]].data[5];
 
                     CpuFill32(0, (void*)(OBJ_VRAM0 + gSprites[spriteId].oam.tileNum * 32), 0x100);
                     UpdateHpTextInHealthboxInDoubles(gHealthBoxesIds[i], GetMonData(&gPlayerParty[gBattlePartyID[i]], MON_DATA_HP), HP_CURRENT);
@@ -1457,7 +1457,7 @@ void SwapHpBarsWithHpText(void)
                     }
                     else
                     {
-                        spriteId = gSprites[gHealthBoxesIds[i]].data5;
+                        spriteId = gSprites[gHealthBoxesIds[i]].data[5];
 
                         CpuFill32(0, (void *)(OBJ_VRAM0 + gSprites[spriteId].oam.tileNum * 32), 0x100);
                         UpdateHpTextInHealthboxInDoubles(gHealthBoxesIds[i], GetMonData(&gEnemyParty[gBattlePartyID[i]], MON_DATA_HP), HP_CURRENT);
@@ -1472,7 +1472,7 @@ void SwapHpBarsWithHpText(void)
                         UpdateHealthboxAttribute(gHealthBoxesIds[i], &gEnemyParty[gBattlePartyID[i]], HEALTHBOX_NICK);
                 }
             }
-            gSprites[gHealthBoxesIds[i]].data7 ^= 1;
+            gSprites[gHealthBoxesIds[i]].data[7] ^= 1;
         }
     }
 }
@@ -1524,7 +1524,7 @@ u8 CreatePartyStatusSummarySprites(u8 bank, struct HpAndStatus *partyInfo, u8 ar
     barSpriteId = CreateSprite(&sStatusSummaryBarSpriteTemplates[isOpponent], bar_X, bar_Y, 10);
     SetSubspriteTables(&gSprites[barSpriteId], sStatusSummaryBar_SubspriteTable);
     gSprites[barSpriteId].pos2.x = bar_pos2_X;
-    gSprites[barSpriteId].data0 = bar_data0;
+    gSprites[barSpriteId].data[0] = bar_data0;
 
     if (isOpponent)
     {
@@ -1549,22 +1549,22 @@ u8 CreatePartyStatusSummarySprites(u8 bank, struct HpAndStatus *partyInfo, u8 ar
             gSprites[ballIconSpritesIds[i]].pos2.y = 0;
         }
 
-        gSprites[ballIconSpritesIds[i]].data0 = barSpriteId;
+        gSprites[ballIconSpritesIds[i]].data[0] = barSpriteId;
 
         if (!isOpponent)
         {
             gSprites[ballIconSpritesIds[i]].pos1.x += 10 * i + 24;
-            gSprites[ballIconSpritesIds[i]].data1 = i * 7 + 10;
+            gSprites[ballIconSpritesIds[i]].data[1] = i * 7 + 10;
             gSprites[ballIconSpritesIds[i]].pos2.x = 120;
         }
         else
         {
             gSprites[ballIconSpritesIds[i]].pos1.x -= 10 * (5 - i) + 24;
-            gSprites[ballIconSpritesIds[i]].data1 = (6 - i) * 7 + 10;
+            gSprites[ballIconSpritesIds[i]].data[1] = (6 - i) * 7 + 10;
             gSprites[ballIconSpritesIds[i]].pos2.x = -120;
         }
 
-        gSprites[ballIconSpritesIds[i]].data2 = isOpponent;
+        gSprites[ballIconSpritesIds[i]].data[2] = isOpponent;
     }
 
     if (GetBankSide(bank) == SIDE_PLAYER)
@@ -1576,7 +1576,7 @@ u8 CreatePartyStatusSummarySprites(u8 bank, struct HpAndStatus *partyInfo, u8 ar
                 if (partyInfo[i].hp == 0xFFFF) // empty slot or an egg
                 {
                     gSprites[ballIconSpritesIds[i]].oam.tileNum += 1;
-                    gSprites[ballIconSpritesIds[i]].data7 = 1;
+                    gSprites[ballIconSpritesIds[i]].data[7] = 1;
                 }
                 else if (partyInfo[i].hp == 0) // fainted mon
                 {
@@ -1595,7 +1595,7 @@ u8 CreatePartyStatusSummarySprites(u8 bank, struct HpAndStatus *partyInfo, u8 ar
                 if (partyInfo[j].hp == 0xFFFF) // empty slot or an egg
                 {
                     gSprites[ballIconSpritesIds[var]].oam.tileNum += 1;
-                    gSprites[ballIconSpritesIds[var]].data7 = 1;
+                    gSprites[ballIconSpritesIds[var]].data[7] = 1;
                     var--;
                     continue;
                 }
@@ -1624,7 +1624,7 @@ u8 CreatePartyStatusSummarySprites(u8 bank, struct HpAndStatus *partyInfo, u8 ar
                 if (partyInfo[i].hp == 0xFFFF) // empty slot or an egg
                 {
                     gSprites[ballIconSpritesIds[var]].oam.tileNum += 1;
-                    gSprites[ballIconSpritesIds[var]].data7 = 1;
+                    gSprites[ballIconSpritesIds[var]].data[7] = 1;
                 }
                 else if (partyInfo[i].hp == 0) // fainted mon
                 {
@@ -1644,7 +1644,7 @@ u8 CreatePartyStatusSummarySprites(u8 bank, struct HpAndStatus *partyInfo, u8 ar
                 if (partyInfo[j].hp == 0xFFFF) // empty slot or an egg
                 {
                     gSprites[ballIconSpritesIds[i]].oam.tileNum += 1;
-                    gSprites[ballIconSpritesIds[i]].data7 = 1;
+                    gSprites[ballIconSpritesIds[i]].data[7] = 1;
                     i++;
                     continue;
                 }
@@ -1714,21 +1714,21 @@ void sub_8073C30(u8 taskId)
         {
             if (GetBankSide(bank) != SIDE_PLAYER)
             {
-                gSprites[sp[5 - i]].data1 = 7 * i;
-                gSprites[sp[5 - i]].data3 = 0;
-                gSprites[sp[5 - i]].data4 = 0;
+                gSprites[sp[5 - i]].data[1] = 7 * i;
+                gSprites[sp[5 - i]].data[3] = 0;
+                gSprites[sp[5 - i]].data[4] = 0;
                 gSprites[sp[5 - i]].callback = sub_8074158;
             }
             else
             {
-                gSprites[sp[i]].data1 = 7 * i;
-                gSprites[sp[i]].data3 = 0;
-                gSprites[sp[i]].data4 = 0;
+                gSprites[sp[i]].data[1] = 7 * i;
+                gSprites[sp[i]].data[3] = 0;
+                gSprites[sp[i]].data[4] = 0;
                 gSprites[sp[i]].callback = sub_8074158;
             }
         }
-        gSprites[r10].data0 /= 2;
-        gSprites[r10].data1 = 0;
+        gSprites[r10].data[0] /= 2;
+        gSprites[r10].data[1] = 0;
         gSprites[r10].callback = sub_8074090;
         SetSubspriteTables(&gSprites[r10], sUnknown_0832C2CC);
         gTasks[taskId].func = sub_8073E08;
@@ -1831,17 +1831,17 @@ static void sub_8073F98(u8 taskId)
 static void SpriteCB_StatusSummaryBar(struct Sprite *sprite)
 {
     if (sprite->pos2.x != 0)
-        sprite->pos2.x += sprite->data0;
+        sprite->pos2.x += sprite->data[0];
 }
 
 static void sub_8074090(struct Sprite *sprite)
 {
-    sprite->data1 += 32;
-    if (sprite->data0 > 0)
-        sprite->pos2.x += sprite->data1 >> 4;
+    sprite->data[1] += 32;
+    if (sprite->data[0] > 0)
+        sprite->pos2.x += sprite->data[1] >> 4;
     else
-        sprite->pos2.x -= sprite->data1 >> 4;
-    sprite->data1 &= 0xF;
+        sprite->pos2.x -= sprite->data[1] >> 4;
+    sprite->data[1] &= 0xF;
 }
 
 static void SpriteCB_StatusSummaryBallsOnBattleStart(struct Sprite *sprite)
@@ -1850,16 +1850,16 @@ static void SpriteCB_StatusSummaryBallsOnBattleStart(struct Sprite *sprite)
     u16 var2;
     s8 pan;
 
-    if (sprite->data1 > 0)
+    if (sprite->data[1] > 0)
     {
-        sprite->data1--;
+        sprite->data[1]--;
         return;
     }
 
-    var1 = sprite->data2;
-    var2 = sprite->data3;
+    var1 = sprite->data[2];
+    var2 = sprite->data[3];
     var2 += 56;
-    sprite->data3 = var2 & 0xFFF0;
+    sprite->data[3] = var2 & 0xFFF0;
 
     if (var1 != 0)
     {
@@ -1880,7 +1880,7 @@ static void SpriteCB_StatusSummaryBallsOnBattleStart(struct Sprite *sprite)
         if (var1 != 0)
             pan = PAN_SIDE_PLAYER;
 
-        if (sprite->data7 != 0)
+        if (sprite->data[7] != 0)
             PlaySE2WithPanning(SE_TB_KARA, pan);
         else
             PlaySE1WithPanning(SE_TB_KON, pan);
@@ -1894,15 +1894,15 @@ static void sub_8074158(struct Sprite *sprite)
     u8 var1;
     u16 var2;
 
-    if (sprite->data1 > 0)
+    if (sprite->data[1] > 0)
     {
-        sprite->data1--;
+        sprite->data[1]--;
         return;
     }
-    var1 = sprite->data2;
-    var2 = sprite->data3;
+    var1 = sprite->data[2];
+    var2 = sprite->data[3];
     var2 += 56;
-    sprite->data3 = var2 & 0xFFF0;
+    sprite->data[3] = var2 & 0xFFF0;
     if (var1 != 0)
         sprite->pos2.x += var2 >> 4;
     else
@@ -1917,7 +1917,7 @@ static void sub_8074158(struct Sprite *sprite)
 
 static void SpriteCB_StatusSummaryBallsOnSwitchout(struct Sprite *sprite)
 {
-    u8 barSpriteId = sprite->data0;
+    u8 barSpriteId = sprite->data[0];
 
     sprite->pos2.x = gSprites[barSpriteId].pos2.x;
     sprite->pos2.y = gSprites[barSpriteId].pos2.y;
@@ -1964,7 +1964,7 @@ static void UpdateNickInHealthbox(u8 healthboxSpriteId, struct Pokemon *mon)
 
     spriteTileNum = gSprites[healthboxSpriteId].oam.tileNum * 32;
 
-    if (GetBankSide(gSprites[healthboxSpriteId].data6) == SIDE_PLAYER)
+    if (GetBankSide(gSprites[healthboxSpriteId].data[6]) == SIDE_PLAYER)
     {
         sub_8075198((void*)(0x6010040 + spriteTileNum), windowTileData, 6);
         ptr = (void*)(OBJ_VRAM0);
@@ -1991,13 +1991,13 @@ static void TryAddPokeballIconToHealthbox(u8 healthboxSpriteId, bool8 noStatus)
     if (gBattleTypeFlags & BATTLE_TYPE_TRAINER)
         return;
 
-    bank = gSprites[healthboxSpriteId].data6;
+    bank = gSprites[healthboxSpriteId].data[6];
     if (GetBankSide(bank) == SIDE_PLAYER)
         return;
     if (!GetSetPokedexFlag(SpeciesToNationalPokedexNum(GetMonData(&gEnemyParty[gBattlePartyID[bank]], MON_DATA_SPECIES)), FLAG_GET_CAUGHT))
         return;
 
-    healthboxSpriteId_2 = gSprites[healthboxSpriteId].data5;
+    healthboxSpriteId_2 = gSprites[healthboxSpriteId].data[5];
 
     if (noStatus)
         CpuCopy32(GetHealthboxElementGfxPtr(HEALTHBOX_GFX_70), (void*)(OBJ_VRAM0 + (gSprites[healthboxSpriteId_2].oam.tileNum + 8) * 32), 32);
@@ -2014,8 +2014,8 @@ static void UpdateStatusIconInHealthbox(u8 healthboxSpriteId)
     s16 tileNumAdder;
     u8 statusPalId;
 
-    bank = gSprites[healthboxSpriteId].data6;
-    healthboxSpriteId_2 = gSprites[healthboxSpriteId].data5;
+    bank = gSprites[healthboxSpriteId].data[6];
+    healthboxSpriteId_2 = gSprites[healthboxSpriteId].data[5];
     if (GetBankSide(bank) == SIDE_PLAYER)
     {
         status = GetMonData(&gPlayerParty[gBattlePartyID[bank]], MON_DATA_STATUS);
@@ -2178,12 +2178,12 @@ static void UpdateLeftNoOfBallsTextOnHealthbox(u8 healthboxSpriteId)
 void UpdateHealthboxAttribute(u8 healthboxSpriteId, struct Pokemon *mon, u8 elementId)
 {
     s32 maxHp, currHp;
-    u8 bank = gSprites[healthboxSpriteId].data6;
+    u8 bank = gSprites[healthboxSpriteId].data[6];
 
     if (elementId == HEALTHBOX_ALL && !IsDoubleBattle())
         GetBankSide(bank); // pointless function call
 
-    if (GetBankSide(gSprites[healthboxSpriteId].data6) == SIDE_PLAYER)
+    if (GetBankSide(gSprites[healthboxSpriteId].data[6]) == SIDE_PLAYER)
     {
         u8 isDoubles;
 
@@ -2308,7 +2308,7 @@ static void sub_8074B9C(u8 bank, u8 whichBar)
         }
         for (i = 0; i < 6; i++)
         {
-            u8 healthboxSpriteId_2 = gSprites[gBattleSpritesDataPtr->battleBars[bank].healthboxSpriteId].data5;
+            u8 healthboxSpriteId_2 = gSprites[gBattleSpritesDataPtr->battleBars[bank].healthboxSpriteId].data[5];
             if (i < 2)
                 CpuCopy32(GetHealthboxElementGfxPtr(barElementId) + array[i] * 32,
                           (void*)(OBJ_VRAM0 + (gSprites[healthboxSpriteId_2].oam.tileNum + 2 + i) * 32), 32);
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index d9b35c053..f91a52480 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -6782,8 +6782,8 @@ static bool8 sub_804F344(void)
     return (gBattle_BG2_X != 0x1A0);
 }
 
-#define sDestroy                    data0
-#define sSavedLvlUpBoxXPosition     data1
+#define sDestroy                    data[0]
+#define sSavedLvlUpBoxXPosition     data[1]
 
 static void PutMonIconOnLvlUpBox(void)
 {
diff --git a/src/berry_blender.c b/src/berry_blender.c
index aa333ebaf..a6144a35d 100644
--- a/src/berry_blender.c
+++ b/src/berry_blender.c
@@ -1002,35 +1002,35 @@ static void sub_807FAC8(void)
 
 static void sub_807FD08(struct Sprite* sprite)
 {
-    sprite->data1 += sprite->data6;
-    sprite->data2 -= sprite->data4;
-    sprite->data2 += sprite->data7;
-    sprite->data0 += sprite->data7;
-    sprite->data4--;
+    sprite->data[1] += sprite->data[6];
+    sprite->data[2] -= sprite->data[4];
+    sprite->data[2] += sprite->data[7];
+    sprite->data[0] += sprite->data[7];
+    sprite->data[4]--;
 
-    if (sprite->data0 < sprite->data2)
+    if (sprite->data[0] < sprite->data[2])
     {
-        sprite->data3 = sprite->data4 = sprite->data3 - 1;
+        sprite->data[3] = sprite->data[4] = sprite->data[3] - 1;
 
-        if (++sprite->data5 > 3)
+        if (++sprite->data[5] > 3)
             DestroySprite(sprite);
         else
             PlaySE(SE_TB_KARA);
     }
-    sprite->pos1.x = sprite->data1;
-    sprite->pos1.y = sprite->data2;
+    sprite->pos1.x = sprite->data[1];
+    sprite->pos1.y = sprite->data[2];
 }
 
 static void sub_807FD64(struct Sprite* sprite, s16 a2, s16 a3, s16 a4, s16 a5, s16 a6)
 {
-    sprite->data0 = a3;
-    sprite->data1 = a2;
-    sprite->data2 = a3;
-    sprite->data3 = a4;
-    sprite->data4 = 10;
-    sprite->data5 = 0;
-    sprite->data6 = a5;
-    sprite->data7 = a6;
+    sprite->data[0] = a3;
+    sprite->data[1] = a2;
+    sprite->data[2] = a3;
+    sprite->data[3] = a4;
+    sprite->data[4] = 10;
+    sprite->data[5] = 0;
+    sprite->data[6] = a5;
+    sprite->data[7] = a6;
     sprite->callback = sub_807FD08;
 }
 
@@ -2909,10 +2909,10 @@ static void BerryBlender_SetBackgroundsPos(void)
 
 static void sub_8082E3C(struct Sprite* sprite)
 {
-    sprite->data2 += sprite->data0;
-    sprite->data3 += sprite->data1;
-    sprite->pos2.x = sprite->data2 / 8;
-    sprite->pos2.y = sprite->data3 / 8;
+    sprite->data[2] += sprite->data[0];
+    sprite->data[3] += sprite->data[1];
+    sprite->pos2.x = sprite->data[2] / 8;
+    sprite->pos2.y = sprite->data[3] / 8;
 
     if (sprite->animEnded)
         DestroySprite(sprite);
@@ -2935,8 +2935,8 @@ static void sub_8082E84(void)
         y = gSineTable[(rand & 0xFF)] / 4;
 
         spriteId = CreateSprite(&sUnknown_08339BE0, x + 120, y + 80, 1);
-        gSprites[spriteId].data0 = 16 - (Random() % 32);
-        gSprites[spriteId].data1 = 16 - (Random() % 32);
+        gSprites[spriteId].data[0] = 16 - (Random() % 32);
+        gSprites[spriteId].data[1] = 16 - (Random() % 32);
 
         gSprites[spriteId].callback = sub_8082E3C;
     }
@@ -2944,8 +2944,8 @@ static void sub_8082E84(void)
 
 static void sub_8082F68(struct Sprite* sprite)
 {
-    sprite->data0++;
-    sprite->pos2.y = -(sprite->data0 / 3);
+    sprite->data[0]++;
+    sprite->pos2.y = -(sprite->data[0] / 3);
 
     if (sprite->animEnded)
         DestroySprite(sprite);
@@ -2953,8 +2953,8 @@ static void sub_8082F68(struct Sprite* sprite)
 
 static void sub_8082F9C(struct Sprite* sprite)
 {
-    sprite->data0++;
-    sprite->pos2.y = -(sprite->data0 * 2);
+    sprite->data[0]++;
+    sprite->pos2.y = -(sprite->data[0] * 2);
 
     if (sprite->pos2.y < -12)
         sprite->pos2.y = -12;
@@ -2970,68 +2970,68 @@ static void Blender_SetBankBerryData(u8 bank, u16 itemId)
 
 static void sub_8083010(struct Sprite* sprite)
 {
-    switch (sprite->data0)
+    switch (sprite->data[0])
     {
     case 0:
-        sprite->data1 += 8;
-        if (sprite->data1 > 88)
+        sprite->data[1] += 8;
+        if (sprite->data[1] > 88)
         {
-            sprite->data1 = 88;
-            sprite->data0++;
+            sprite->data[1] = 88;
+            sprite->data[0]++;
             PlaySE(SE_KON);
         }
         break;
     case 1:
-        sprite->data2 += 1;
-        if (sprite->data2 > 20)
+        sprite->data[2] += 1;
+        if (sprite->data[2] > 20)
         {
-            sprite->data0++;
-            sprite->data2 = 0;
+            sprite->data[0]++;
+            sprite->data[2] = 0;
         }
         break;
     case 2:
-        sprite->data1 += 4;
-        if (sprite->data1 > 176)
+        sprite->data[1] += 4;
+        if (sprite->data[1] > 176)
         {
-            if (++sprite->data3 == 3)
+            if (++sprite->data[3] == 3)
             {
                 DestroySprite(sprite);
                 CreateSprite(&sUnknown_08339C60, 120, -20, 2);
             }
             else
             {
-                sprite->data0 = 0;
-                sprite->data1 = -16;
-                StartSpriteAnim(sprite, sprite->data3);
+                sprite->data[0] = 0;
+                sprite->data[1] = -16;
+                StartSpriteAnim(sprite, sprite->data[3]);
             }
         }
         break;
     }
 
-    sprite->pos2.y = sprite->data1;
+    sprite->pos2.y = sprite->data[1];
 }
 
 static void sub_80830C0(struct Sprite* sprite)
 {
-    switch (sprite->data0)
+    switch (sprite->data[0])
     {
     case 0:
-        sprite->data1 += 8;
-        if (sprite->data1 > 92)
+        sprite->data[1] += 8;
+        if (sprite->data[1] > 92)
         {
-            sprite->data1 = 92;
-            sprite->data0++;
+            sprite->data[1] = 92;
+            sprite->data[0]++;
             PlaySE(SE_PIN);
         }
         break;
     case 1:
-        sprite->data2 += 1;
-        if (sprite->data2 > 20)
-            sprite->data0++;
+        sprite->data[2] += 1;
+        if (sprite->data[2] > 20)
+            sprite->data[0]++;
         break;
     case 2:
-        sprite->data1 += 4;
-        if (sprite->data1 > 176)
+        sprite->data[1] += 4;
+        if (sprite->data[1] > 176)
         {
             sBerryBlenderData->mainState++;
             DestroySprite(sprite);
@@ -3039,7 +3039,7 @@ static void sub_80830C0(struct Sprite* sprite)
         break;
     }
 
-    sprite->pos2.y = sprite->data1;
+    sprite->pos2.y = sprite->data[1];
 }
 
 static void sub_8083140(u16 a0, u16 a1)
diff --git a/src/decoration.c b/src/decoration.c
index 8093825f4..e4c84d0b9 100644
--- a/src/decoration.c
+++ b/src/decoration.c
@@ -1302,7 +1302,7 @@ void sub_8128060(u8 taskId)
 
 void ConfigureCameraObjectForPlacingDecoration(struct PlaceDecorationGraphicsDataBuffer *data, u8 decor)
 {
-    sDecor_CameraSpriteObjectIdx1 = gSprites[gUnknown_03005DD0.unk4].data0;
+    sDecor_CameraSpriteObjectIdx1 = gSprites[gUnknown_03005DD0.unk4].data[0];
     gUnknown_03005DD0.unk4 = gpu_pal_decompress_alloc_tag_and_upload(data, decor);
     gSprites[gUnknown_03005DD0.unk4].oam.priority = 1;
     gSprites[gUnknown_03005DD0.unk4].callback = sub_81292D0;
@@ -1383,8 +1383,8 @@ void sub_812826C(u8 taskId)
 void sub_81283BC(u8 taskId)
 {
     gTasks[taskId].data[10] = 0;
-    gSprites[sDecor_CameraSpriteObjectIdx1].data7 = 1;
-    gSprites[sDecor_CameraSpriteObjectIdx2].data7 = 1;
+    gSprites[sDecor_CameraSpriteObjectIdx1].data[7] = 1;
+    gSprites[sDecor_CameraSpriteObjectIdx2].data[7] = 1;
     sub_8128DE0();
     sub_8128950(taskId);
 }
@@ -1392,8 +1392,8 @@ void sub_81283BC(u8 taskId)
 void sub_8128414(u8 taskId)
 {
     gTasks[taskId].data[10] = 0;
-    gSprites[sDecor_CameraSpriteObjectIdx1].data7 = 1;
-    gSprites[sDecor_CameraSpriteObjectIdx2].data7 = 1;
+    gSprites[sDecor_CameraSpriteObjectIdx1].data[7] = 1;
+    gSprites[sDecor_CameraSpriteObjectIdx2].data[7] = 1;
     sub_8128DE0();
     StringExpandPlaceholders(gStringVar4, gText_CancelDecorating);
     DisplayItemMessageOnField(taskId, gStringVar4, sub_8128B80);
@@ -1769,8 +1769,8 @@ bool8 sub_8128DB4(void)
 void sub_8128DE0(void)
 {
     sDecorationLastDirectionMoved = 0;
-    gSprites[sDecor_CameraSpriteObjectIdx1].data2 = 0;
-    gSprites[sDecor_CameraSpriteObjectIdx1].data3 = 0;
+    gSprites[sDecor_CameraSpriteObjectIdx1].data[2] = 0;
+    gSprites[sDecor_CameraSpriteObjectIdx1].data[3] = 0;
 }
 
 void sub_8128E18(u8 taskId)
@@ -1778,7 +1778,7 @@ void sub_8128E18(u8 taskId)
     s16 *data;
 
     data = gTasks[taskId].data;
-    if (!gSprites[sDecor_CameraSpriteObjectIdx1].data4)
+    if (!gSprites[sDecor_CameraSpriteObjectIdx1].data[4])
     {
         if (data[10] == 1)
         {
@@ -1792,29 +1792,29 @@ void sub_8128E18(u8 taskId)
         if ((gMain.heldKeys & 0x0F0) == DPAD_UP)
         {
             sDecorationLastDirectionMoved = DIR_SOUTH;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data2 =  0;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data3 = -2;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[2] =  0;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[3] = -2;
             data[1]--;
         }
         if ((gMain.heldKeys & 0x0F0) == DPAD_DOWN)
         {
             sDecorationLastDirectionMoved = DIR_NORTH;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data2 =  0;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data3 =  2;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[2] =  0;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[3] =  2;
             data[1]++;
         }
         if ((gMain.heldKeys & 0x0F0) == DPAD_LEFT)
         {
             sDecorationLastDirectionMoved = DIR_WEST;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data2 = -2;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data3 =  0;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[2] = -2;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[3] =  0;
             data[0]--;
         }
         if ((gMain.heldKeys & 0x0F0) == DPAD_RIGHT)
         {
             sDecorationLastDirectionMoved = DIR_EAST;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data2 =  2;
-            gSprites[sDecor_CameraSpriteObjectIdx1].data3 =  0;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[2] =  2;
+            gSprites[sDecor_CameraSpriteObjectIdx1].data[3] =  0;
             data[0]++;
         }
         if (!sub_8128DB4() || !sub_8128D10(taskId))
@@ -1824,8 +1824,8 @@ void sub_8128E18(u8 taskId)
     }
     if (sDecorationLastDirectionMoved)
     {
-        gSprites[sDecor_CameraSpriteObjectIdx1].data4++;
-        gSprites[sDecor_CameraSpriteObjectIdx1].data4 &= 7;
+        gSprites[sDecor_CameraSpriteObjectIdx1].data[4]++;
+        gSprites[sDecor_CameraSpriteObjectIdx1].data[4] &= 7;
     }
     if (!data[10])
     {
@@ -1843,7 +1843,7 @@ void sub_8128E18(u8 taskId)
 void sub_8128FD8(u8 taskId)
 {
     sub_8197434(0, 1);
-    gSprites[sDecor_CameraSpriteObjectIdx1].data7 = 0;
+    gSprites[sDecor_CameraSpriteObjectIdx1].data[7] = 0;
     gTasks[taskId].data[10] = 0;
     gTasks[taskId].func = sub_8128E18;
 }
@@ -1954,20 +1954,20 @@ void SetDecorSelectionBoxOamAttributes(u8 decorShape)
 
 void sub_81292D0(struct Sprite *sprite)
 {
-    sprite->data2 = 0;
-    sprite->data3 = 0;
-    sprite->data4 = 0;
-    sprite->data5 = 0;
-    sprite->data6 = 0;
-    sprite->data7 = 0;
+    sprite->data[2] = 0;
+    sprite->data[3] = 0;
+    sprite->data[4] = 0;
+    sprite->data[5] = 0;
+    sprite->data[6] = 0;
+    sprite->data[7] = 0;
     sprite->callback = sub_81292E8;
 }
 
 void sub_81292E8(struct Sprite *sprite)
 {
-    if (sprite->data7 == 0)
+    if (sprite->data[7] == 0)
     {
-        if (sprite->data6 < 15)
+        if (sprite->data[6] < 15)
         {
             sprite->invisible = FALSE;
         }
@@ -1975,8 +1975,8 @@ void sub_81292E8(struct Sprite *sprite)
         {
             sprite->invisible = TRUE;
         }
-        sprite->data6 ++;
-        sprite->data6 &= 0x1F;
+        sprite->data[6] ++;
+        sprite->data[6] &= 0x1F;
     }
     else
     {
@@ -2248,7 +2248,7 @@ bool8 sub_81299AC(u8 taskId)
 void SetUpPuttingAwayDecorationPlayerAvatar(void)
 {
     player_get_direction_lower_nybble();
-    sDecor_CameraSpriteObjectIdx1 = gSprites[gUnknown_03005DD0.unk4].data0;
+    sDecor_CameraSpriteObjectIdx1 = gSprites[gUnknown_03005DD0.unk4].data[0];
     sub_812A39C();
     gUnknown_03005DD0.unk4 = CreateSprite(&gUnknown_085A7404, 0x78, 0x50, 0);
     if (gSaveBlock2Ptr->playerGender == MALE)
@@ -2299,7 +2299,7 @@ void sub_8129ABC(u8 taskId)
 void sub_8129B34(u8 taskId)
 {
     sub_8197434(0, 1);
-    gSprites[sDecor_CameraSpriteObjectIdx1].data7 = 0;
+    gSprites[sDecor_CameraSpriteObjectIdx1].data[7] = 0;
     gSprites[sDecor_CameraSpriteObjectIdx1].invisible = FALSE;
     gSprites[sDecor_CameraSpriteObjectIdx1].callback = sub_812A36C;
     gSprites[sDecor_CameraSpriteObjectIdx2].pos1.x = 0x88;
@@ -2719,9 +2719,9 @@ void sub_812A334(void)
 
 void sub_812A36C(struct Sprite *sprite)
 {
-    sprite->data0 ++;
-    sprite->data0 &= 0x1F;
-    if (sprite->data0 > 15)
+    sprite->data[0] ++;
+    sprite->data[0] &= 0x1F;
+    if (sprite->data[0] > 15)
     {
         sprite->invisible = TRUE;
     }
diff --git a/src/egg_hatch.c b/src/egg_hatch.c
index d9d77d2e9..7fba0cd00 100644
--- a/src/egg_hatch.c
+++ b/src/egg_hatch.c
@@ -709,16 +709,16 @@ static void CB2_EggHatch_1(void)
 
 static void SpriteCB_Egg_0(struct Sprite* sprite)
 {
-    if (++sprite->data0 > 20)
+    if (++sprite->data[0] > 20)
     {
         sprite->callback = SpriteCB_Egg_1;
-        sprite->data0 = 0;
+        sprite->data[0] = 0;
     }
     else
     {
-        sprite->data1 = (sprite->data1 + 20) & 0xFF;
-        sprite->pos2.x = Sin(sprite->data1, 1);
-        if (sprite->data0 == 15)
+        sprite->data[1] = (sprite->data[1] + 20) & 0xFF;
+        sprite->pos2.x = Sin(sprite->data[1], 1);
+        if (sprite->data[0] == 15)
         {
             PlaySE(SE_BOWA);
             StartSpriteAnim(sprite, 1);
@@ -729,19 +729,19 @@ static void SpriteCB_Egg_0(struct Sprite* sprite)
 
 static void SpriteCB_Egg_1(struct Sprite* sprite)
 {
-    if (++sprite->data2 > 30)
+    if (++sprite->data[2] > 30)
     {
-        if (++sprite->data0 > 20)
+        if (++sprite->data[0] > 20)
         {
             sprite->callback = SpriteCB_Egg_2;
-            sprite->data0 = 0;
-            sprite->data2 = 0;
+            sprite->data[0] = 0;
+            sprite->data[2] = 0;
         }
         else
         {
-            sprite->data1 = (sprite->data1 + 20) & 0xFF;
-            sprite->pos2.x = Sin(sprite->data1, 2);
-            if (sprite->data0 == 15)
+            sprite->data[1] = (sprite->data[1] + 20) & 0xFF;
+            sprite->pos2.x = Sin(sprite->data[1], 2);
+            if (sprite->data[0] == 15)
             {
                 PlaySE(SE_BOWA);
                 StartSpriteAnim(sprite, 2);
@@ -752,30 +752,30 @@ static void SpriteCB_Egg_1(struct Sprite* sprite)
 
 static void SpriteCB_Egg_2(struct Sprite* sprite)
 {
-    if (++sprite->data2 > 30)
+    if (++sprite->data[2] > 30)
     {
-        if (++sprite->data0 > 38)
+        if (++sprite->data[0] > 38)
         {
             u16 species;
 
             sprite->callback = SpriteCB_Egg_3;
-            sprite->data0 = 0;
+            sprite->data[0] = 0;
             species = GetMonData(&gPlayerParty[sEggHatchData->eggPartyID], MON_DATA_SPECIES);
             gSprites[sEggHatchData->pokeSpriteID].pos2.x = 0;
             gSprites[sEggHatchData->pokeSpriteID].pos2.y = 0;
         }
         else
         {
-            sprite->data1 = (sprite->data1 + 20) & 0xFF;
-            sprite->pos2.x = Sin(sprite->data1, 2);
-            if (sprite->data0 == 15)
+            sprite->data[1] = (sprite->data[1] + 20) & 0xFF;
+            sprite->pos2.x = Sin(sprite->data[1], 2);
+            if (sprite->data[0] == 15)
             {
                 PlaySE(SE_BOWA);
                 StartSpriteAnim(sprite, 2);
                 CreateRandomEggShardSprite();
                 CreateRandomEggShardSprite();
             }
-            if (sprite->data0 == 30)
+            if (sprite->data[0] == 30)
                 PlaySE(SE_BOWA);
         }
     }
@@ -783,60 +783,60 @@ static void SpriteCB_Egg_2(struct Sprite* sprite)
 
 static void SpriteCB_Egg_3(struct Sprite* sprite)
 {
-    if (++sprite->data0 > 50)
+    if (++sprite->data[0] > 50)
     {
         sprite->callback = SpriteCB_Egg_4;
-        sprite->data0 = 0;
+        sprite->data[0] = 0;
     }
 }
 
 static void SpriteCB_Egg_4(struct Sprite* sprite)
 {
     s16 i;
-    if (sprite->data0 == 0)
+    if (sprite->data[0] == 0)
         BeginNormalPaletteFade(-1, -1, 0, 0x10, 0xFFFF);
-    if (sprite->data0 < 4u)
+    if (sprite->data[0] < 4u)
     {
         for (i = 0; i <= 3; i++)
             CreateRandomEggShardSprite();
     }
-    sprite->data0++;
+    sprite->data[0]++;
     if (!gPaletteFade.active)
     {
         PlaySE(SE_TAMAGO);
         sprite->invisible = 1;
         sprite->callback = SpriteCB_Egg_5;
-        sprite->data0 = 0;
+        sprite->data[0] = 0;
     }
 }
 
 static void SpriteCB_Egg_5(struct Sprite* sprite)
 {
-    if (sprite->data0 == 0)
+    if (sprite->data[0] == 0)
     {
         gSprites[sEggHatchData->pokeSpriteID].invisible = 0;
         StartSpriteAffineAnim(&gSprites[sEggHatchData->pokeSpriteID], 1);
     }
-    if (sprite->data0 == 8)
+    if (sprite->data[0] == 8)
         BeginNormalPaletteFade(-1, -1, 0x10, 0, 0xFFFF);
-    if (sprite->data0 <= 9)
+    if (sprite->data[0] <= 9)
         gSprites[sEggHatchData->pokeSpriteID].pos1.y -= 1;
-    if (sprite->data0 > 40)
+    if (sprite->data[0] > 40)
         sprite->callback = SpriteCallbackDummy;
-    sprite->data0++;
+    sprite->data[0]++;
 }
 
 static void SpriteCB_EggShard(struct Sprite* sprite)
 {
-    sprite->data4 += sprite->data1;
-    sprite->data5 += sprite->data2;
+    sprite->data[4] += sprite->data[1];
+    sprite->data[5] += sprite->data[2];
 
-    sprite->pos2.x = sprite->data4 / 256;
-    sprite->pos2.y = sprite->data5 / 256;
+    sprite->pos2.x = sprite->data[4] / 256;
+    sprite->pos2.y = sprite->data[5] / 256;
 
-    sprite->data2 += sprite->data3;
+    sprite->data[2] += sprite->data[3];
 
-    if (sprite->pos1.y + sprite->pos2.y > sprite->pos1.y + 20 && sprite->data2 > 0)
+    if (sprite->pos1.y + sprite->pos2.y > sprite->pos1.y + 20 && sprite->data[2] > 0)
         DestroySprite(sprite);
 }
 
@@ -854,9 +854,9 @@ static void CreateRandomEggShardSprite(void)
 static void CreateEggShardSprite(u8 x, u8 y, s16 data1, s16 data2, s16 data3, u8 spriteAnimIndex)
 {
     u8 spriteID = CreateSprite(&sSpriteTemplate_EggShard, x, y, 4);
-    gSprites[spriteID].data1 = data1;
-    gSprites[spriteID].data2 = data2;
-    gSprites[spriteID].data3 = data3;
+    gSprites[spriteID].data[1] = data1;
+    gSprites[spriteID].data[2] = data2;
+    gSprites[spriteID].data[3] = data3;
     StartSpriteAnim(&gSprites[spriteID], spriteAnimIndex);
 }
 
diff --git a/src/evolution_graphics.c b/src/evolution_graphics.c
index eca5d4bdc..09c351b17 100644
--- a/src/evolution_graphics.c
+++ b/src/evolution_graphics.c
@@ -112,18 +112,18 @@ static void SpriteCB_PreEvoSparkleSet1(struct Sprite* sprite)
     {
         u8 matrixNum;
 
-        sprite->pos1.y = 88 - (sprite->data7 * sprite->data7) / 80;
-        sprite->pos2.y = Sin((u8)(sprite->data6), sprite->data5) / 4;
-        sprite->pos2.x = Cos((u8)(sprite->data6), sprite->data5);
-        sprite->data6 += 4;
-        if (sprite->data7 & 1)
-            sprite->data5--;
-        sprite->data7++;
+        sprite->pos1.y = 88 - (sprite->data[7] * sprite->data[7]) / 80;
+        sprite->pos2.y = Sin((u8)(sprite->data[6]), sprite->data[5]) / 4;
+        sprite->pos2.x = Cos((u8)(sprite->data[6]), sprite->data[5]);
+        sprite->data[6] += 4;
+        if (sprite->data[7] & 1)
+            sprite->data[5]--;
+        sprite->data[7]++;
         if (sprite->pos2.y > 0)
             sprite->subpriority = 1;
         else
             sprite->subpriority = 20;
-        matrixNum = sprite->data5 / 4 + 20;
+        matrixNum = sprite->data[5] / 4 + 20;
         if (matrixNum > 31)
             matrixNum = 31;
         sprite->oam.matrixNum = matrixNum;
@@ -137,9 +137,9 @@ static void CreatePreEvoSparkleSet1(u8 arg0)
     u8 spriteID = CreateSprite(&sEvoSparkleSpriteTemplate, 120, 88, 0);
     if (spriteID != MAX_SPRITES)
     {
-        gSprites[spriteID].data5 = 48;
-        gSprites[spriteID].data6 = arg0;
-        gSprites[spriteID].data7 = 0;
+        gSprites[spriteID].data[5] = 48;
+        gSprites[spriteID].data[6] = arg0;
+        gSprites[spriteID].data[7] = 0;
         gSprites[spriteID].oam.affineMode = 1;
         gSprites[spriteID].oam.matrixNum = 31;
         gSprites[spriteID].callback = SpriteCB_PreEvoSparkleSet1;
@@ -150,11 +150,11 @@ static void SpriteCB_PreEvoSparkleSet2(struct Sprite* sprite)
 {
     if (sprite->pos1.y < 88)
     {
-        sprite->pos1.y = 8 + (sprite->data7 * sprite->data7) / 5;
-        sprite->pos2.y = Sin((u8)(sprite->data6), sprite->data5) / 4;
-        sprite->pos2.x = Cos((u8)(sprite->data6), sprite->data5);
-        sprite->data5 = 8 + Sin((u8)(sprite->data7 * 4), 40);
-        sprite->data7++;
+        sprite->pos1.y = 8 + (sprite->data[7] * sprite->data[7]) / 5;
+        sprite->pos2.y = Sin((u8)(sprite->data[6]), sprite->data[5]) / 4;
+        sprite->pos2.x = Cos((u8)(sprite->data[6]), sprite->data[5]);
+        sprite->data[5] = 8 + Sin((u8)(sprite->data[7] * 4), 40);
+        sprite->data[7]++;
     }
     else
         DestroySprite(sprite);
@@ -165,9 +165,9 @@ static void CreatePreEvoSparkleSet2(u8 arg0)
     u8 spriteID = CreateSprite(&sEvoSparkleSpriteTemplate, 120, 8, 0);
     if (spriteID != MAX_SPRITES)
     {
-        gSprites[spriteID].data5 = 8;
-        gSprites[spriteID].data6 = arg0;
-        gSprites[spriteID].data7 = 0;
+        gSprites[spriteID].data[5] = 8;
+        gSprites[spriteID].data[6] = arg0;
+        gSprites[spriteID].data[7] = 0;
         gSprites[spriteID].oam.affineMode = 1;
         gSprites[spriteID].oam.matrixNum = 25;
         gSprites[spriteID].subpriority = 1;
@@ -177,12 +177,12 @@ static void CreatePreEvoSparkleSet2(u8 arg0)
 
 static void SpriteCB_PostEvoSparkleSet1(struct Sprite* sprite)
 {
-    if (sprite->data5 > 8)
+    if (sprite->data[5] > 8)
     {
-        sprite->pos2.y = Sin((u8)(sprite->data6), sprite->data5);
-        sprite->pos2.x = Cos((u8)(sprite->data6), sprite->data5);
-        sprite->data5 -= sprite->data3;
-        sprite->data6 += 4;
+        sprite->pos2.y = Sin((u8)(sprite->data[6]), sprite->data[5]);
+        sprite->pos2.x = Cos((u8)(sprite->data[6]), sprite->data[5]);
+        sprite->data[5] -= sprite->data[3];
+        sprite->data[6] += 4;
     }
     else
         DestroySprite(sprite);
@@ -193,10 +193,10 @@ static void CreatePostEvoSparkleSet1(u8 arg0, u8 arg1)
     u8 spriteID = CreateSprite(&sEvoSparkleSpriteTemplate, 120, 56, 0);
     if (spriteID != MAX_SPRITES)
     {
-        gSprites[spriteID].data3 = arg1;
-        gSprites[spriteID].data5 = 120;
-        gSprites[spriteID].data6 = arg0;
-        gSprites[spriteID].data7 = 0;
+        gSprites[spriteID].data[3] = arg1;
+        gSprites[spriteID].data[5] = 120;
+        gSprites[spriteID].data[6] = arg0;
+        gSprites[spriteID].data[7] = 0;
         gSprites[spriteID].oam.affineMode = 1;
         gSprites[spriteID].oam.matrixNum = 31;
         gSprites[spriteID].subpriority = 1;
@@ -206,29 +206,29 @@ static void CreatePostEvoSparkleSet1(u8 arg0, u8 arg1)
 
 static void SpriteCB_PostEvoSparkleSet2(struct Sprite* sprite)
 {
-    if (!(sprite->data7 & 3))
+    if (!(sprite->data[7] & 3))
         sprite->pos1.y++;
-    if (sprite->data6 < 128)
+    if (sprite->data[6] < 128)
     {
         u8 matrixNum;
 
-        sprite->pos2.y = -Sin((u8)(sprite->data6), sprite->data5);
-        sprite->pos1.x = 120 + (sprite->data3 * sprite->data7) / 3;
-        sprite->data6++;
-        matrixNum = 31 - (sprite->data6 * 12 / 128);
-        if (sprite->data6 > 64)
+        sprite->pos2.y = -Sin((u8)(sprite->data[6]), sprite->data[5]);
+        sprite->pos1.x = 120 + (sprite->data[3] * sprite->data[7]) / 3;
+        sprite->data[6]++;
+        matrixNum = 31 - (sprite->data[6] * 12 / 128);
+        if (sprite->data[6] > 64)
             sprite->subpriority = 1;
         else
         {
             sprite->invisible = 0;
             sprite->subpriority = 20;
-            if (sprite->data6 > 112 && sprite->data6 & 1)
+            if (sprite->data[6] > 112 && sprite->data[6] & 1)
                 sprite->invisible = 1;
         }
         if (matrixNum < 20)
             matrixNum = 20;
         sprite->oam.matrixNum = matrixNum;
-        sprite->data7++;
+        sprite->data[7]++;
     }
     else
         DestroySprite(sprite);
@@ -239,9 +239,9 @@ static void CreatePostEvoSparkleSet2(u8 arg0)
     u8 spriteID = CreateSprite(&sEvoSparkleSpriteTemplate, 120, 56, 0);
     if (spriteID != MAX_SPRITES)
     {
-        gSprites[spriteID].data3 = 3 - (Random() % 7);
-        gSprites[spriteID].data5 = 48 + (Random() & 0x3F);
-        gSprites[spriteID].data7 = 0;
+        gSprites[spriteID].data[3] = 3 - (Random() % 7);
+        gSprites[spriteID].data[5] = 48 + (Random() & 0x3F);
+        gSprites[spriteID].data[7] = 0;
         gSprites[spriteID].oam.affineMode = 1;
         gSprites[spriteID].oam.matrixNum = 31;
         gSprites[spriteID].subpriority = 20;
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index dfdeb63a3..97df5682b 100755
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -30,7 +30,7 @@
 bool8 FieldObjectCB2_##name(struct MapObject *, struct Sprite *);\
 void FieldObjectCB_##name(struct Sprite *sprite)\
 {\
-    FieldObjectStep(&gMapObjects[sprite->data0], sprite, FieldObjectCB2_##name);\
+    FieldObjectStep(&gMapObjects[sprite->data[0]], sprite, FieldObjectCB2_##name);\
 }\
 bool8 FieldObjectCB2_##name(struct MapObject *mapObject, struct Sprite *sprite)\
 {\
@@ -42,11 +42,11 @@ extern bool8 (*const (table)[])(struct MapObject *, struct Sprite *);\
 bool8 FieldObjectCB2_##name(struct MapObject *, struct Sprite *);\
 void FieldObjectCB_##name(struct Sprite *sprite)\
 {\
-    FieldObjectStep(&gMapObjects[sprite->data0], sprite, FieldObjectCB2_##name);\
+    FieldObjectStep(&gMapObjects[sprite->data[0]], sprite, FieldObjectCB2_##name);\
 }\
 bool8 FieldObjectCB2_##name(struct MapObject *mapObject, struct Sprite *sprite)\
 {\
-    return (table)[sprite->data1](mapObject, sprite);\
+    return (table)[sprite->data[1]](mapObject, sprite);\
 }
 
 #define field_object_path(idx, table, sub, path, catch, coord)\
@@ -655,7 +655,7 @@ static u8 SpawnFieldObjectInternal(struct MapObjectTemplate *mapObjectTemplate,
     sprite->pos1.y += 16 + sprite->centerToCornerVecY;
     sprite->oam.paletteNum = paletteSlot;
     sprite->coordOffsetEnabled = TRUE;
-    sprite->data0 = mapObjectId;
+    sprite->data[0] = mapObjectId;
     mapObject->spriteId = spriteId;
     mapObject->mapobj_bit_12 = graphicsInfo->inanimate;
     if (!mapObject->mapobj_bit_12)
@@ -813,8 +813,8 @@ u8 sprite_new(u8 graphicsId, u8 a1, s16 x, s16 y, u8 z, u8 direction)
             sprite->oam.paletteNum -= 16;
         }
         sprite->coordOffsetEnabled = TRUE;
-        sprite->data0 = a1;
-        sprite->data1 = z;
+        sprite->data[0] = a1;
+        sprite->data[1] = z;
         if (graphicsInfo->paletteSlot == 10)
         {
             npc_load_two_palettes__and_record(graphicsInfo->paletteTag1, graphicsInfo->paletteSlot);
@@ -1003,7 +1003,7 @@ static void sub_808E1B8(u8 mapObjectId, s16 x, s16 y)
         }
         sprite->oam.paletteNum = paletteSlot;
         sprite->coordOffsetEnabled = TRUE;
-        sprite->data0 = mapObjectId;
+        sprite->data[0] = mapObjectId;
         mapObject->spriteId = spriteId;
         if (!mapObject->mapobj_bit_12 && mapObject->animPattern != 0x0b)
         {
@@ -1463,7 +1463,7 @@ u8 AddCameraObject(u8 linkedSpriteId)
 
     spriteId = CreateSprite(&gUnknown_084975D4, 0, 0, 4);
     gSprites[spriteId].invisible = TRUE;
-    gSprites[spriteId].data0 = linkedSpriteId;
+    gSprites[spriteId].data[0] = linkedSpriteId;
     return spriteId;
 }
 
@@ -1472,15 +1472,15 @@ void ObjectCB_CameraObject(struct Sprite *sprite)
     void (*callbacks[ARRAY_COUNT(gUnknown_084975EC)])(struct Sprite *);
 
     memcpy(callbacks, gUnknown_084975EC, sizeof gUnknown_084975EC);
-    callbacks[sprite->data1](sprite);
+    callbacks[sprite->data[1]](sprite);
 }
 
 /*static*/ void CameraObject_0(struct Sprite *sprite)
 {
-    sprite->pos1.x = gSprites[sprite->data0].pos1.x;
-    sprite->pos1.y = gSprites[sprite->data0].pos1.y;
+    sprite->pos1.x = gSprites[sprite->data[0]].pos1.x;
+    sprite->pos1.y = gSprites[sprite->data[0]].pos1.y;
     sprite->invisible = TRUE;
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     CameraObject_1(sprite);
 }
 
@@ -1489,20 +1489,20 @@ void ObjectCB_CameraObject(struct Sprite *sprite)
     s16 x;
     s16 y;
 
-    y = gSprites[sprite->data0].pos1.y;
-    x = gSprites[sprite->data0].pos1.x;
-    sprite->data2 = x - sprite->pos1.x;
-    sprite->data3 = y - sprite->pos1.y;
+    y = gSprites[sprite->data[0]].pos1.y;
+    x = gSprites[sprite->data[0]].pos1.x;
+    sprite->data[2] = x - sprite->pos1.x;
+    sprite->data[3] = y - sprite->pos1.y;
     sprite->pos1.x = x;
     sprite->pos1.y = y;
 }
 
 /*static*/ void CameraObject_2(struct Sprite *sprite)
 {
-    sprite->pos1.x = gSprites[sprite->data0].pos1.x;
-    sprite->pos1.y = gSprites[sprite->data0].pos1.y;
-    sprite->data2 = 0;
-    sprite->data3 = 0;
+    sprite->pos1.x = gSprites[sprite->data[0]].pos1.x;
+    sprite->pos1.y = gSprites[sprite->data[0]].pos1.y;
+    sprite->data[2] = 0;
+    sprite->data[3] = 0;
 }
 
 static struct Sprite *FindCameraObject(void)
@@ -1526,7 +1526,7 @@ void CameraObjectReset1(void)
     cameraObject = FindCameraObject();
     if (cameraObject != NULL)
     {
-        cameraObject->data1 = 0;
+        cameraObject->data[1] = 0;
         cameraObject->callback(cameraObject);
     }
 }
@@ -1538,7 +1538,7 @@ void CameraObjectSetFollowedObjectId(u8 objectId)
     cameraObject = FindCameraObject();
     if (cameraObject != NULL)
     {
-        cameraObject->data0 = objectId;
+        cameraObject->data[0] = objectId;
         CameraObjectReset1();
     }
 }
@@ -1552,12 +1552,12 @@ u8 CameraObjectGetFollowedObjectId(void)
     {
         return MAX_SPRITES;
     }
-    return cameraObject->data0;
+    return cameraObject->data[0];
 }
 
 void CameraObjectReset2(void)
 {
-    FindCameraObject()->data1 = 2;
+    FindCameraObject()->data[1] = 2;
 }
 
 u8 CopySprite(struct Sprite *sprite, s16 x, s16 y, u8 subpriority)
@@ -1818,14 +1818,14 @@ field_object_step(GoRandomDirections, gUnknown_0850D6F4)
 bool8 sub_808F44C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_808F460(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -1836,7 +1836,7 @@ bool8 sub_808F48C(struct MapObject *mapObject, struct Sprite *sprite)
         return FALSE;
     }
     SetFieldObjectStepTimer(sprite, gUnknown_0850D6DC[Random() & 0x03]);
-    sprite->data1 = 3;
+    sprite->data[1] = 3;
     return TRUE;
 }
 
@@ -1844,7 +1844,7 @@ bool8 sub_808F4C8(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -1858,10 +1858,10 @@ bool8 sub_808F4E8(struct MapObject *mapObject, struct Sprite *sprite)
     memcpy(directions, gUnknown_0850D710, sizeof directions);
     chosenDirection = directions[Random() & 0x03];
     FieldObjectSetDirection(mapObject, chosenDirection);
-    sprite->data1 = 5;
+    sprite->data[1] = 5;
     if (npc_block_way__next_tile(mapObject, chosenDirection))
     {
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return TRUE;
 }
@@ -1870,7 +1870,7 @@ bool8 sub_808F534(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetGoSpeed0AnimId(mapObject->placeholder18));
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 6;
+    sprite->data[1] = 6;
     return TRUE;
 }
 
@@ -1879,7 +1879,7 @@ bool8 sub_808F564(struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return FALSE;
 }
@@ -2140,14 +2140,14 @@ field_object_step(LookRandomDirections, gUnknown_0850D740)
 bool8 sub_808F988(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_808F99C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2157,7 +2157,7 @@ bool8 sub_808F9C8(struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6DC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2166,7 +2166,7 @@ bool8 sub_808FA0C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2184,7 +2184,7 @@ bool8 sub_808FA3C(struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x03];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2193,14 +2193,14 @@ field_object_step(RandomlyGoNorthOrSouth, gUnknown_0850D754)
 bool8 sub_808FAC8(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_808FADC(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2211,7 +2211,7 @@ bool8 sub_808FB08(struct MapObject *mapObject, struct Sprite *sprite)
         return FALSE;
     }
     SetFieldObjectStepTimer(sprite, gUnknown_0850D6DC[Random() & 0x03]);
-    sprite->data1 = 3;
+    sprite->data[1] = 3;
     return TRUE;
 }
 
@@ -2219,7 +2219,7 @@ bool8 sub_808FB44(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2233,10 +2233,10 @@ bool8 sub_808FB64(struct MapObject *mapObject, struct Sprite *sprite)
     memcpy(directions, gUnknown_0850D770, sizeof directions);
     direction = directions[Random() & 0x01];
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 5;
+    sprite->data[1] = 5;
     if (npc_block_way__next_tile(mapObject, direction))
     {
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return TRUE;
 }
@@ -2245,7 +2245,7 @@ bool8 sub_808FBB0(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetGoSpeed0AnimId(mapObject->placeholder18));
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 6;
+    sprite->data[1] = 6;
     return TRUE;
 }
 
@@ -2254,7 +2254,7 @@ bool8 sub_808FBE0(struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return FALSE;
 }
@@ -2264,14 +2264,14 @@ field_object_step(RandomlyGoEastOrWest, gUnknown_0850D774)
 bool8 sub_808FC4C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_808FC60(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2282,7 +2282,7 @@ bool8 sub_808FC8C(struct MapObject *mapObject, struct Sprite *sprite)
         return FALSE;
     }
     SetFieldObjectStepTimer(sprite, gUnknown_0850D6DC[Random() & 0x03]);
-    sprite->data1 = 3;
+    sprite->data[1] = 3;
     return TRUE;
 }
 
@@ -2290,7 +2290,7 @@ bool8 sub_808FCC8(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2304,10 +2304,10 @@ bool8 sub_808FCE8(struct MapObject *mapObject, struct Sprite *sprite)
     memcpy(directions, gUnknown_0850D790, sizeof directions);
     direction = directions[Random() & 0x01];
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 5;
+    sprite->data[1] = 5;
     if (npc_block_way__next_tile(mapObject, direction))
     {
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return TRUE;
 }
@@ -2316,7 +2316,7 @@ bool8 sub_808FD34(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetGoSpeed0AnimId(mapObject->placeholder18));
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 6;
+    sprite->data[1] = 6;
     return TRUE;
 }
 
@@ -2325,7 +2325,7 @@ bool8 sub_808FD64(struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return FALSE;
 }
@@ -2336,7 +2336,7 @@ bool8 sub_808FDD0(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2344,7 +2344,7 @@ bool8 sub_808FDFC(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
-        sprite->data1 = 2;
+        sprite->data[1] = 2;
         return TRUE;
     }
     return FALSE;
@@ -2362,17 +2362,17 @@ void FieldObjectCB_BerryTree(struct Sprite *sprite)
 {
     struct MapObject *mapObject;
 
-    mapObject = &gMapObjects[sprite->data0];
-    if (!(sprite->data7 & 0x0001))
+    mapObject = &gMapObjects[sprite->data[0]];
+    if (!(sprite->data[7] & 0x0001))
     {
         get_berry_tree_graphics(mapObject, sprite);
-        sprite->data7 |= 0x0001;
+        sprite->data[7] |= 0x0001;
     }
     FieldObjectStep(mapObject, sprite, FieldObjectCB2_BerryTree);
 }
 static bool8 FieldObjectCB2_BerryTree(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    return gUnknown_0850D7A0[sprite->data1](mapObject, sprite);
+    return gUnknown_0850D7A0[sprite->data[1]](mapObject, sprite);
 }
 
 bool8 do_berry_tree_growth_sparkle_1 (struct MapObject *mapObject, struct Sprite *sprite)
@@ -2385,7 +2385,7 @@ bool8 do_berry_tree_growth_sparkle_1 (struct MapObject *mapObject, struct Sprite
     berryStage = GetStageByBerryTreeId(mapObject->trainerRange_berryTreeId);
     if (berryStage == 0)
     {
-        if (!(sprite->data7 & 0x0004) && sprite->animNum == 4)
+        if (!(sprite->data[7] & 0x0004) && sprite->animNum == 4)
         {
             gFieldEffectArguments[0] = mapObject->coords2.x;
             gFieldEffectArguments[1] = mapObject->coords2.y;
@@ -2401,12 +2401,12 @@ bool8 do_berry_tree_growth_sparkle_1 (struct MapObject *mapObject, struct Sprite
     berryStage --;
     if (sprite->animNum != berryStage)
     {
-        sprite->data1 = 2;
+        sprite->data[1] = 2;
         return TRUE;
     }
     get_berry_tree_graphics(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, 0x39);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2414,7 +2414,7 @@ bool8 sub_808FF48 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
-        sprite->data1 = 0;
+        sprite->data[1] = 0;
         return TRUE;
     }
     return FALSE;
@@ -2423,9 +2423,9 @@ bool8 sub_808FF48 (struct MapObject *mapObject, struct Sprite *sprite)
 bool8 do_berry_tree_growth_sparkle_2 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 3;
-    sprite->data2 = 0;
-    sprite->data7 |= 0x0002;
+    sprite->data[1] = 3;
+    sprite->data[2] = 0;
+    sprite->data[7] |= 0x0002;
     gFieldEffectArguments[0] = mapObject->coords2.x;
     gFieldEffectArguments[1] = mapObject->coords2.y;
     gFieldEffectArguments[2] = sprite->subpriority - 1;
@@ -2436,14 +2436,14 @@ bool8 do_berry_tree_growth_sparkle_2 (struct MapObject *mapObject, struct Sprite
 
 bool8 sub_808FFB4 (struct MapObject *mapObject, struct Sprite *sprite)
 {
-    sprite->data2 ++;
-    mapObject->mapobj_bit_13 = (sprite->data2 & 0x02) >> 1;
+    sprite->data[2] ++;
+    mapObject->mapobj_bit_13 = (sprite->data[2] & 0x02) >> 1;
     sprite->animPaused = TRUE;
-    if (sprite->data2 > 64)
+    if (sprite->data[2] > 64)
     {
         get_berry_tree_graphics(mapObject, sprite);
-        sprite->data1 = 4;
-        sprite->data2 = 0;
+        sprite->data[1] = 4;
+        sprite->data[2] = 0;
         return TRUE;
     }
     return FALSE;
@@ -2451,13 +2451,13 @@ bool8 sub_808FFB4 (struct MapObject *mapObject, struct Sprite *sprite)
 
 bool8 sub_8090004 (struct MapObject *mapObject, struct Sprite *sprite)
 {
-    sprite->data2 ++;
-    mapObject->mapobj_bit_13 = (sprite->data2 & 0x02) >> 1;
+    sprite->data[2] ++;
+    mapObject->mapobj_bit_13 = (sprite->data[2] & 0x02) >> 1;
     sprite->animPaused = TRUE;
-    if (sprite->data2 > 64)
+    if (sprite->data[2] > 64)
     {
-        sprite->data1 = 0;
-        sprite->data7 &= ~0x0002;
+        sprite->data[1] = 0;
+        sprite->data[7] &= ~0x0002;
         return TRUE;
     }
     return FALSE;
@@ -2468,14 +2468,14 @@ field_object_step(RandomlyLookNorthOrSouth, gUnknown_0850D7B4)
 bool8 sub_8090094 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_80900A8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2485,7 +2485,7 @@ bool8 sub_80900D4 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6DC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2494,7 +2494,7 @@ bool8 sub_8090118 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2512,7 +2512,7 @@ bool8 sub_8090148 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x01];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2521,14 +2521,14 @@ field_object_step(RandomlyLookEastOrWest, gUnknown_0850D7C8)
 bool8 sub_80901D4 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_80901E8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2538,7 +2538,7 @@ bool8 sub_8090214 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6DC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2547,7 +2547,7 @@ bool8 sub_8090258 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2565,7 +2565,7 @@ bool8 sub_8090288 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x01];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2574,14 +2574,14 @@ field_object_step(RandomlyLookNorthOrWest, gUnknown_0850D7DC)
 bool8 sub_8090314 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_8090328 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2591,7 +2591,7 @@ bool8 sub_8090354 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2600,7 +2600,7 @@ bool8 sub_8090398 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2618,7 +2618,7 @@ bool8 sub_80903C8 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x01];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2627,14 +2627,14 @@ field_object_step(RandomlyLookNorthOrEast, gUnknown_0850D7F4)
 bool8 sub_8090454 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_8090468 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2644,7 +2644,7 @@ bool8 sub_8090494 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2653,7 +2653,7 @@ bool8 sub_80904D8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2671,7 +2671,7 @@ bool8 sub_8090508 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x01];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2680,14 +2680,14 @@ field_object_step(RandomlyLookSouthOrWest, gUnknown_0850D80C)
 bool8 sub_8090594 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_80905A8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2697,7 +2697,7 @@ bool8 sub_80905D4 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2706,7 +2706,7 @@ bool8 sub_8090618 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2724,7 +2724,7 @@ bool8 sub_8090648 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x01];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2733,14 +2733,14 @@ field_object_step(RandomlyLookSouthOrEast, gUnknown_0850D824)
 bool8 sub_80906D4 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_80906E8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2750,7 +2750,7 @@ bool8 sub_8090714 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2759,7 +2759,7 @@ bool8 sub_8090758 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2777,7 +2777,7 @@ bool8 sub_8090788 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x01];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2786,14 +2786,14 @@ field_object_step(RandomlyLookNorthOrSouthOrWest, gUnknown_0850D83C)
 bool8 sub_8090814 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_8090828 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2803,7 +2803,7 @@ bool8 sub_8090854 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2812,7 +2812,7 @@ bool8 sub_8090898 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2830,7 +2830,7 @@ bool8 sub_80908C8 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x03];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2839,14 +2839,14 @@ field_object_step(RandomlyLookNorthOrSouthOrEast, gUnknown_0850D854)
 bool8 sub_8090954 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_8090968 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2856,7 +2856,7 @@ bool8 sub_8090994 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2865,7 +2865,7 @@ bool8 sub_80909D8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2883,7 +2883,7 @@ bool8 sub_8090A08 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x03];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2892,14 +2892,14 @@ field_object_step(RandomlyLookNorthOrEastOrWest, gUnknown_0850D86C)
 bool8 sub_8090A94 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_8090AA8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2909,7 +2909,7 @@ bool8 sub_8090AD4 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2918,7 +2918,7 @@ bool8 sub_8090B18 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2936,7 +2936,7 @@ bool8 sub_8090B48 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x03];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2945,14 +2945,14 @@ field_object_step(RandomlyLookSouthOrEastOrWest, gUnknown_0850D884)
 bool8 sub_8090BD4 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
 bool8 sub_8090BE8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -2962,7 +2962,7 @@ bool8 sub_8090C14 (struct MapObject *mapObject, struct Sprite *sprite)
     {
         SetFieldObjectStepTimer(sprite, gUnknown_0850D6EC[Random() & 0x03]);
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -2971,7 +2971,7 @@ bool8 sub_8090C58 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 4;
+        sprite->data[1] = 4;
         return TRUE;
     }
     return FALSE;
@@ -2989,7 +2989,7 @@ bool8 sub_8090C88 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[Random() & 0x03];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -2999,7 +2999,7 @@ bool8 sub_8090D14 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3008,7 +3008,7 @@ bool8 sub_8090D40 (struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         SetFieldObjectStepTimer(sprite, 48);
-        sprite->data1 = 2;
+        sprite->data[1] = 2;
     }
     return FALSE;
 }
@@ -3017,7 +3017,7 @@ bool8 sub_8090D64 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -3034,7 +3034,7 @@ bool8 sub_8090D90 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[mapObject->mapobj_unk_18];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 0;
+    sprite->data[1] = 0;
     return TRUE;
 }
 
@@ -3044,7 +3044,7 @@ bool8 sub_8090E18 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3053,7 +3053,7 @@ bool8 sub_8090E44 (struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         SetFieldObjectStepTimer(sprite, 48);
-        sprite->data1 = 2;
+        sprite->data[1] = 2;
     }
     return FALSE;
 }
@@ -3062,7 +3062,7 @@ bool8 sub_8090E68 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (RunFieldObjectStepTimer(sprite) || FieldObjectIsTrainerAndCloseToPlayer(mapObject))
     {
-        sprite->data1 = 3;
+        sprite->data[1] = 3;
     }
     return FALSE;
 }
@@ -3079,7 +3079,7 @@ bool8 sub_8090E94 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = directions[mapObject->mapobj_unk_18];
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 0;
+    sprite->data[1] = 0;
     return TRUE;
 }
 
@@ -3088,7 +3088,7 @@ field_object_step(AlternatelyGoInOppositeDirections, gUnknown_0850D8CC)
 bool8 sub_8090F1C (struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3102,7 +3102,7 @@ bool8 sub_8090F30 (struct MapObject *mapObject, struct Sprite *sprite)
         direction = GetOppositeDirection(direction);
     }
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3131,7 +3131,7 @@ bool8 sub_8090F68 (struct MapObject *mapObject, struct Sprite *sprite)
     }
     FieldObjectSetRegularAnim(mapObject, sprite, animId);
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 3;
+    sprite->data[1] = 3;
     return TRUE;
 }
 
@@ -3140,7 +3140,7 @@ bool8 sub_8091020 (struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return FALSE;
 }
@@ -3148,7 +3148,7 @@ bool8 sub_8091020 (struct MapObject *mapObject, struct Sprite *sprite)
 bool8 sub_8091048(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3177,7 +3177,7 @@ bool8 MoveFieldObjectInNextDirectionInSequence(struct MapObject *mapObject, stru
     }
     FieldObjectSetRegularAnim(mapObject, sprite, animId);
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3186,7 +3186,7 @@ bool8 sub_8091110(struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return FALSE;
 }
@@ -3225,7 +3225,7 @@ bool8 mss_npc_reset_oampriv3_1_unk2_unk3(struct MapObject *mapObject, struct Spr
     {
         mapObject->mapobj_unk_21 = player_get_direction_lower_nybble();
     }
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3243,7 +3243,7 @@ bool8 sub_8091F20(struct MapObject *mapObject, struct Sprite *sprite)
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
         mapObject->mapobj_bit_1 = FALSE;
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
     }
     return FALSE;
 }
@@ -3257,7 +3257,7 @@ bool8 sub_8091F4C(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
 {
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(state_to_direction(gUnknown_085055CD[mapObject->animPattern], mapObject->mapobj_unk_21, playerDirection)));
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3278,7 +3278,7 @@ bool8 sub_8091F94(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
             FieldObjectMoveDestCoords(mapObject, direction, &x, &y);
             FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
             mapObject->mapobj_bit_1 = TRUE;
-            sprite->data1 = 2;
+            sprite->data[1] = 2;
             return TRUE;
         }
     }
@@ -3293,7 +3293,7 @@ bool8 sub_8091F94(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
         FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
     }
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3312,7 +3312,7 @@ bool8 sub_80920A4(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
         FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
     }
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3331,7 +3331,7 @@ bool8 sub_809215C(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
         FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
     }
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3350,7 +3350,7 @@ bool8 sub_8092214(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
         FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
     }
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3362,7 +3362,7 @@ bool8 cph_IM_DIFFERENT(struct MapObject *mapObject, struct Sprite *sprite, u8 pl
     direction = state_to_direction(gUnknown_085055CD[mapObject->animPattern], mapObject->mapobj_unk_21, direction);
     FieldObjectSetRegularAnim(mapObject, sprite, sub_80934BC(direction));
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3381,7 +3381,7 @@ bool8 sub_8092314(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
         FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
     }
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3402,7 +3402,7 @@ bool8 oac_hopping(struct MapObject *mapObject, struct Sprite *sprite, u8 playerD
         FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(direction));
     }
     mapObject->mapobj_bit_1 = TRUE;
-    sprite->data1 = 2;
+    sprite->data[1] = 2;
     return TRUE;
 }
 
@@ -3423,15 +3423,15 @@ void FieldObjectCB_TreeDisguise(struct Sprite *sprite)
 {
     struct MapObject *mapObject;
 
-    mapObject = &gMapObjects[sprite->data0];
-    if (mapObject->mapobj_unk_21 == 0 || (mapObject->mapobj_unk_21 == 1 && !sprite->data7))
+    mapObject = &gMapObjects[sprite->data[0]];
+    if (mapObject->mapobj_unk_21 == 0 || (mapObject->mapobj_unk_21 == 1 && !sprite->data[7]))
     {
         FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
         mapObject->mapobj_unk_1A = FieldEffectStart(FLDEFF_TREE_DISGUISE);
         mapObject->mapobj_unk_21 = 1;
-        sprite->data7 ++;
+        sprite->data[7] ++;
     }
-    FieldObjectStep(&gMapObjects[sprite->data0], sprite, sub_80925AC);
+    FieldObjectStep(&gMapObjects[sprite->data[0]], sprite, sub_80925AC);
 }
 
 bool8 sub_80925AC(struct MapObject *mapObject, struct Sprite *sprite)
@@ -3444,15 +3444,15 @@ void FieldObjectCB_MountainDisguise(struct Sprite *sprite)
 {
     struct MapObject *mapObject;
 
-    mapObject = &gMapObjects[sprite->data0];
-    if (mapObject->mapobj_unk_21 == 0 || (mapObject->mapobj_unk_21 == 1 && !sprite->data7))
+    mapObject = &gMapObjects[sprite->data[0]];
+    if (mapObject->mapobj_unk_21 == 0 || (mapObject->mapobj_unk_21 == 1 && !sprite->data[7]))
     {
         FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
         mapObject->mapobj_unk_1A = FieldEffectStart(FLDEFF_MOUNTAIN_DISGUISE);
         mapObject->mapobj_unk_21 = 1;
-        sprite->data7 ++;
+        sprite->data[7] ++;
     }
-    FieldObjectStep(&gMapObjects[sprite->data0], sprite, sub_80925AC);
+    FieldObjectStep(&gMapObjects[sprite->data[0]], sprite, sub_80925AC);
 }
 
 extern bool8 (*const gUnknown_0850DA9C[])(struct MapObject *, struct Sprite *);
@@ -3460,19 +3460,19 @@ bool8 sub_809268C(struct MapObject *, struct Sprite *);
 
 void FieldObjectCB_Hidden1(struct Sprite *sprite)
 {
-    if (!sprite->data7)
+    if (!sprite->data[7])
     {
-        gMapObjects[sprite->data0].mapobj_bit_26 = TRUE;
+        gMapObjects[sprite->data[0]].mapobj_bit_26 = TRUE;
         sprite->subspriteMode = 2;
         sprite->oam.priority = 3;
-        sprite->data7 ++;
+        sprite->data[7] ++;
     }
-    FieldObjectStep(&gMapObjects[sprite->data0], sprite, sub_809268C);
+    FieldObjectStep(&gMapObjects[sprite->data[0]], sprite, sub_809268C);
 }
 
 bool8 sub_809268C(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    return gUnknown_0850DA9C[sprite->data1](mapObject, sprite);
+    return gUnknown_0850DA9C[sprite->data[1]](mapObject, sprite);
 }
 
 bool8 sub_80926AC (struct MapObject *mapObject, struct Sprite *sprite)
@@ -3484,7 +3484,7 @@ bool8 sub_80926B8 (struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
-        sprite->data1 = 0;
+        sprite->data[1] = 0;
     }
     return FALSE;
 }
@@ -3495,7 +3495,7 @@ bool8 sub_8092718(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetStepInPlaceDelay16AnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3505,7 +3505,7 @@ bool8 sub_8092788(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetStepInPlaceDelay32AnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3515,7 +3515,7 @@ bool8 sub_80927F8(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetStepInPlaceDelay8AnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3525,7 +3525,7 @@ bool8 sub_8092868(struct MapObject *mapObject, struct Sprite *sprite)
 {
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetStepInPlaceDelay4AnimId(mapObject->mapobj_unk_18));
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 
@@ -3536,14 +3536,14 @@ bool8 sub_80928D8(struct MapObject *mapObject, struct Sprite *sprite)
     npc_reset(mapObject, sprite);
     FieldObjectSetRegularAnim(mapObject, sprite, GetFaceDirectionAnimId(mapObject->mapobj_unk_18));
     mapObject->mapobj_bit_13 = TRUE;
-    sprite->data1 = 1;
+    sprite->data[1] = 1;
     return TRUE;
 }
 bool8 sub_809290C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (FieldObjectExecRegularAnim(mapObject, sprite))
     {
-        sprite->data1 = 2;
+        sprite->data[1] = 2;
         return TRUE;
     }
     return FALSE;
@@ -3561,7 +3561,7 @@ void npc_reset(struct MapObject *mapObject, struct Sprite *sprite)
     mapObject->mapobj_bit_6 = FALSE;
     mapObject->mapobj_bit_7 = FALSE;
     mapObject->mapobj_unk_1C = 0xFF;
-    sprite->data1 = 0;
+    sprite->data[1] = 0;
 }
 
 #define dirn2anim(name, table)\
@@ -3680,7 +3680,7 @@ void npc_set_running_behaviour_etc(struct MapObject *mapObject, u8 animPattern)
     mapObject->mapobj_unk_21 = 0;
     mapObject->animId = 0;
     gSprites[mapObject->spriteId].callback = gUnknown_08505438[animPattern];
-    gSprites[mapObject->spriteId].data1 = 0;
+    gSprites[mapObject->spriteId].data[1] = 0;
 }
 
 dirn2anim(npc_running_behaviour_by_direction, gUnknown_0850DB53)
@@ -3811,7 +3811,7 @@ bool8 sub_8092E9C(u8 localId, u8 mapNum, u8 mapGroup)
 {
     u8 mapObjectId;
 
-    if (!TryGetFieldObjectIdByLocalIdAndMap(localId, mapNum, mapGroup, &mapObjectId) && gSprites[gMapObjects[mapObjectId].spriteId].data7 & 0x02)
+    if (!TryGetFieldObjectIdByLocalIdAndMap(localId, mapNum, mapGroup, &mapObjectId) && gSprites[gMapObjects[mapObjectId].spriteId].data[7] & 0x02)
     {
         return TRUE;
     }
@@ -3824,7 +3824,7 @@ void sub_8092EF0(u8 localId, u8 mapNum, u8 mapGroup)
 
     if (!TryGetFieldObjectIdByLocalIdAndMap(localId, mapNum, mapGroup, &mapObjectId))
     {
-        gSprites[gMapObjects[mapObjectId].spriteId].data7 |= 0x04;
+        gSprites[gMapObjects[mapObjectId].spriteId].data[7] |= 0x04;
     }
 }
 
@@ -3975,7 +3975,7 @@ bool8 FieldObjectSetSpecialAnim(struct MapObject *mapObject, u8 specialAnimId)
     mapObject->mapobj_unk_1C = specialAnimId;
     mapObject->mapobj_bit_6 = TRUE;
     mapObject->mapobj_bit_7 = FALSE;
-    gSprites[mapObject->spriteId].data2 = 0;
+    gSprites[mapObject->spriteId].data[2] = 0;
     return FALSE;
 }
 
@@ -3998,8 +3998,8 @@ void FieldObjectClearAnim(struct MapObject *mapObject)
     mapObject->mapobj_unk_1C = 0xFF;
     mapObject->mapobj_bit_6 = FALSE;
     mapObject->mapobj_bit_7 = FALSE;
-    gSprites[mapObject->spriteId].data1 = 0;
-    gSprites[mapObject->spriteId].data2 = 0;
+    gSprites[mapObject->spriteId].data[1] = 0;
+    gSprites[mapObject->spriteId].data[2] = 0;
 }
 
 u8 FieldObjectCheckIfSpecialAnimFinishedOrInactive(struct MapObject *mapObject)
@@ -4137,7 +4137,7 @@ static u32 state_to_direction(u8 a0, u32 a1, u32 a2)
 
 static void FieldObjectExecSpecialAnim(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    if (gUnknown_0850DC50[mapObject->mapobj_unk_1C][sprite->data2](mapObject, sprite))
+    if (gUnknown_0850DC50[mapObject->mapobj_unk_1C][sprite->data[2]](mapObject, sprite))
     {
         mapObject->mapobj_bit_7 = TRUE;
     }
@@ -4145,10 +4145,10 @@ static void FieldObjectExecSpecialAnim(struct MapObject *mapObject, struct Sprit
 
 bool8 FieldObjectExecRegularAnim(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    if (gUnknown_0850DC50[mapObject->mapobj_unk_1C][sprite->data2](mapObject, sprite))
+    if (gUnknown_0850DC50[mapObject->mapobj_unk_1C][sprite->data[2]](mapObject, sprite))
     {
         mapObject->mapobj_unk_1C = 0xFF;
-        sprite->data2 = 0;
+        sprite->data[2] = 0;
         return TRUE;
     }
     return FALSE;
@@ -4157,7 +4157,7 @@ bool8 FieldObjectExecRegularAnim(struct MapObject *mapObject, struct Sprite *spr
 void FieldObjectSetRegularAnim(struct MapObject *mapObject, struct Sprite *sprite, u8 animId)
 {
     mapObject->mapobj_unk_1C = animId;
-    sprite->data2 = 0;
+    sprite->data[2] = 0;
 }
 
 // file boundary?
@@ -4168,7 +4168,7 @@ void an_look_any(struct MapObject *mapObject, struct Sprite *sprite, u8 directio
     npc_coords_shift_still(mapObject);
     obj_npc_animation_step(mapObject, sprite, get_go_image_anim_num(mapObject->mapobj_unk_18));
     sprite->animPaused = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
 }
 
 bool8 sub_8093950(struct MapObject *mapObject, struct Sprite *sprite)
@@ -4212,7 +4212,7 @@ void npc_apply_direction(struct MapObject *mapObject, struct Sprite *sprite, u8
         sprite->animPaused = TRUE;
     }
     mapObject->mapobj_bit_2 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
 }
 
 void do_go_anim(struct MapObject *mapObject, struct Sprite *sprite, u8 direction, u8 speed)
@@ -4255,7 +4255,7 @@ void sub_8093AF0(struct MapObject *mapObject, struct Sprite *sprite, u8 directio
     sub_80976DC(sprite, direction);
     sprite->animPaused = FALSE;
     mapObject->mapobj_bit_2 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
 }
 
 void sub_8093B60(struct MapObject *mapObject, struct Sprite *sprite, u8 direction)
@@ -4287,7 +4287,7 @@ bool8 name##_2(struct MapObject *mapObject, struct Sprite *sprite)\
 {\
     if (fn2(mapObject, sprite))\
     {\
-        sprite->data2 = 2;\
+        sprite->data[2] = 2;\
         return TRUE;\
     }\
     return FALSE;\
@@ -4323,7 +4323,7 @@ void sub_8093FC4(struct MapObject *mapObject, struct Sprite *sprite, u8 directio
     sub_8092F88(direction, &x, &y, displacements[speed], displacements[speed]);
     npc_coords_shift(mapObject, mapObject->coords2.x + x, mapObject->coords2.y + y);
     sub_809783C(sprite, direction, speed, a5);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     sprite->animPaused = 0;
     mapObject->mapobj_bit_2 = 1;
     mapObject->mapobj_bit_4 = 1;
@@ -4345,11 +4345,11 @@ u8 sub_80940C4(struct MapObject *mapObject, struct Sprite *sprite, u8 callback(s
 
     memcpy(displacements, gUnknown_0850DFC2, sizeof gUnknown_0850DFC2);
     result = callback(sprite);
-    if (result == 1 && displacements[sprite->data4] != 0)
+    if (result == 1 && displacements[sprite->data[4]] != 0)
     {
         x = 0;
         y = 0;
-        sub_8092F88(mapObject->placeholder18, &x, &y, displacements[sprite->data4], displacements[sprite->data4]);
+        sub_8092F88(mapObject->placeholder18, &x, &y, displacements[sprite->data[4]], displacements[sprite->data[4]]);
         npc_coords_shift(mapObject, mapObject->coords2.x + x, mapObject->coords2.y + y);
         mapObject->mapobj_bit_2 = TRUE;
         mapObject->mapobj_bit_4 = TRUE;
@@ -4418,7 +4418,7 @@ bool8 name##_2(struct MapObject *mapObject, struct Sprite *sprite)\
     if (fn2(mapObject, sprite))\
     {\
         mapObject->mapobj_bit_22 = FALSE;\
-        sprite->data2 = 2;\
+        sprite->data[2] = 2;\
         return TRUE;\
     }\
     return FALSE;\
@@ -4431,15 +4431,15 @@ maybe_shadow_1_macro(sub_8094338, maybe_shadow_1, sub_80941B0, DIR_EAST,  2, 0)
 
 void sub_8094390(struct Sprite *sprite, u16 duration)
 {
-    sprite->data2 = 1;
-    sprite->data3 = duration;
+    sprite->data[2] = 1;
+    sprite->data[3] = duration;
 }
 
 bool8 sub_8094398(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    if (-- sprite->data3 == 0)
+    if (-- sprite->data[3] == 0)
     {
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
         return TRUE;
     }
     return FALSE;
@@ -4468,15 +4468,15 @@ void sub_8094554(struct MapObject *mapObject, struct Sprite *sprite, u8 directio
     FieldObjectSetDirection(mapObject, direction);
     npc_apply_anim_looping(mapObject, sprite, animNum);
     sprite->animPaused = FALSE;
-    sprite->data2 = 1;
-    sprite->data3 = duration;
+    sprite->data[2] = 1;
+    sprite->data[3] = duration;
 }
 
 bool8 sub_809459C(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    if (-- sprite->data3 == 0)
+    if (-- sprite->data[3] == 0)
     {
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
         sprite->animPaused = TRUE;
         return TRUE;
     }
@@ -4485,7 +4485,7 @@ bool8 sub_809459C(struct MapObject *mapObject, struct Sprite *sprite)
 
 bool8 sub_80945C4(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    if (sprite->data3 & 1)
+    if (sprite->data[3] & 1)
     {
         sprite->animDelayCounter ++;
     }
@@ -4539,7 +4539,7 @@ void npc_set_direction_and_anim__an_proceed(struct MapObject *mapObject, struct
 {
     obj_anim_image_set_and_seek(sprite, animNum, 0);
     FieldObjectSetDirection(mapObject, direction);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
 }
 
 bool8 sub_8094DAC(struct MapObject *mapObject, struct Sprite *sprite)
@@ -4552,7 +4552,7 @@ bool8 sub_8094DC4(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (sub_80979BC(sprite))
     {
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
         return TRUE;
     }
     return FALSE;
@@ -4575,7 +4575,7 @@ bool8 name##_2(struct MapObject *mapObject, struct Sprite *sprite)\
 {\
     if (sub_80941C8(mapObject, sprite))\
     {\
-        sprite->data2 = 2;\
+        sprite->data[2] = 2;\
         mapObject->mapobj_bit_5 = FALSE;\
         return TRUE;\
     }\
@@ -4595,7 +4595,7 @@ bool8 sub_8094F38(struct MapObject *mapObject, struct Sprite *sprite)
     {
         an_look_any(mapObject, sprite, sub_8092AF8(mapObject->coords2.x, mapObject->coords2.y, gMapObjects[mapObjectId].coords2.x, gMapObjects[mapObjectId].coords2.y));
     }
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4607,21 +4607,21 @@ bool8 sub_8094F94(struct MapObject *mapObject, struct Sprite *sprite)
     {
         an_look_any(mapObject, sprite, GetOppositeDirection(sub_8092AF8(mapObject->coords2.x, mapObject->coords2.y, gMapObjects[mapObjectId].coords2.x, gMapObjects[mapObjectId].coords2.y)));
     }
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_8094FF8(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_9 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_8095008(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_9 = FALSE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4653,42 +4653,42 @@ bool8 sub_8095450(struct MapObject *mapObject, struct Sprite *sprite)
 bool8 sub_8095460(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_25 = FALSE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_8095470(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_25 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_8095480(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_12 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_8095490(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_12 = GetFieldObjectGraphicsInfo(mapObject->graphicsId)->inanimate;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_80954BC(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_13 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_80954CC(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_13 = FALSE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4696,7 +4696,7 @@ bool8 do_exclamation_mark_bubble_1(struct MapObject *mapObject, struct Sprite *s
 {
     FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
     FieldEffectStart(FLDEFF_EXCLAMATION_MARK_ICON_1);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4704,7 +4704,7 @@ bool8 do_exclamation_mark_bubble_2(struct MapObject *mapObject, struct Sprite *s
 {
     FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
     FieldEffectStart(FLDEFF_EXCLAMATION_MARK_ICON_2);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4712,7 +4712,7 @@ bool8 do_heart_bubble(struct MapObject *mapObject, struct Sprite *sprite)
 {
     FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
     FieldEffectStart(FLDEFF_HEART_ICON);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4725,11 +4725,11 @@ bool8 sub_8095548(struct MapObject *mapObject, struct Sprite *sprite)
     }
     if (mapObject->animPattern != 0x39 && mapObject->animPattern != 0x3A)
     {
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
         return TRUE;
     }
     sub_8155D78(mapObject);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return sub_809558C(mapObject, sprite);
 }
 
@@ -4737,7 +4737,7 @@ bool8 sub_809558C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (sub_8155DA0(mapObject))
     {
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
         return TRUE;
     }
     return FALSE;
@@ -4746,7 +4746,7 @@ bool8 sub_809558C(struct MapObject *mapObject, struct Sprite *sprite)
 bool8 sub_80955AC(struct MapObject *mapObject, struct Sprite *sprite)
 {
     obj_anim_image_set_and_seek(sprite, 1, 0);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return FALSE;
 }
 
@@ -4755,7 +4755,7 @@ bool8 sub_80955C8(struct MapObject *mapObject, struct Sprite *sprite)
     if (sub_80979BC(sprite))
     {
         SetFieldObjectStepTimer(sprite, 32);
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
     }
     return FALSE;
 }
@@ -4766,7 +4766,7 @@ bool8 sub_80955EC(struct MapObject *mapObject, struct Sprite *sprite)
     if (RunFieldObjectStepTimer(sprite))
     {
         mapObject->mapobj_bit_13 = TRUE;
-        sprite->data2 = 3;
+        sprite->data[2] = 3;
     }
     return FALSE;
 }
@@ -4774,7 +4774,7 @@ bool8 sub_80955EC(struct MapObject *mapObject, struct Sprite *sprite)
 bool8 sub_8095628(struct MapObject *mapObject, struct Sprite *sprite)
 {
     obj_anim_image_set_and_seek(sprite, 1, 0);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return FALSE;
 }
 
@@ -4783,7 +4783,7 @@ bool8 sub_8095644(struct MapObject *mapObject, struct Sprite *sprite)
     if (sub_80979BC(sprite))
     {
         SetFieldObjectStepTimer(sprite, 32);
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
     }
     return FALSE;
 }
@@ -4794,7 +4794,7 @@ bool8 sub_8095668(struct MapObject *mapObject, struct Sprite *sprite)
     if (RunFieldObjectStepTimer(sprite))
     {
         mapObject->mapobj_bit_13 = TRUE;
-        sprite->data2 = 3;
+        sprite->data[2] = 3;
     }
     return FALSE;
 }
@@ -4802,14 +4802,14 @@ bool8 sub_8095668(struct MapObject *mapObject, struct Sprite *sprite)
 bool8 sub_80956A4(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_26 = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
 bool8 sub_80956B4(struct MapObject *mapObject, struct Sprite *sprite)
 {
     mapObject->mapobj_bit_26 = FALSE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -4856,7 +4856,7 @@ bool8 name##_2(struct MapObject *mapObject, struct Sprite *sprite)\
     if (fn2(mapObject, sprite))\
     {\
         sprite->affineAnimPaused = TRUE;\
-        sprite->data2 = 2;\
+        sprite->data[2] = 2;\
         return TRUE;\
     }\
     return FALSE;\
@@ -4873,7 +4873,7 @@ static void sub_80958C0(struct MapObject *mapObject, struct Sprite *sprite, u8 d
     npc_coords_shift_still(mapObject);
     obj_npc_animation_step(mapObject, sprite, sub_80929FC(direction));
     sprite->animPaused = TRUE;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
 }
 
 bool8 sub_8095900(struct MapObject *mapObject, struct Sprite *sprite)
@@ -4941,7 +4941,7 @@ bool8 sub_8095B0C(struct MapObject *mapObject, struct Sprite *sprite)
 bool8 sub_8095B44(struct MapObject *mapObject, struct Sprite *sprite)
 {
     sub_8095AF0(mapObject, sprite);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return sub_8095B64(mapObject, sprite);
 }
 
@@ -4949,7 +4949,7 @@ bool8 sub_8095B64(struct MapObject *mapObject, struct Sprite *sprite)
 {
     if (sub_8095B0C(mapObject, sprite))
     {
-        sprite->data2 = 2;
+        sprite->data[2] = 2;
         return TRUE;
     }
     return FALSE;
@@ -5017,7 +5017,7 @@ an_walk_any_2_macro(sub_8096428, sub_8096330, npc_obj_ministep_stop_on_arrival,
 bool8 sub_8096468(struct MapObject *mapObject, struct Sprite *sprite)
 {
     sub_8097FA4(mapObject);
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -5025,7 +5025,7 @@ bool8 sub_809647C(struct MapObject *mapObject, struct Sprite *sprite)
 {
     sub_8098044(mapObject->mapobj_unk_1B);
     sprite->pos2.y = 0;
-    sprite->data2 = 1;
+    sprite->data[2] = 1;
     return TRUE;
 }
 
@@ -5034,7 +5034,7 @@ bool8 sub_8096494(struct MapObject *mapObject, struct Sprite *sprite)
     if (sprite->pos2.y == 0)
     {
         sub_8098044(mapObject->mapobj_unk_1B);
-        sprite->data2 = 1;
+        sprite->data[2] = 1;
         return TRUE;
     }
     return FALSE;
diff --git a/src/hall_of_fame.c b/src/hall_of_fame.c
index bc7177bd7..af1f9813a 100644
--- a/src/hall_of_fame.c
+++ b/src/hall_of_fame.c
@@ -580,9 +580,9 @@ static void Task_Hof_SetMonDisplayTask(u8 taskId)
     gTasks[taskId].func = Task_Hof_DisplayMon;
 }
 
-#define tDestinationX  data1
-#define tDestinationY  data2
-#define tSpecies       data7
+#define tDestinationX  data[1]
+#define tDestinationY  data[2]
+#define tSpecies       data[7]
 
 static void Task_Hof_DisplayMon(u8 taskId)
 {
@@ -613,7 +613,7 @@ static void Task_Hof_DisplayMon(u8 taskId)
     spriteId = sub_818D3E4(currMon->species, currMon->tid, currMon->personality, 1, xPos, yPos, currMonId, 0xFFFF);
     gSprites[spriteId].tDestinationX = field4;
     gSprites[spriteId].tDestinationY = field6;
-    gSprites[spriteId].data0 = 0;
+    gSprites[spriteId].data[0] = 0;
     gSprites[spriteId].tSpecies = currMon->species;
     gSprites[spriteId].callback = SpriteCB_GetOnScreenAndAnimate;
     gTasks[taskId].tMonSpriteId(currMonId) = spriteId;
@@ -1404,13 +1404,13 @@ static void sub_81751A4(struct Sprite* sprite)
         u8 tableID;
 
         sprite->pos2.y++;
-        sprite->pos2.y += sprite->data1;
+        sprite->pos2.y += sprite->data[1];
 
-        tableID = sprite->data0;
+        tableID = sprite->data[0];
         rand = (Random() % 4) + 8;
         sprite->pos2.x = rand * gSineTable[tableID] / 256;
 
-        sprite->data0 += 4;
+        sprite->data[0] += 4;
     }
 }
 
@@ -1428,9 +1428,9 @@ static bool8 sub_81751FC(void)
     StartSpriteAnim(sprite, Random() % 17);
 
     if (Random() & 3)
-        sprite->data1 = 0;
+        sprite->data[1] = 0;
     else
-        sprite->data1 = 1;
+        sprite->data[1] = 1;
 
     return FALSE;
 }
diff --git a/src/pokemon_summary_screen.c b/src/pokemon_summary_screen.c
index e9cd3e215..e806245a9 100755
--- a/src/pokemon_summary_screen.c
+++ b/src/pokemon_summary_screen.c
@@ -937,7 +937,7 @@ void sub_81C0704(u8 taskId)
         gUnknown_0203CF1C->unk40D3 = sub_81C45F4(&gUnknown_0203CF1C->currentMon, &data[1]);
         if (gUnknown_0203CF1C->unk40D3 == 0xFF)
             return;
-        gSprites[gUnknown_0203CF1C->unk40D3].data2 = 1;
+        gSprites[gUnknown_0203CF1C->unk40D3].data[2] = 1;
         sub_81C0E24();
         data[1] = 0;
         break;
@@ -952,7 +952,7 @@ void sub_81C0704(u8 taskId)
         sub_81C2524();
         break;
     case 12:
-        gSprites[gUnknown_0203CF1C->unk40D3].data2 = 0;
+        gSprites[gUnknown_0203CF1C->unk40D3].data[2] = 0;
         break;
     default:
         if (sub_81221EC() == 0 && FuncIsActiveTask(sub_81C20F0) == 0)
diff --git a/src/region_map.c b/src/region_map.c
index 8c8f64df9..a91119420 100644
--- a/src/region_map.c
+++ b/src/region_map.c
@@ -1332,9 +1332,9 @@ void CreateRegionMapCursor(u16 tileTag, u16 paletteTag)
             gRegionMap->cursorSprite->pos1.x = 8 * gRegionMap->cursorPosX + 4;
             gRegionMap->cursorSprite->pos1.y = 8 * gRegionMap->cursorPosY + 4;
         }
-        gRegionMap->cursorSprite->data1 = 2;
-        gRegionMap->cursorSprite->data2 = (IndexOfSpritePaletteTag(paletteTag) << 4) + 0x101;
-        gRegionMap->cursorSprite->data3 = TRUE;
+        gRegionMap->cursorSprite->data[1] = 2;
+        gRegionMap->cursorSprite->data[2] = (IndexOfSpritePaletteTag(paletteTag) << 4) + 0x101;
+        gRegionMap->cursorSprite->data[3] = TRUE;
     }
 }
 
@@ -1350,12 +1350,12 @@ static void FreeRegionMapCursorSprite(void)
 
 void sub_8124268(void)
 {
-    gRegionMap->cursorSprite->data3 = TRUE;
+    gRegionMap->cursorSprite->data[3] = TRUE;
 }
 
 void sub_8124278(void)
 {
-    gRegionMap->cursorSprite->data3 = FALSE;
+    gRegionMap->cursorSprite->data[3] = FALSE;
 }
 
 void CreateRegionMapPlayerIcon(u16 tileTag, u16 paletteTag)
@@ -1429,17 +1429,17 @@ static void RegionMapPlayerIconSpriteCallback_Zoomed(struct Sprite *sprite)
 {
     sprite->pos2.x = -2 * gRegionMap->scrollX;
     sprite->pos2.y = -2 * gRegionMap->scrollY;
-    sprite->data0 = sprite->pos1.y + sprite->pos2.y + sprite->centerToCornerVecY;
-    sprite->data1 = sprite->pos1.x + sprite->pos2.x + sprite->centerToCornerVecX;
-    if (sprite->data0 < -8 || sprite->data0 > 0xa8 || sprite->data1 < -8 || sprite->data1 > 0xf8)
+    sprite->data[0] = sprite->pos1.y + sprite->pos2.y + sprite->centerToCornerVecY;
+    sprite->data[1] = sprite->pos1.x + sprite->pos2.x + sprite->centerToCornerVecX;
+    if (sprite->data[0] < -8 || sprite->data[0] > 0xa8 || sprite->data[1] < -8 || sprite->data[1] > 0xf8)
     {
-        sprite->data2 = FALSE;
+        sprite->data[2] = FALSE;
     }
     else
     {
-        sprite->data2 = TRUE;
+        sprite->data[2] = TRUE;
     }
-    if (sprite->data2 == TRUE)
+    if (sprite->data[2] == TRUE)
     {
         RegionMapPlayerIconSpriteCallback(sprite);
     }
@@ -1458,9 +1458,9 @@ static void RegionMapPlayerIconSpriteCallback(struct Sprite *sprite)
 {
     if (gRegionMap->blinkPlayerIcon)
     {
-        if (++sprite->data7 > 16)
+        if (++sprite->data[7] > 16)
         {
-            sprite->data7 = 0;
+            sprite->data[7] = 0;
             sprite->invisible = sprite->invisible ? FALSE : TRUE;
         }
     }
@@ -1790,7 +1790,7 @@ static void sub_8124AD4(void)
                 shape += 3;
             }
             StartSpriteAnim(&gSprites[spriteId], shape);
-            gSprites[spriteId].data0 = i;
+            gSprites[spriteId].data[0] = i;
         }
         canFlyFlag++;
     }
@@ -1820,7 +1820,7 @@ static void sub_8124BE4(void)
                 gSprites[spriteId].oam.size = 1;
                 gSprites[spriteId].callback = sub_8124CBC;
                 StartSpriteAnim(&gSprites[spriteId], 6);
-                gSprites[spriteId].data0 = mapSecId;
+                gSprites[spriteId].data[0] = mapSecId;
             }
         }
     }
@@ -1828,17 +1828,17 @@ static void sub_8124BE4(void)
 
 static void sub_8124CBC(struct Sprite *sprite)
 {
-    if (gUnknown_0203A148->regionMap.mapSecId == sprite->data0)
+    if (gUnknown_0203A148->regionMap.mapSecId == sprite->data[0])
     {
-        if (++sprite->data1 > 16)
+        if (++sprite->data[1] > 16)
         {
-            sprite->data1 = 0;
+            sprite->data[1] = 0;
             sprite->invisible = sprite->invisible ? FALSE : TRUE;
         }
     }
     else
     {
-        sprite->data1 = 16;
+        sprite->data[1] = 16;
         sprite->invisible = FALSE;
     }
 }
diff --git a/src/reshow_battle_screen.c b/src/reshow_battle_screen.c
index 962ea0f6e..4ad1971fd 100644
--- a/src/reshow_battle_screen.c
+++ b/src/reshow_battle_screen.c
@@ -263,8 +263,8 @@ static void CreateBankSprite(u8 bank)
             gBankSpriteIds[bank] = CreateSprite(&gUnknown_0202499C, GetBankPosition(bank, 2), posY, sub_80A82E4(bank));
             gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
             gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
-            gSprites[gBankSpriteIds[bank]].data0 = bank;
-            gSprites[gBankSpriteIds[bank]].data2 = GetMonData(&gEnemyParty[gBattlePartyID[bank]], MON_DATA_SPECIES);
+            gSprites[gBankSpriteIds[bank]].data[0] = bank;
+            gSprites[gBankSpriteIds[bank]].data[2] = GetMonData(&gEnemyParty[gBattlePartyID[bank]], MON_DATA_SPECIES);
 
             StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
             if (gBattleSpritesDataPtr->bankData[bank].transformSpecies == SPECIES_CASTFORM)
@@ -278,7 +278,7 @@ static void CreateBankSprite(u8 bank)
                                                  sub_80A82E4(0));
             gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
             gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
-            gSprites[gBankSpriteIds[bank]].data0 = bank;
+            gSprites[gBankSpriteIds[bank]].data[0] = bank;
         }
         else if (gBattleTypeFlags & BATTLE_TYPE_WALLY_TUTORIAL && bank == 0)
         {
@@ -288,7 +288,7 @@ static void CreateBankSprite(u8 bank)
                                                  sub_80A82E4(0));
             gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
             gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
-            gSprites[gBankSpriteIds[bank]].data0 = bank;
+            gSprites[gBankSpriteIds[bank]].data[0] = bank;
         }
         else
         {
@@ -299,8 +299,8 @@ static void CreateBankSprite(u8 bank)
             gBankSpriteIds[bank] = CreateSprite(&gUnknown_0202499C, GetBankPosition(bank, 2), posY, sub_80A82E4(bank));
             gSprites[gBankSpriteIds[bank]].oam.paletteNum = bank;
             gSprites[gBankSpriteIds[bank]].callback = SpriteCallbackDummy;
-            gSprites[gBankSpriteIds[bank]].data0 = bank;
-            gSprites[gBankSpriteIds[bank]].data2 = GetMonData(&gPlayerParty[gBattlePartyID[bank]], MON_DATA_SPECIES);
+            gSprites[gBankSpriteIds[bank]].data[0] = bank;
+            gSprites[gBankSpriteIds[bank]].data[2] = GetMonData(&gPlayerParty[gBattlePartyID[bank]], MON_DATA_SPECIES);
 
             StartSpriteAnim(&gSprites[gBankSpriteIds[bank]], gBattleMonForms[bank]);
             if (gBattleSpritesDataPtr->bankData[bank].transformSpecies == SPECIES_CASTFORM)
diff --git a/src/sprite.c b/src/sprite.c
index daa019019..9db61d2e9 100644
--- a/src/sprite.c
+++ b/src/sprite.c
@@ -168,14 +168,7 @@ static const struct Sprite sDummySprite =
     .animPaused = 0,
     .affineAnimPaused = 0,
     .animLoopCounter = 0,
-    .data0 = 0,
-    .data1 = 0,
-    .data2 = 0,
-    .data3 = 0,
-    .data4 = 0,
-    .data5 = 0,
-    .data6 = 0,
-    .data7 = 0,
+    .data = {0, 0, 0, 0, 0, 0, 0},
     .inUse = 0,
     .coordOffsetEnabled = 0,
     .invisible = 0,
@@ -1075,7 +1068,7 @@ void BeginAffineAnim(struct Sprite *sprite)
         ApplyAffineAnimFrame(matrixNum, &frameCmd);
         sAffineAnimStates[matrixNum].delayCounter = frameCmd.duration;
         if (sprite->flags_f)
-            obj_update_pos2(sprite, sprite->data6, sprite->data7);
+            obj_update_pos2(sprite, sprite->data[6], sprite->data[7]);
     }
 }
 
@@ -1101,7 +1094,7 @@ void ContinueAffineAnim(struct Sprite *sprite)
             sAffineAnimCmdFuncs[funcIndex](matrixNum, sprite);
         }
         if (sprite->flags_f)
-            obj_update_pos2(sprite, sprite->data6, sprite->data7);
+            obj_update_pos2(sprite, sprite->data[6], sprite->data[7]);
     }
 }
 
@@ -1197,8 +1190,8 @@ u8 GetSpriteMatrixNum(struct Sprite *sprite)
 
 void sub_8007E18(struct Sprite* sprite, s16 a2, s16 a3)
 {
-    sprite->data6 = a2;
-    sprite->data7 = a3;
+    sprite->data[6] = a2;
+    sprite->data[7] = a3;
     sprite->flags_f = 1;
 }
 
diff --git a/src/starter_choose.c b/src/starter_choose.c
index 8cf3cfefa..6be362caf 100644
--- a/src/starter_choose.c
+++ b/src/starter_choose.c
@@ -170,20 +170,20 @@ void CB2_ChooseStarter(void)
 
     // Create hand sprite
     spriteId = CreateSprite(&sSpriteTemplate_Hand, 120, 56, 2);
-    gSprites[spriteId].data0 = taskId;
+    gSprites[spriteId].data[0] = taskId;
 
     // Create three Pokeball sprites
     spriteId = CreateSprite(&sSpriteTemplate_PokeBall, sPokeballCoords[0][0], sPokeballCoords[0][1], 2);
-    gSprites[spriteId].data0 = taskId;
-    gSprites[spriteId].data1 = 0;
+    gSprites[spriteId].data[0] = taskId;
+    gSprites[spriteId].data[1] = 0;
 
     spriteId = CreateSprite(&sSpriteTemplate_PokeBall, sPokeballCoords[1][0], sPokeballCoords[1][1], 2);
-    gSprites[spriteId].data0 = taskId;
-    gSprites[spriteId].data1 = 1;
+    gSprites[spriteId].data[0] = taskId;
+    gSprites[spriteId].data[1] = 1;
 
     spriteId = CreateSprite(&sSpriteTemplate_PokeBall, sPokeballCoords[2][0], sPokeballCoords[2][1], 2);
-    gSprites[spriteId].data0 = taskId;
-    gSprites[spriteId].data1 = 2;
+    gSprites[spriteId].data[0] = taskId;
+    gSprites[spriteId].data[1] = 2;
 
     sStarterChooseWindowId = 0xFF;
 }
@@ -363,15 +363,15 @@ static u8 CreatePokemonFrontSprite(u16 species, u8 x, u8 y)
 
 static void sub_81346DC(struct Sprite *sprite)
 {
-    sprite->pos1.x = gUnknown_085B1E28[gTasks[sprite->data0].tStarterSelection][0];
-    sprite->pos1.y = gUnknown_085B1E28[gTasks[sprite->data0].tStarterSelection][1];
-    sprite->pos2.y = Sin(sprite->data1, 8);
-    sprite->data1 = (u8)(sprite->data1) + 4;
+    sprite->pos1.x = gUnknown_085B1E28[gTasks[sprite->data[0]].tStarterSelection][0];
+    sprite->pos1.y = gUnknown_085B1E28[gTasks[sprite->data[0]].tStarterSelection][1];
+    sprite->pos2.y = Sin(sprite->data[1], 8);
+    sprite->data[1] = (u8)(sprite->data[1]) + 4;
 }
 
 static void sub_813473C(struct Sprite *sprite)
 {
-    if (gTasks[sprite->data0].tStarterSelection == sprite->data1)
+    if (gTasks[sprite->data[0]].tStarterSelection == sprite->data[1])
         StartSpriteAnimIfDifferent(sprite, 1);
     else
         StartSpriteAnimIfDifferent(sprite, 0);