diff --git a/src/battle_anim_effects_2.c b/src/battle_anim_effects_2.c
index c443a5c01..1add76bf3 100755
--- a/src/battle_anim_effects_2.c
+++ b/src/battle_anim_effects_2.c
@@ -1646,7 +1646,7 @@ void sub_8103CF0(u8 taskId)
     }
     else
     {
-        if ((gBattlerPositions[gBattleAnimTarget] & 1) == 0)
+        if ((gBattlerPositions[gBattleAnimTarget] & BIT_SIDE) == B_SIDE_PLAYER)
         {
             gTasks[taskId].data[4] = 1;
             gBattleAnimArgs[0] = -gBattleAnimArgs[0];
diff --git a/src/battle_controllers.c b/src/battle_controllers.c
index 4b5bb7a8a..acb01c2ea 100644
--- a/src/battle_controllers.c
+++ b/src/battle_controllers.c
@@ -234,16 +234,16 @@ static void InitSinglePlayerBtlControllers(void)
                 gBattleMainFunc = BeginBattleIntro;
 
                 gBattlerControllerFuncs[0] = SetControllerToRecordedPlayer;
-                gBattlerPositions[0] = 0;
+                gBattlerPositions[0] = B_POSITION_PLAYER_LEFT;
 
                 gBattlerControllerFuncs[1] = SetControllerToOpponent;
-                gBattlerPositions[1] = 1;
+                gBattlerPositions[1] = B_POSITION_OPPONENT_LEFT;
 
                 gBattlerControllerFuncs[2] = SetControllerToRecordedPlayer;
-                gBattlerPositions[2] = 2;
+                gBattlerPositions[2] = B_POSITION_PLAYER_RIGHT;
 
                 gBattlerControllerFuncs[3] = SetControllerToOpponent;
-                gBattlerPositions[3] = 3;
+                gBattlerPositions[3] = B_POSITION_OPPONENT_RIGHT;
 
                 gBattlersCount = MAX_BATTLERS_COUNT;
 
@@ -524,12 +524,12 @@ static void InitLinkBtlControllers(void)
                 {
                 case 0:
                 case 3:
-                    gBattlerPositions[gLinkPlayers[i].id] = 0;
+                    gBattlerPositions[gLinkPlayers[i].id] = B_POSITION_PLAYER_LEFT;
                     gBattlerPartyIndexes[gLinkPlayers[i].id] = 0;
                     break;
                 case 1:
                 case 2:
-                    gBattlerPositions[gLinkPlayers[i].id] = 2;
+                    gBattlerPositions[gLinkPlayers[i].id] = B_POSITION_PLAYER_RIGHT;
                     gBattlerPartyIndexes[gLinkPlayers[i].id] = 3;
                     break;
                 }
@@ -544,12 +544,12 @@ static void InitLinkBtlControllers(void)
                     {
                     case 0:
                     case 3:
-                        gBattlerPositions[gLinkPlayers[i].id] = 0;
+                        gBattlerPositions[gLinkPlayers[i].id] = B_POSITION_PLAYER_LEFT;
                         gBattlerPartyIndexes[gLinkPlayers[i].id] = 0;
                         break;
                     case 1:
                     case 2:
-                        gBattlerPositions[gLinkPlayers[i].id] = 2;
+                        gBattlerPositions[gLinkPlayers[i].id] = B_POSITION_PLAYER_RIGHT;
                         gBattlerPartyIndexes[gLinkPlayers[i].id] = 3;
                         break;
                     }
@@ -561,12 +561,12 @@ static void InitLinkBtlControllers(void)
                     {
                     case 0:
                     case 3:
-                        gBattlerPositions[gLinkPlayers[i].id] = 1;
+                        gBattlerPositions[gLinkPlayers[i].id] = B_POSITION_OPPONENT_LEFT;
                         gBattlerPartyIndexes[gLinkPlayers[i].id] = 0;
                         break;
                     case 1:
                     case 2:
-                        gBattlerPositions[gLinkPlayers[i].id] = 3;
+                        gBattlerPositions[gLinkPlayers[i].id] = B_POSITION_OPPONENT_RIGHT;
                         gBattlerPartyIndexes[gLinkPlayers[i].id] = 3;
                         break;
                     }
diff --git a/src/battle_gfx_sfx_util.c b/src/battle_gfx_sfx_util.c
index cdd7e8158..de403aec7 100644
--- a/src/battle_gfx_sfx_util.c
+++ b/src/battle_gfx_sfx_util.c
@@ -779,7 +779,7 @@ bool8 BattleInitAllSprites(u8 *state1, u8 *battlerId)
         break;
     case 4:
         InitBattlerHealthboxCoords(*battlerId);
-        if (gBattlerPositions[*battlerId] <= 1)
+        if (gBattlerPositions[*battlerId] <= B_POSITION_OPPONENT_LEFT)
             DummyBattleInterfaceFunc(gHealthboxSpriteIds[*battlerId], FALSE);
         else
             DummyBattleInterfaceFunc(gHealthboxSpriteIds[*battlerId], TRUE);
diff --git a/src/contest.c b/src/contest.c
index 662a27060..79c1616c2 100644
--- a/src/contest.c
+++ b/src/contest.c
@@ -1217,10 +1217,10 @@ static bool8 SetupContestGraphics(u8 *stateVar)
         CreateApplauseMeterSprite();
         sub_80DC5E8();
         sub_80DC7EC();
-        gBattlerPositions[0] = 0;
-        gBattlerPositions[1] = 1;
-        gBattlerPositions[2] = 3;
-        gBattlerPositions[3] = 2;
+        gBattlerPositions[0] = B_POSITION_PLAYER_LEFT;
+        gBattlerPositions[1] = B_POSITION_OPPONENT_LEFT;
+        gBattlerPositions[2] = B_POSITION_OPPONENT_RIGHT;
+        gBattlerPositions[3] = B_POSITION_PLAYER_RIGHT;
         gBattleTypeFlags = 0;
         gBattlerAttacker = 2;
         gBattlerTarget = 3;
diff --git a/src/fire.c b/src/fire.c
index f87a9e4bb..fdbfb234e 100644
--- a/src/fire.c
+++ b/src/fire.c
@@ -1181,7 +1181,7 @@ void sub_8109DBC(u8 taskId)
 {
     struct Task *task = &gTasks[taskId];
 
-    task->data[12] = !GetBattlerSide(gBattleAnimAttacker) ? B_SIDE_OPPONENT : -1;
+    task->data[12] = !GetBattlerSide(gBattleAnimAttacker) ? 1 : -1;
     task->data[13] = IsBattlerSpriteVisible(gBattleAnimTarget ^ 2) + 1;
     task->data[14] = GetAnimBattlerSpriteId(1);
     task->data[15] = GetAnimBattlerSpriteId(3);
diff --git a/src/ice.c b/src/ice.c
index 4dbf5c4df..522fb1bbf 100644
--- a/src/ice.c
+++ b/src/ice.c
@@ -1190,12 +1190,12 @@ void InitPoisonGasCloudAnim(struct Sprite *sprite)
     if (GetBattlerSpriteCoord(gBattleAnimAttacker, BATTLER_COORD_X_2) < GetBattlerSpriteCoord(gBattleAnimTarget, BATTLER_COORD_X_2))
         sprite->data[7] = 0x8000;
 
-    if (!(gBattlerPositions[gBattleAnimTarget] & 1))
+    if ((gBattlerPositions[gBattleAnimTarget] & BIT_SIDE) == B_SIDE_PLAYER)
     {
         gBattleAnimArgs[1] = -gBattleAnimArgs[1];
         gBattleAnimArgs[3] = -gBattleAnimArgs[3];
 
-        if ((sprite->data[7] & 0x8000) && !(gBattlerPositions[gBattleAnimAttacker] & 1))
+        if ((sprite->data[7] & 0x8000) && (gBattlerPositions[gBattleAnimAttacker] & BIT_SIDE) == B_SIDE_PLAYER)
             sprite->subpriority = gSprites[GetAnimBattlerSpriteId(ANIM_TARGET)].subpriority + 1;
 
         sprite->data[6] = 1;