diff --git a/include/battle_controllers.h b/include/battle_controllers.h
index a338e8707a..be83f5864a 100644
--- a/include/battle_controllers.h
+++ b/include/battle_controllers.h
@@ -336,4 +336,13 @@ void SetControllerToLinkOpponent(u32 battler);
 // link partner
 void SetControllerToLinkPartner(u32 battler);
 
+void TrySetBattlerShadowSpriteCallback(u32 battler);
+
+bool32 TryShinyAnimAfterMonAnimUtil(u32 battler);
+bool32 SwitchIn_ShowSubstituteUtil(u32 battler);
+bool32 SwitchIn_WaitAndEndUtil(u32 battler);
+bool32 SwitchIn_HandleSoundAndEndUtil(u32 battler);
+bool32 SwitchIn_ShowHealthboxUtil(u32 battler);
+bool32 SwitchIn_TryShinyAnimUtil(u32 battler);
+
 #endif // GUARD_BATTLE_CONTROLLERS_H
diff --git a/src/battle_controller_link_opponent.c b/src/battle_controller_link_opponent.c
index 2f4d579996..b9cced954f 100644
--- a/src/battle_controller_link_opponent.c
+++ b/src/battle_controller_link_opponent.c
@@ -280,84 +280,32 @@ static void Intro_TryShinyAnimShowHealthbox(u32 battler)
 
 static void TryShinyAnimAfterMonAnim(u32 battler)
 {
-    if (gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy
-     && gSprites[gBattlerSpriteIds[battler]].x2 == 0)
-    {
-        if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim)
-        {
-            TryShinyAnimation(battler, GetBattlerMon(battler));
-        }
-        else if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim)
-        {
-            gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-            gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-            FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-            FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-            LinkOpponentBufferExecCompleted(battler);
-        }
-    }
+    if (TryShinyAnimAfterMonAnimUtil(battler))
+        LinkOpponentBufferExecCompleted(battler);
 }
 
 static void SwitchIn_ShowSubstitute(u32 battler)
 {
-    if (gSprites[gHealthboxSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
-            InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
-
+    if (SwitchIn_ShowSubstituteUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_HandleSoundAndEnd;
-    }
 }
 
 static void SwitchIn_HandleSoundAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive && !IsCryPlayingOrClearCrySongs())
-    {
-        if (gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy
-            || gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy_2)
-        {
-            m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
-            LinkOpponentBufferExecCompleted(battler);
-        }
-    }
+    if (SwitchIn_HandleSoundAndEndUtil(battler))
+        LinkOpponentBufferExecCompleted(battler);
 }
 
 static void SwitchIn_ShowHealthbox(u32 battler)
 {
-    if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim
-     && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-        gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-
-        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-
-        StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
-
-        UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
-        StartHealthboxSlideIn(battler);
-        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
-        CopyBattleSpriteInvisibility(battler);
+    if (SwitchIn_ShowHealthboxUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowSubstitute;
-    }
 }
 
 static void SwitchIn_TryShinyAnim(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim)
-    {
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-    }
-
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
-        SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
+    if (SwitchIn_TryShinyAnimUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowHealthbox;
-    }
 }
 
 static void LinkOpponentBufferExecCompleted(u32 battler)
diff --git a/src/battle_controller_link_partner.c b/src/battle_controller_link_partner.c
index 7815793ca8..54f42be7ec 100644
--- a/src/battle_controller_link_partner.c
+++ b/src/battle_controller_link_partner.c
@@ -130,60 +130,26 @@ static void WaitForMonAnimAfterLoad(u32 battler)
 
 static void SwitchIn_ShowSubstitute(u32 battler)
 {
-    if (gSprites[gHealthboxSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        CopyBattleSpriteInvisibility(battler);
-        if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
-            InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
-
+    if (SwitchIn_ShowSubstituteUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_WaitAndEnd;
-    }
 }
 
 static void SwitchIn_WaitAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive
-        && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
+    if (SwitchIn_WaitAndEndUtil(battler))
         LinkPartnerBufferExecCompleted(battler);
-    }
 }
 
 static void SwitchIn_ShowHealthbox(u32 battler)
 {
-    if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim)
-    {
-        gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-        gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-
-        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-
-        CreateTask(Task_PlayerController_RestoreBgmAfterCry, 10);
-        HandleLowHpMusicChange(GetBattlerMon(battler), battler);
-        StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
-        UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
-        StartHealthboxSlideIn(battler);
-        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
-
+    if (SwitchIn_ShowHealthboxUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowSubstitute;
-    }
 }
 
 static void SwitchIn_TryShinyAnim(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-    }
-
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
+    if (SwitchIn_TryShinyAnimUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowHealthbox;
-    }
 }
 
 static void LinkPartnerBufferExecCompleted(u32 battler)
diff --git a/src/battle_controller_opponent.c b/src/battle_controller_opponent.c
index 9b24833965..908d2eca8e 100644
--- a/src/battle_controller_opponent.c
+++ b/src/battle_controller_opponent.c
@@ -212,19 +212,6 @@ static void Intro_WaitForShinyAnimAndHealthbox(u32 battler)
     }
 }
 
-static void TrySetBattlerShadowSpriteCallback(u32 battler)
-{
-    if (gSprites[gBattleSpritesDataPtr->healthBoxesData[battler].shadowSpriteIdPrimary].callback == SpriteCallbackDummy)
-    {
-        if (B_ENEMY_MON_SHADOW_STYLE <= GEN_3
-            || P_GBA_STYLE_SPECIES_GFX == TRUE
-            || gSprites[gBattleSpritesDataPtr->healthBoxesData[battler].shadowSpriteIdSecondary].callback == SpriteCallbackDummy)
-        {
-            SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
-        }
-    }
-}
-
 static void Intro_TryShinyAnimShowHealthbox(u32 battler)
 {
     bool32 bgmRestored = FALSE;
@@ -343,58 +330,26 @@ static void TryShinyAnimAfterMonAnim(u32 battler)
 
 static void SwitchIn_ShowSubstitute(u32 battler)
 {
-    if (gSprites[gHealthboxSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
-            InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
+    if (SwitchIn_ShowSubstituteUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_HandleSoundAndEnd;
-    }
 }
 
 static void SwitchIn_HandleSoundAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive && !IsCryPlayingOrClearCrySongs())
-    {
-        if (gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy
-         || gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy_2)
-        {
-            m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
-            OpponentBufferExecCompleted(battler);
-        }
-    }
+    if (SwitchIn_HandleSoundAndEndUtil(battler))
+        OpponentBufferExecCompleted(battler);
 }
 
 static void SwitchIn_ShowHealthbox(u32 battler)
 {
-    if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim
-     && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-        gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-        StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
-        UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
-        StartHealthboxSlideIn(battler);
-        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
-        CopyBattleSpriteInvisibility(battler);
+    if (SwitchIn_ShowHealthboxUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowSubstitute;
-    }
 }
 
 static void SwitchIn_TryShinyAnim(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
-        SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
+    if (SwitchIn_TryShinyAnimUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowHealthbox;
-    }
 }
 
 static void OpponentBufferExecCompleted(u32 battler)
diff --git a/src/battle_controller_player.c b/src/battle_controller_player.c
index 2acf9ebb5f..54ca464d64 100644
--- a/src/battle_controller_player.c
+++ b/src/battle_controller_player.c
@@ -1384,10 +1384,8 @@ static void SwitchIn_CleanShinyAnimShowSubstitute(u32 battler)
 
 static void SwitchIn_HandleSoundAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive
-        && !IsCryPlayingOrClearCrySongs())
+    if (SwitchIn_HandleSoundAndEndUtil(battler))
     {
-        m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
         HandleLowHpMusicChange(GetBattlerMon(battler), battler);
         PlayerBufferExecCompleted(battler);
     }
@@ -1395,16 +1393,8 @@ static void SwitchIn_HandleSoundAndEnd(u32 battler)
 
 static void SwitchIn_TryShinyAnimShowHealthbox(u32 battler)
 {
-    // Start shiny animation if applicable
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-
-    // Wait for ball anim, then show healthbox
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
+    if (SwitchIn_TryShinyAnimUtil(battler))
     {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
         UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
         StartHealthboxSlideIn(battler);
         SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
diff --git a/src/battle_controller_player_partner.c b/src/battle_controller_player_partner.c
index ed3cb9db0b..182b86db88 100644
--- a/src/battle_controller_player_partner.c
+++ b/src/battle_controller_player_partner.c
@@ -202,60 +202,26 @@ static void WaitForMonAnimAfterLoad(u32 battler)
 
 static void SwitchIn_ShowSubstitute(u32 battler)
 {
-    if (gSprites[gHealthboxSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        CopyBattleSpriteInvisibility(battler);
-        if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
-            InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
-
+    if (SwitchIn_ShowSubstituteUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_WaitAndEnd;
-    }
 }
 
 static void SwitchIn_WaitAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive
-        && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
+    if (SwitchIn_WaitAndEndUtil(battler))
         PlayerPartnerBufferExecCompleted(battler);
-    }
 }
 
 static void SwitchIn_ShowHealthbox(u32 battler)
 {
-    if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim)
-    {
-        gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-        gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-
-        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-
-        CreateTask(Task_PlayerController_RestoreBgmAfterCry, 10);
-        HandleLowHpMusicChange(GetBattlerMon(battler), battler);
-        StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
-        UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
-        StartHealthboxSlideIn(battler);
-        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
-
+    if (SwitchIn_ShowHealthboxUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowSubstitute;
-    }
 }
 
 static void SwitchIn_TryShinyAnim(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-    }
-
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
+    if (SwitchIn_TryShinyAnimUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowHealthbox;
-    }
 }
 
 static void PlayerPartnerBufferExecCompleted(u32 battler)
diff --git a/src/battle_controller_recorded_opponent.c b/src/battle_controller_recorded_opponent.c
index 7cfd74c057..8223566f1b 100644
--- a/src/battle_controller_recorded_opponent.c
+++ b/src/battle_controller_recorded_opponent.c
@@ -196,20 +196,6 @@ static void Intro_WaitForShinyAnimAndHealthbox(u32 battler)
     }
 }
 
-static void TrySetBattlerShadowSpriteCallback(u32 battler)
-{
-
-    if (gSprites[gBattleSpritesDataPtr->healthBoxesData[battler].shadowSpriteIdPrimary].callback == SpriteCallbackDummy)
-    {
-        if (B_ENEMY_MON_SHADOW_STYLE <= GEN_3
-            || P_GBA_STYLE_SPECIES_GFX == TRUE
-            || gSprites[gBattleSpritesDataPtr->healthBoxesData[battler].shadowSpriteIdSecondary].callback == SpriteCallbackDummy)
-        {
-            SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
-        }
-    }
-}
-
 static void Intro_TryShinyAnimShowHealthbox(u32 battler)
 {
     bool32 bgmRestored = FALSE;
@@ -302,86 +288,32 @@ static void Intro_TryShinyAnimShowHealthbox(u32 battler)
 
 static void TryShinyAnimAfterMonAnim(u32 battler)
 {
-    if (gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy
-     && gSprites[gBattlerSpriteIds[battler]].x2 == 0)
-    {
-        if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim)
-        {
-            TryShinyAnimation(battler, GetBattlerMon(battler));
-        }
-        else
-        {
-            if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim)
-            {
-                gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-                gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-                FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-                FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-                RecordedOpponentBufferExecCompleted(battler);
-            }
-        }
-    }
+    if (TryShinyAnimAfterMonAnimUtil(battler))
+        RecordedOpponentBufferExecCompleted(battler);
 }
 
 static void SwitchIn_ShowSubstitute(u32 battler)
 {
-    if (gSprites[gHealthboxSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
-            InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
-
+    if (SwitchIn_ShowSubstituteUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_HandleSoundAndEnd;
-    }
 }
 
 static void SwitchIn_HandleSoundAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive
-        && !IsCryPlayingOrClearCrySongs())
-    {
-        if (gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy
-            || gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy_2)
-        {
-            m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
-            RecordedOpponentBufferExecCompleted(battler);
-        }
-    }
+    if (SwitchIn_HandleSoundAndEndUtil(battler))
+        RecordedOpponentBufferExecCompleted(battler);
 }
 
 static void SwitchIn_ShowHealthbox(u32 battler)
 {
-    if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim
-     && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-        gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-
-        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-
-        StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
-
-        UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
-        StartHealthboxSlideIn(battler);
-        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
-        CopyBattleSpriteInvisibility(battler);
+    if (SwitchIn_ShowHealthboxUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowSubstitute;
-    }
 }
 
 static void SwitchIn_TryShinyAnim(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim)
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-        && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
-        SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
+    if (SwitchIn_TryShinyAnimUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowHealthbox;
-    }
 }
 
 static void RecordedOpponentHandleLoadMonSprite(u32 battler)
diff --git a/src/battle_controller_recorded_player.c b/src/battle_controller_recorded_player.c
index bf7b6c03d4..9249bbded1 100644
--- a/src/battle_controller_recorded_player.c
+++ b/src/battle_controller_recorded_player.c
@@ -279,60 +279,26 @@ static void WaitForMonAnimAfterLoad(u32 battler)
 
 static void SwitchIn_ShowSubstitute(u32 battler)
 {
-    if (gSprites[gHealthboxSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
-        CopyBattleSpriteInvisibility(battler);
-        if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
-            InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
-
+    if (SwitchIn_ShowSubstituteUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_WaitAndEnd;
-    }
 }
 
 static void SwitchIn_WaitAndEnd(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive
-        && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy)
-    {
+    if (SwitchIn_WaitAndEndUtil(battler))
         RecordedPlayerBufferExecCompleted(battler);
-    }
 }
 
 static void SwitchIn_ShowHealthbox(u32 battler)
 {
-    if (gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim)
-    {
-        gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
-        gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
-
-        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
-        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
-
-        CreateTask(Task_PlayerController_RestoreBgmAfterCry, 10);
-        HandleLowHpMusicChange(GetBattlerMon(battler), battler);
-        StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
-        UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
-        StartHealthboxSlideIn(battler);
-        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
-
+    if (SwitchIn_ShowHealthboxUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowSubstitute;
-    }
 }
 
 static void SwitchIn_TryShinyAnim(u32 battler)
 {
-    if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        TryShinyAnimation(battler, GetBattlerMon(battler));
-    }
-
-    if (gSprites[gBattleControllerData[battler]].callback == SpriteCallbackDummy
-     && !gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
-    {
-        DestroySprite(&gSprites[gBattleControllerData[battler]]);
+    if (SwitchIn_TryShinyAnimUtil(battler))
         gBattlerControllerFuncs[battler] = SwitchIn_ShowHealthbox;
-    }
 }
 
 static void RecordedPlayerBufferExecCompleted(u32 battler)
diff --git a/src/battle_controllers.c b/src/battle_controllers.c
index ed6a95ef8d..0dbc123da9 100644
--- a/src/battle_controllers.c
+++ b/src/battle_controllers.c
@@ -14,6 +14,7 @@
 #include "event_object_movement.h"
 #include "link.h"
 #include "link_rfu.h"
+#include "m4a.h"
 #include "palette.h"
 #include "party_menu.h"
 #include "recorded_battle.h"
@@ -3081,3 +3082,115 @@ static u32 ReturnAnimIdForBattler(bool32 wasPlayerSideKnockedOut, u32 specificBa
         return GetSpeciesBackAnimSet(species);
 }
 
+void TrySetBattlerShadowSpriteCallback(u32 battler)
+{
+    if (gSprites[gBattleSpritesDataPtr->healthBoxesData[battler].shadowSpriteIdPrimary].callback == SpriteCallbackDummy
+     && (B_ENEMY_MON_SHADOW_STYLE <= GEN_3 || P_GBA_STYLE_SPECIES_GFX == TRUE
+      || gSprites[gBattleSpritesDataPtr->healthBoxesData[battler].shadowSpriteIdSecondary].callback == SpriteCallbackDummy))
+        SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
+}
+
+bool32 TryShinyAnimAfterMonAnimUtil(u32 battler)
+{
+    if (gSprites[gBattlerSpriteIds[battler]].callback != SpriteCallbackDummy
+     || gSprites[gBattlerSpriteIds[battler]].x2 != 0)
+        return FALSE;
+    
+    if (!gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim)
+    {
+        TryShinyAnimation(battler, GetBattlerMon(battler));
+        return FALSE;
+    }
+
+    if (!gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim)
+        return FALSE;
+
+    gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
+    gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
+    FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
+    FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
+
+    return TRUE;
+}
+
+bool32 SwitchIn_ShowSubstituteUtil(u32 battler)
+{
+    if (gSprites[gHealthboxSpriteIds[battler]].callback != SpriteCallbackDummy)
+        return FALSE;
+
+    if (GetBattlerSide(battler) == B_SIDE_PLAYER)
+        CopyBattleSpriteInvisibility(battler);
+
+    if (gBattleSpritesDataPtr->battlerData[battler].behindSubstitute)
+        InitAndLaunchSpecialAnimation(battler, battler, battler, B_ANIM_MON_TO_SUBSTITUTE);
+
+    return TRUE;
+}
+
+bool32 SwitchIn_WaitAndEndUtil(u32 battler)
+{
+    return !gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive
+        && gSprites[gBattlerSpriteIds[battler]].callback == SpriteCallbackDummy;
+}
+
+bool32 SwitchIn_HandleSoundAndEndUtil(u32 battler)
+{
+    if (gBattleSpritesDataPtr->healthBoxesData[battler].specialAnimActive || IsCryPlayingOrClearCrySongs())
+        return FALSE;
+    
+    if (gSprites[gBattlerSpriteIds[battler]].callback != SpriteCallbackDummy
+     && gSprites[gBattlerSpriteIds[battler]].callback != SpriteCallbackDummy_2
+     && GetBattlerSide(battler) == B_SIDE_OPPONENT)
+        return FALSE;
+
+    m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
+    return TRUE;
+}
+
+bool32 SwitchIn_ShowHealthboxUtil(u32 battler)
+{
+    u32 side = GetBattlerSide(battler);
+
+    if (!gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim
+    || (side == B_SIDE_OPPONENT && gSprites[gBattlerSpriteIds[battler]].callback != SpriteCallbackDummy))
+        return FALSE;
+
+    gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim = FALSE;
+    gBattleSpritesDataPtr->healthBoxesData[battler].finishedShinyMonAnim = FALSE;
+    FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
+    FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);
+
+    if (side == B_SIDE_PLAYER)
+    {
+        CreateTask(Task_PlayerController_RestoreBgmAfterCry, 10);
+        HandleLowHpMusicChange(GetBattlerMon(battler), battler);
+    }
+
+    StartSpriteAnim(&gSprites[gBattlerSpriteIds[battler]], 0);
+    UpdateHealthboxAttribute(gHealthboxSpriteIds[battler], GetBattlerMon(battler), HEALTHBOX_ALL);
+    StartHealthboxSlideIn(battler);
+    SetHealthboxSpriteVisible(gHealthboxSpriteIds[battler]);
+
+    if (side == B_SIDE_OPPONENT)
+        CopyBattleSpriteInvisibility(battler);
+
+    return TRUE;
+}
+
+bool32 SwitchIn_TryShinyAnimUtil(u32 battler)
+{
+    if (!gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive
+     && !gBattleSpritesDataPtr->healthBoxesData[battler].triedShinyMonAnim)
+        TryShinyAnimation(battler, GetBattlerMon(battler));
+
+    if (gSprites[gBattleControllerData[battler]].callback != SpriteCallbackDummy
+     || gBattleSpritesDataPtr->healthBoxesData[battler].ballAnimActive)
+        return FALSE;
+
+    DestroySprite(&gSprites[gBattleControllerData[battler]]);
+
+    if (GetBattlerSide(battler) == B_SIDE_OPPONENT)
+        SetBattlerShadowSpriteCallback(battler, GetMonData(GetBattlerMon(battler), MON_DATA_SPECIES));
+
+    return TRUE;
+}