diff --git a/asm/battle_1.s b/asm/battle_1.s
index d450df884..9a981e222 100644
--- a/asm/battle_1.s
+++ b/asm/battle_1.s
@@ -1424,8 +1424,8 @@ _0803575A:
 	.pool
 	thumb_func_end ApplyPlayerChosenFrameToBattleMenu
 
-	thumb_func_start LoadFittingBackgroundForBattle
-LoadFittingBackgroundForBattle: @ 8035770
+	thumb_func_start DrawMainBattleBackground
+DrawMainBattleBackground: @ 8035770
 	push {r4,r5,lr}
 	ldr r0, =gBattleTypeFlags
 	ldr r1, [r0]
@@ -1665,7 +1665,7 @@ _08035A8A:
 	pop {r0}
 	bx r0
 	.pool
-	thumb_func_end LoadFittingBackgroundForBattle
+	thumb_func_end DrawMainBattleBackground
 
 	thumb_func_start LoadBattleTextboxAndBackground
 LoadBattleTextboxAndBackground: @ 8035AA4
@@ -1686,7 +1686,7 @@ LoadBattleTextboxAndBackground: @ 8035AA4
 	movs r2, 0x40
 	bl LoadCompressedPalette
 	bl ApplyPlayerChosenFrameToBattleMenu
-	bl LoadFittingBackgroundForBattle
+	bl DrawMainBattleBackground
 	pop {r0}
 	bx r0
 	.pool
diff --git a/include/battle.h b/include/battle.h
index a36fdec23..a7a26e5eb 100644
--- a/include/battle.h
+++ b/include/battle.h
@@ -830,7 +830,7 @@ void LoadBattleTextboxAndBackground(void);
 void LoadBattleEntryBackground(void);
 void ApplyPlayerChosenFrameToBattleMenu(void);
 bool8 LoadChosenBattleElement(u8 caseId);
-void LoadFittingBackgroundForBattle(void);
+void DrawMainBattleBackground(void);
 void task00_0800F6FC(u8 taskId);
 
 // battle_5
diff --git a/include/battle_anim.h b/include/battle_anim.h
index 3345d7de3..f38572d19 100644
--- a/include/battle_anim.h
+++ b/include/battle_anim.h
@@ -39,6 +39,9 @@ struct BattleAnimBackground
 
 #define ANIM_ARGS_COUNT 8
 
+#define PAN_ATTACKER_PLAYER     -64
+#define PAN_ATTACKER_OPPONENT   63
+
 extern void (*gAnimScriptCallback)(void);
 extern bool8 gAnimScriptActive;
 extern u8 gAnimVisualTaskCount;
diff --git a/include/gba/io_reg.h b/include/gba/io_reg.h
index 5234e5b6c..f8c89fdbd 100644
--- a/include/gba/io_reg.h
+++ b/include/gba/io_reg.h
@@ -521,6 +521,8 @@
 #define DISPSTAT_HBLANK_INTR 0x0010 // H-Blank interrupt enabled
 #define DISPSTAT_VCOUNT_INTR 0x0020 // V-Count interrupt enabled
 
+// BLDCNT
+
 // SOUNDCNT_H
 #define SOUND_CGB_MIX_QUARTER 0x0000
 #define SOUND_CGB_MIX_HALF    0x0001
diff --git a/src/battle_anim.c b/src/battle_anim.c
index 13b74a84a..8b858f34a 100644
--- a/src/battle_anim.c
+++ b/src/battle_anim.c
@@ -831,26 +831,24 @@ void sub_80A477C(bool8 to_BG2)
 
 static void task_pA_ma0A_obj_to_bg_pal(u8 taskId)
 {
-    u8 r4;
-    u8 r6;
-    s16 r3;
-    s16 r2;
+    u8 spriteId, palIndex;
+    s16 x, y;
     struct UnknownAnimStruct2 unknownStruct;
 
-    r4 = gTasks[taskId].data[0];
-    r6 = gTasks[taskId].data[6];
+    spriteId = gTasks[taskId].data[0];
+    palIndex = gTasks[taskId].data[6];
     sub_80A6B30(&unknownStruct);
-    r3 = gTasks[taskId].data[1] - (gSprites[r4].pos1.x + gSprites[r4].pos2.x);
-    r2 = gTasks[taskId].data[2] - (gSprites[r4].pos1.y + gSprites[r4].pos2.y);
+    x = gTasks[taskId].data[1] - (gSprites[spriteId].pos1.x + gSprites[spriteId].pos2.x);
+    y = gTasks[taskId].data[2] - (gSprites[spriteId].pos1.y + gSprites[spriteId].pos2.y);
 
     if (gTasks[taskId].data[5] == 0)
     {
         u16 *src;
         u16 *dst;
 
-        gBattle_BG1_X = r3 + gTasks[taskId].data[3];
-        gBattle_BG1_Y = r2 + gTasks[taskId].data[4];
-        src = gPlttBufferFaded + 0x100 + r6 * 16;
+        gBattle_BG1_X = x + gTasks[taskId].data[3];
+        gBattle_BG1_Y = y + gTasks[taskId].data[4];
+        src = gPlttBufferFaded + 0x100 + palIndex * 16;
         dst = gPlttBufferFaded + 0x100 + unknownStruct.unk8 * 16 - 256;
         CpuCopy32(src, dst, 0x20);
     }
@@ -859,9 +857,9 @@ static void task_pA_ma0A_obj_to_bg_pal(u8 taskId)
         u16 *src;
         u16 *dst;
 
-        gBattle_BG2_X = r3 + gTasks[taskId].data[3];
-        gBattle_BG2_Y = r2 + gTasks[taskId].data[4];
-        src = gPlttBufferFaded + 0x100 + r6 * 16;
+        gBattle_BG2_X = x + gTasks[taskId].data[3];
+        gBattle_BG2_Y = y + gTasks[taskId].data[4];
+        src = gPlttBufferFaded + 0x100 + palIndex * 16;
         dst = gPlttBufferFaded + 0x100 - 112;
         CpuCopy32(src, dst, 0x20);
     }
@@ -1232,7 +1230,7 @@ static void LoadDefaultBg(void)
     if (IsContest())
         LoadContestBgAfterMoveAnim();
     else
-        LoadFittingBackgroundForBattle();
+        DrawMainBattleBackground();
 }
 
 static void ScriptCmd_restorebg(void)
@@ -1286,39 +1284,39 @@ s8 BattleAnimAdjustPanning(s8 pan)
     if (!IsContest() && gBattleSpritesDataPtr->healthBoxesData[gAnimBankAttacker].flag_x10)
     {
         if (GetBankSide(gAnimBankAttacker) != SIDE_PLAYER)
-            pan = 63;
+            pan = PAN_ATTACKER_OPPONENT;
         else
-            pan = -64;
+            pan = PAN_ATTACKER_PLAYER;
     }
     else if (IsContest())
     {
-        if (gAnimBankAttacker != gAnimBankTarget || gAnimBankAttacker != 2 || pan != 63)
+        if (gAnimBankAttacker != gAnimBankTarget || gAnimBankAttacker != 2 || pan != PAN_ATTACKER_OPPONENT)
             pan *= -1;
     }
     else if (GetBankSide(gAnimBankAttacker) == SIDE_PLAYER)
     {
         if (GetBankSide(gAnimBankTarget) == SIDE_PLAYER)
         {
-            if (pan == 63)
-                pan = -64;
-            else if (pan != -64)
+            if (pan == PAN_ATTACKER_OPPONENT)
+                pan = PAN_ATTACKER_PLAYER;
+            else if (pan != PAN_ATTACKER_PLAYER)
                 pan *= -1;
         }
     }
     else if (GetBankSide(gAnimBankTarget) == SIDE_OPPONENT)
     {
-        if (pan == -64)
-            pan = 63;
+        if (pan == PAN_ATTACKER_PLAYER)
+            pan = PAN_ATTACKER_OPPONENT;
     }
     else
     {
         pan *= -1;
     }
 
-    if (pan > 63)
-        pan = 63;
-    else if (pan < -64)
-        pan = -64;
+    if (pan > PAN_ATTACKER_OPPONENT)
+        pan = PAN_ATTACKER_OPPONENT;
+    else if (pan < PAN_ATTACKER_PLAYER)
+        pan = PAN_ATTACKER_PLAYER;
 
     return pan;
 }
@@ -1328,9 +1326,9 @@ s8 BattleAnimAdjustPanning2(s8 pan)
     if (!IsContest() && gBattleSpritesDataPtr->healthBoxesData[gAnimBankAttacker].flag_x10)
     {
         if (GetBankSide(gAnimBankAttacker) != SIDE_PLAYER)
-            pan = 63;
+            pan = PAN_ATTACKER_OPPONENT;
         else
-            pan = -64;
+            pan = PAN_ATTACKER_PLAYER;
     }
     else
     {