diff --git a/include/constants/battle_tower.h b/include/constants/battle_tower.h
index b372c3ad5c..c453e90a69 100644
--- a/include/constants/battle_tower.h
+++ b/include/constants/battle_tower.h
@@ -38,4 +38,10 @@
 #define BATTLE_TOWER_LINKSTAT_PARTNER_RETIRE  2
 #define BATTLE_TOWER_LINKSTAT_PLAYER_RETIRE   3
 
+// Ids for special multi battle types
+#define MULTI_BATTLE_2_VS_2 0
+#define MULTI_BATTLE_2_VS_WILD 1
+#define MULTI_BATTLE_2_VS_1 2
+#define MULTI_BATTLE_CHOOSE_MONS 0x80
+
 #endif //GUARD_CONSTANTS_BATTLE_TOWER_H
diff --git a/src/battle_tower.c b/src/battle_tower.c
index fbb3d28a6b..de2c6f0cb6 100644
--- a/src/battle_tower.c
+++ b/src/battle_tower.c
@@ -2125,16 +2125,16 @@ void DoSpecialTrainerBattle(void)
         BattleTransition_StartOnField(B_TRANSITION_MAGMA);
         break;
     case SPECIAL_BATTLE_MULTI:
-        if (gSpecialVar_0x8005 & 1) // Player + AI against wild mon
+        if (gSpecialVar_0x8005 & MULTI_BATTLE_2_VS_WILD) // Player + AI against wild mon
         {
             gBattleTypeFlags = BATTLE_TYPE_DOUBLE | BATTLE_TYPE_MULTI | BATTLE_TYPE_INGAME_PARTNER;
         }
-        else if (gSpecialVar_0x8005 & 2) // Player + AI against one trainer
+        else if (gSpecialVar_0x8005 & MULTI_BATTLE_2_VS_1) // Player + AI against one trainer
         {
             gTrainerBattleOpponent_B = 0xFFFF;
             gBattleTypeFlags = BATTLE_TYPE_TRAINER | BATTLE_TYPE_DOUBLE | BATTLE_TYPE_MULTI | BATTLE_TYPE_INGAME_PARTNER;
         }
-        else
+        else // MULTI_BATTLE_2_VS_2
         {
             gBattleTypeFlags = BATTLE_TYPE_TRAINER | BATTLE_TYPE_DOUBLE | BATTLE_TYPE_TWO_OPPONENTS | BATTLE_TYPE_MULTI | BATTLE_TYPE_INGAME_PARTNER;
         }
@@ -2144,12 +2144,12 @@ void DoSpecialTrainerBattle(void)
         gPartnerTrainerId = gSpecialVar_0x8006 + TRAINER_CUSTOM_PARTNER;
         CreateTask(Task_StartBattleAfterTransition, 1);
         PlayMapChosenOrBattleBGM(0);
-        if (gSpecialVar_0x8005 & 1)
+        if (gSpecialVar_0x8005 & MULTI_BATTLE_2_VS_WILD)
             BattleTransition_StartOnField(GetWildBattleTransition());
         else
             BattleTransition_StartOnField(GetTrainerBattleTransition());
 
-        if (gSpecialVar_0x8005 & 0x80) // Skip mons restoring(done in the script)
+        if (gSpecialVar_0x8005 & MULTI_BATTLE_CHOOSE_MONS) // Skip mons restoring(done in the script)
             gBattleScripting.specialTrainerBattleType = 0xFF;
         break;
     }
@@ -2678,7 +2678,7 @@ static void sub_8164DCC(void)
 static void SetMultiPartnerGfx(void)
 {
     // 0xF below means use VAR_OBJ_GFX_ID_E
-    SetBattleFacilityTrainerGfxId(gSaveBlock2Ptr->frontier.trainerIds[17], 0xF); 
+    SetBattleFacilityTrainerGfxId(gSaveBlock2Ptr->frontier.trainerIds[17], 0xF);
 }
 
 static void SetTowerInterviewData(void)