diff --git a/asm/macros/battle_script.inc b/asm/macros/battle_script.inc
index 9fa3fe0c3..9d624195b 100644
--- a/asm/macros/battle_script.inc
+++ b/asm/macros/battle_script.inc
@@ -1769,6 +1769,12 @@
 	various \battler, VARIOUS_TRY_ACTIVATE_GRIM_NEIGH
 	.endm
 
+	.macro jumpifspecies battler:req, species:req, ptr:req
+	various \battler, VARIOUS_JUMP_IF_SPECIES
+	.byte \species
+	.4byte \ptr
+	.endm
+
 @ helpful macros
 	.macro setstatchanger stat:req, stages:req, down:req
 	setbyte sSTATCHANGER \stat | \stages << 3 | \down << 7
diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index b5dc673a0..6fb81c9ac 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -11,6 +11,7 @@
 #include "constants/game_stat.h"
 #include "constants/trainers.h"
 #include "constants/battle_config.h"
+#include "constants/species.h"
 	.include "asm/macros.inc"
 	.include "asm/macros/battle_script.inc"
 	.include "constants/constants.inc"
@@ -369,6 +370,18 @@ gBattleScriptsForMoveEffects:: @ 82D86A8
 	.4byte BattleScript_EffectSleepHit
 	.4byte BattleScript_EffectAttackerDefenseDownHit
 	.4byte BattleScript_EffectBodyPress
+	.4byte BattleScript_EffectHyperspaceFury
+
+BattleScript_EffectHyperspaceFury:
+	jumpifspecies BS_ATTACKER, SPECIES_HOOPA_UNBOUND, BattleScript_EffectAttackerDefenseDownHit
+	jumpifspecies BS_ATTACKER, SPECIES_HOOPA, BattleScript_ButHoopaCantUseIt
+	printstring STRINGID_BUTPOKEMONCANTUSETHEMOVE
+	waitmessage B_WAIT_TIME_LONG
+	goto BattleScript_MoveEnd
+BattleScript_ButHoopaCantUseIt:
+	printstring STRINGID_BUTHOOPACANTUSEIT
+	waitmessage B_WAIT_TIME_LONG
+	goto BattleScript_MoveEnd
 
 BattleScript_EffectAttackerDefenseDownHit:
 	setmoveeffect MOVE_EFFECT_DEF_MINUS_1 | MOVE_EFFECT_AFFECTS_USER | MOVE_EFFECT_CERTAIN
diff --git a/include/constants/battle_config.h b/include/constants/battle_config.h
index fe376da8d..9e610b43c 100644
--- a/include/constants/battle_config.h
+++ b/include/constants/battle_config.h
@@ -35,6 +35,8 @@
     #define SPECIES_ZYGARDE                 0     // 50%
     #define SPECIES_ZYGARDE_10              10011 // 10 %
     #define SPECIES_ZYGARDE_COMPLETE        10012 // 100 %
+    #define SPECIES_HOOPA                   0
+    #define SPECIES_HOOPA_UNBOUND           10013
 #endif
 
 // Items with peculiar battle effects.
diff --git a/include/constants/battle_move_effects.h b/include/constants/battle_move_effects.h
index 6174ca496..0fa6dea89 100644
--- a/include/constants/battle_move_effects.h
+++ b/include/constants/battle_move_effects.h
@@ -353,7 +353,8 @@
 #define EFFECT_SLEEP_HIT 347 // Relic Song
 #define EFFECT_ATTACKER_DEFENSE_DOWN_HIT 348
 #define EFFECT_BODY_PRESS 349
+#define EFFECT_HYPERSPACE_FURY 350
 
-#define NUM_BATTLE_MOVE_EFFECTS 350
+#define NUM_BATTLE_MOVE_EFFECTS 351
 
 #endif  // GUARD_CONSTANTS_BATTLE_MOVE_EFFECTS_H
diff --git a/include/constants/battle_script_commands.h b/include/constants/battle_script_commands.h
index faaf8f17e..87139bbe0 100644
--- a/include/constants/battle_script_commands.h
+++ b/include/constants/battle_script_commands.h
@@ -173,6 +173,7 @@
 #define VARIOUS_DESTROY_ABILITY_POPUP           102
 #define VARIOUS_TOTEM_BOOST                     103
 #define VARIOUS_TRY_ACTIVATE_GRIM_NEIGH         104
+#define VARIOUS_JUMP_IF_SPECIES                 105
 
 // Cmd_manipulatedamage
 #define DMG_CHANGE_SIGN            0
diff --git a/include/constants/battle_string_ids.h b/include/constants/battle_string_ids.h
index 266aef147..9e3941324 100644
--- a/include/constants/battle_string_ids.h
+++ b/include/constants/battle_string_ids.h
@@ -570,8 +570,10 @@
 #define STRINGID_MICLEBERRYACTIVATES             566
 #define STRINGID_PKMNSHOOKOFFTHETAUNT            567
 #define STRINGID_PKMNGOTOVERITSINFATUATION       568
+#define STRINGID_BUTPOKEMONCANTUSETHEMOVE        569
+#define STRINGID_BUTHOOPACANTUSEIT               570
 
-#define BATTLESTRINGS_COUNT                      569
+#define BATTLESTRINGS_COUNT                      571
 
 // The below IDs are all indexes into battle message tables,
 // used to determine which of a set of messages to print.
diff --git a/include/constants/pokemon.h b/include/constants/pokemon.h
index 322bee706..39157a53b 100644
--- a/include/constants/pokemon.h
+++ b/include/constants/pokemon.h
@@ -315,6 +315,7 @@
 #define FLAG_DMG_2X_IN_AIR          (1 << 22) // If target is in the air, can hit and deal double damage.
 #define FLAG_DMG_IN_AIR             (1 << 23) // If target is in the air, can hit.
 #define FLAG_DMG_UNGROUNDED_IGNORE_TYPE_IF_FLYING (1 << 24) // Makes a Ground type move do 1x damage to flying and levitating targets
+#define FLAG_HIT_IN_SUBSTITUTE      (1 << 25) // Hyperspace Fury
 
 // Split defines.
 #define SPLIT_PHYSICAL  0x0
diff --git a/src/battle_message.c b/src/battle_message.c
index d4d5756f9..9f4de13d9 100644
--- a/src/battle_message.c
+++ b/src/battle_message.c
@@ -696,6 +696,8 @@ static const u8 sText_CanActFaster[] = _("{B_ATK_NAME_WITH_PREFIX} can act faste
 static const u8 sText_MicleBerryActivates[] = _("{B_SCR_ACTIVE_NAME_WITH_PREFIX} boosted the accuracy of its\nnext move using {B_LAST_ITEM}!");
 static const u8 sText_PkmnShookOffTheTaunt[] = _("{B_SCR_ACTIVE_NAME_WITH_PREFIX} shook off\nthe taunt!");
 static const u8 sText_PkmnGotOverItsInfatuation[] = _("{B_SCR_ACTIVE_NAME_WITH_PREFIX} got over\nits infatuation!");
+static const u8 sText_ButPokemonCantUseTheMove[] = _("But {B_ATK_NAME_WITH_PREFIX} can't\nuse the move!");
+static const u8 sText_ButHoopaCantUseIt[] = _("But Hoopa can't use it\nthe way it is now!");
 
 const u8 *const gBattleStringsTable[BATTLESTRINGS_COUNT] =
 {
@@ -1256,6 +1258,8 @@ const u8 *const gBattleStringsTable[BATTLESTRINGS_COUNT] =
     [STRINGID_AURABREAKENTERS - 12] = sText_AuraBreakActivates,
     [STRINGID_COMATOSEENTERS - 12] = sText_ComatoseActivates,
     [STRINGID_SCREENCLEANERENTERS - 12] = sText_ScreenCleanerActivates,
+    [STRINGID_BUTPOKEMONCANTUSETHEMOVE - 12] = sText_ButPokemonCantUseTheMove,
+    [STRINGID_BUTHOOPACANTUSEIT - 12] = sText_ButHoopaCantUseIt,
 };
 
 const u16 gTerrainStringIds[] =
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 4c95ecb63..2a4b2e347 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -8426,6 +8426,12 @@ static void Cmd_various(void)
             gBattlescriptCurrInstr += 7;    // exit if loop failed (failsafe)
         }
         return;
+    case VARIOUS_JUMP_IF_SPECIES:
+        if (gBattleMons[gBattlerAttacker].species == gBattlescriptCurrInstr[3])
+            gBattlescriptCurrInstr = T1_READ_PTR(gBattlescriptCurrInstr + 4);
+        else
+            gBattlescriptCurrInstr += 8;
+        return;
     }
 
     gBattlescriptCurrInstr += 3;
@@ -11862,6 +11868,8 @@ bool32 DoesSubstituteBlockMove(u8 battlerAtk, u8 battlerDef, u32 move)
         return FALSE;
     else if (GetBattlerAbility(battlerAtk) == ABILITY_INFILTRATOR)
         return FALSE;
+    else if (gBattleMoves[move].flags & FLAG_HIT_IN_SUBSTITUTE)
+        return FALSE;
     else
         return TRUE;
 }
diff --git a/src/data/battle_moves.h b/src/data/battle_moves.h
index 7746b1196..ecc0f907b 100644
--- a/src/data/battle_moves.h
+++ b/src/data/battle_moves.h
@@ -9678,7 +9678,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
 
     [MOVE_HYPERSPACE_FURY] =
     {
-        .effect = EFFECT_ATTACKER_DEFENSE_DOWN_HIT,
+        .effect = EFFECT_HYPERSPACE_FURY,
         .power = 100,
         .type = TYPE_DARK,
         .accuracy = 0,
@@ -9686,7 +9686,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 100,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_HIT_IN_SUBSTITUTE,
         .split = SPLIT_PHYSICAL,
         .argument = MOVE_EFFECT_FEINT,
     },