diff --git a/asm/macros/battle_script.inc b/asm/macros/battle_script.inc
index 689cd8855a..7db4856fad 100644
--- a/asm/macros/battle_script.inc
+++ b/asm/macros/battle_script.inc
@@ -1497,6 +1497,11 @@
 	.4byte \ptr
 	.endm
 	
+	.macro jumpifcantusesynchronoise ptr
+	various BS_ATTACKER, VARIOUS_TRY_SYNCHRONOISE
+	.4byte \ptr
+	.endm
+	
 	.macro trycopycat ptr
 	various BS_ATTACKER, VARIOUS_TRY_COPYCAT
 	.4byte \ptr
diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 1f487d87a7..125b077f28 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -319,6 +319,59 @@ gBattleScriptsForMoveEffects:: @ 82D86A8
 	.4byte BattleScript_EffectCopycat
 	.4byte BattleScript_EffectDefog
 	.4byte BattleScript_EffectHitEnemyHealAlly
+	.4byte BattleScript_EffectSmackDown
+	.4byte BattleScript_EffectSynchronoise
+	
+BattleScript_EffectSynchronoise:
+	attackcanceler
+	attackstring
+	ppreduce
+	selectfirstvalidtarget
+BattleScript_SynchronoiseLoop:
+	movevaluescleanup
+	jumpifcantusesynchronoise BattleScript_SynchronoiseNoEffect
+	accuracycheck BattleScript_SynchronoiseMissed, ACC_CURR_MOVE
+	critcalc
+	damagecalc
+	adjustdamage
+	attackanimation
+	waitanimation
+	effectivenesssound
+	hitanimation BS_TARGET
+	waitstate
+	healthbarupdate BS_TARGET
+	datahpupdate BS_TARGET
+	critmessage
+	waitmessage 0x40
+	resultmessage
+	waitmessage 0x40
+	printstring STRINGID_EMPTYSTRING3
+	waitmessage 0x1
+	tryfaintmon BS_TARGET, FALSE, NULL
+BattleScript_SynchronoiseMoveTargetEnd:
+	setbyte sMOVEEND_STATE, 0x0
+	moveend 0x2, 0x10
+	jumpifnexttargetvalid BattleScript_SynchronoiseLoop
+	end
+BattleScript_SynchronoiseMissed:
+	pause 0x20
+	resultmessage
+	waitmessage 0x40
+	goto BattleScript_SynchronoiseMoveTargetEnd
+BattleScript_SynchronoiseNoEffect:
+	pause 0x20
+	printstring STRINGID_NOEFFECTONTARGET
+	waitmessage 0x40
+	goto BattleScript_SynchronoiseMoveTargetEnd
+	
+BattleScript_EffectSmackDown:
+	setmoveeffect MOVE_EFFECT_SMACK_DOWN
+	goto BattleScript_EffectHit
+	
+BattleScript_MoveEffectSmackDown::
+	printstring STRINGID_FELLSTRAIGHTDOWN
+	waitmessage 0x40
+	return
 	
 BattleScript_EffectHitEnemyHealAlly:
 	jumpiftargetally BattleScript_EffectHealPulse
diff --git a/include/battle_scripts.h b/include/battle_scripts.h
index 4370504e75..e96babfb5f 100644
--- a/include/battle_scripts.h
+++ b/include/battle_scripts.h
@@ -278,5 +278,6 @@ extern const u8 BattleScript_EffectWithChance[];
 extern const u8 BattleScript_MoveEffectClearSmog[];
 extern const u8 BattleScript_ForceRandomSwitch[];
 extern const u8 BattleScript_SideStatusWoreOffReturn[];
+extern const u8 BattleScript_MoveEffectSmackDown[];
 
 #endif // GUARD_BATTLE_SCRIPTS_H
diff --git a/include/battle_util.h b/include/battle_util.h
index 727f9d07f3..3f14bd59f3 100644
--- a/include/battle_util.h
+++ b/include/battle_util.h
@@ -91,5 +91,6 @@ s32 GetStealthHazardDamage(u8 hazardType, u8 battlerId);
 u16 GetMegaEvolutionSpecies(u16 preEvoSpecies, u16 heldItemId);
 bool32 CanMegaEvolve(u8 battlerId);
 void UndoMegaEvolution(u8 monId);
+bool32 DoBattlersShareType(u32 battler1, u32 battler2);
 
 #endif // GUARD_BATTLE_UTIL_H
diff --git a/include/constants/battle.h b/include/constants/battle.h
index a583da05ca..0e61152450 100644
--- a/include/constants/battle.h
+++ b/include/constants/battle.h
@@ -314,7 +314,7 @@
 #define MOVE_EFFECT_RECOIL_50           0x39
 #define MOVE_EFFECT_CLEAR_SMOG          0x3A
 #define MOVE_EFFECT_SP_ATK_TWO_DOWN     0x3B
-#define MOVE_EFFECT_NOTHING_3C          0x3C
+#define MOVE_EFFECT_SMACK_DOWN          0x3C
 #define MOVE_EFFECT_NOTHING_3D          0x3D
 #define MOVE_EFFECT_NOTHING_3E          0x3E
 #define MOVE_EFFECT_NOTHING_3F          0x3F
diff --git a/include/constants/battle_move_effects.h b/include/constants/battle_move_effects.h
index fb641e3299..b2d3788012 100644
--- a/include/constants/battle_move_effects.h
+++ b/include/constants/battle_move_effects.h
@@ -308,5 +308,7 @@
 #define EFFECT_COPYCAT 302
 #define EFFECT_DEFOG 303
 #define EFFECT_HIT_ENEMY_HEAL_ALLY 304 // Pollen Puff
+#define EFFECT_SMACK_DOWN 305
+#define EFFECT_SYNCHRONOISE 306
 
 #endif  // GUARD_CONSTANTS_BATTLE_MOVE_EFFECTS_H
diff --git a/include/constants/battle_script_commands.h b/include/constants/battle_script_commands.h
index 518c6a1036..96503f298d 100644
--- a/include/constants/battle_script_commands.h
+++ b/include/constants/battle_script_commands.h
@@ -110,6 +110,7 @@
 #define VARIOUS_ABILITY_POPUP					57
 #define VARIOUS_DEFOG							58
 #define VARIOUS_JUMP_IF_TARGET_ALLY				59
+#define VARIOUS_TRY_SYNCHRONOISE				60
 
 // atk80, dmg manipulation
 #define ATK80_DMG_CHANGE_SIGN                               0
diff --git a/include/constants/battle_string_ids.h b/include/constants/battle_string_ids.h
index 1c4e489751..ba44bdeb1e 100644
--- a/include/constants/battle_string_ids.h
+++ b/include/constants/battle_string_ids.h
@@ -507,6 +507,7 @@
 #define	STRINGID_DRASTICALLY 504
 #define	STRINGID_SEVERELY 505
 #define	STRINGID_INFESTATION 506
+#define	STRINGID_NOEFFECTONTARGET 507
 
 #define BATTLESTRINGS_COUNT     519
 
diff --git a/src/battle_interface.c b/src/battle_interface.c
index 69d38fc50a..f0a3af8420 100644
--- a/src/battle_interface.c
+++ b/src/battle_interface.c
@@ -3183,8 +3183,8 @@ static void SpriteCb_AbilityPopUp(struct Sprite *sprite)
     {
         if (sprite->tIsMain && ++sprite->tFrames == 4)
             PlaySE(SE_SELECT);
-        if ((!sprite->tRightToLeft && (sprite->pos1.x -= 3) <= sprite->tOriginalX)
-            || (sprite->tRightToLeft && (sprite->pos1.x += 3) >= sprite->tOriginalX)
+        if ((!sprite->tRightToLeft && (sprite->pos1.x -= 4) <= sprite->tOriginalX)
+            || (sprite->tRightToLeft && (sprite->pos1.x += 4) >= sprite->tOriginalX)
            )
         {
             sprite->pos1.x = sprite->tOriginalX;
@@ -3196,8 +3196,8 @@ static void SpriteCb_AbilityPopUp(struct Sprite *sprite)
     {
         if (sprite->tFrames == 0)
         {
-            if ((!sprite->tRightToLeft && (sprite->pos1.x += 3) >= sprite->tOriginalX + ABILITY_POP_UP_POS_X_SLIDE)
-                ||(sprite->tRightToLeft && (sprite->pos1.x -= 3) <= sprite->tOriginalX - ABILITY_POP_UP_POS_X_SLIDE)
+            if ((!sprite->tRightToLeft && (sprite->pos1.x += 4) >= sprite->tOriginalX + ABILITY_POP_UP_POS_X_SLIDE)
+                ||(sprite->tRightToLeft && (sprite->pos1.x -= 4) <= sprite->tOriginalX - ABILITY_POP_UP_POS_X_SLIDE)
                )
             {
                 gBattleStruct->activeAbilityPopUps &= ~(gBitTable[sprite->tBattlerId]);
diff --git a/src/battle_message.c b/src/battle_message.c
index d5bbbebcc8..22a32638a6 100644
--- a/src/battle_message.c
+++ b/src/battle_message.c
@@ -648,6 +648,7 @@ static const u8 sText_MegaEvoEvolved[] = _("{B_ATK_NAME_WITH_PREFIX} has Mega\nE
 static const u8 sText_drastically[] = _("drastically ");
 static const u8 sText_severely[] = _("severely ");
 static const u8 sText_Infestation[] = _("{B_DEF_NAME_WITH_PREFIX} has been afflicted\nwith an infestation by {B_ATK_NAME_WITH_PREFIX}!");
+static const u8 sText_NoEffectOnTarget[] = _("It had no effect\non {B_DEF_NAME_WITH_PREFIX}!");
 
 const u8 *const gBattleStringsTable[BATTLESTRINGS_COUNT] =
 {
@@ -1147,6 +1148,7 @@ const u8 *const gBattleStringsTable[BATTLESTRINGS_COUNT] =
     sText_drastically,
     sText_severely,
     sText_Infestation,
+    sText_NoEffectOnTarget,
 };
 
 const u16 gTerrainStringIds[] =
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 4a41b34ad4..e1e58616ad 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -2702,6 +2702,15 @@ void SetMoveEffect(bool8 primary, u8 certain)
                     gBattlescriptCurrInstr = BattleScript_MoveEffectClearSmog;
                 }
                 break;
+            case MOVE_EFFECT_SMACK_DOWN:
+                if (!IsBattlerGrounded(gBattlerTarget))
+                {
+                    gStatuses3[gBattlerTarget] |= STATUS3_SMACKED_DOWN;
+                    gStatuses3[gBattlerTarget] &= ~(STATUS3_MAGNET_RISE | STATUS3_TELEKINESIS | STATUS3_ON_AIR);
+                    BattleScriptPush(gBattlescriptCurrInstr + 1);
+                    gBattlescriptCurrInstr = BattleScript_MoveEffectSmackDown;
+                }
+                break;
             }
         }
     }
@@ -6844,6 +6853,12 @@ static void atk76_various(void)
         else
             gBattlescriptCurrInstr = T1_READ_PTR(gBattlescriptCurrInstr + 3);
         return;
+    case VARIOUS_TRY_SYNCHRONOISE:
+        if (!DoBattlersShareType(gBattlerAttacker, gBattlerTarget))
+            gBattlescriptCurrInstr = T1_READ_PTR(gBattlescriptCurrInstr + 3);
+        else
+            gBattlescriptCurrInstr += 7;
+        return;
     }
 
     gBattlescriptCurrInstr += 3;
diff --git a/src/battle_util.c b/src/battle_util.c
index 244c77cd3a..17ce185af7 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -5670,3 +5670,13 @@ void UndoMegaEvolution(u8 monId)
         CalculateMonStats(&gPlayerParty[monId]);
     }
 }
+
+bool32 DoBattlersShareType(u32 battler1, u32 battler2)
+{
+    if (gBattleMons[battler1].type1 == gBattleMons[battler2].type1 || gBattleMons[battler1].type1 == gBattleMons[battler2].type2)
+        return TRUE;
+    else if (gBattleMons[battler1].type2 == gBattleMons[battler2].type1 || gBattleMons[battler1].type2 == gBattleMons[battler2].type2)
+        return TRUE;
+    else
+        return FALSE;
+}
diff --git a/src/data/battle_moves.h b/src/data/battle_moves.h
index ecef5a3a45..fd25be5de4 100644
--- a/src/data/battle_moves.h
+++ b/src/data/battle_moves.h
@@ -5757,12 +5757,12 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
 		.split = SPLIT_STATUS,
 	},
 	{ // MOVE_SMACK_DOWN
-		.effect = EFFECT_PLACEHOLDER, // Needs a custom move effect
+		.effect = EFFECT_SMACK_DOWN,
 		.power = 50,
 		.type = TYPE_ROCK,
 		.accuracy = 100,
 		.pp = 15,
-		.secondaryEffectChance = 0,
+		.secondaryEffectChance = 100,
 		.target = MOVE_TARGET_SELECTED,
 		.priority = 0,
 		.flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGSROCK_AFFECTED,
@@ -5829,7 +5829,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
 		.split = SPLIT_PHYSICAL,
 	},
 	{ // MOVE_SYNCHRONOISE
-		.effect = EFFECT_PLACEHOLDER, // Needs a custom move effect
+		.effect = EFFECT_SYNCHRONOISE,
 		.power = 120,
 		.type = TYPE_PSYCHIC,
 		.accuracy = 100,
@@ -7416,7 +7416,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
 		.split = SPLIT_PHYSICAL,
 	},
 	{ // MOVE_LIGHT_OF_RUIN
-		.effect = EFFECT_PLACEHOLDER, // Needs a custom move effect (same as HEAD_SMASH)
+		.effect = EFFECT_RECOIL_50,
 		.power = 140,
 		.type = TYPE_FAIRY,
 		.accuracy = 90,