diff --git a/engine/battle/effect_commands.asm b/engine/battle/effect_commands.asm
index 8fb719339..912b90236 100644
--- a/engine/battle/effect_commands.asm
+++ b/engine/battle/effect_commands.asm
@@ -3441,7 +3441,25 @@ DoEnemyDamage:
 	ld [wHPBuffer2 + 1], a
 	sbc b
 	ld [wEnemyMonHP], a
+; debug tool to allow quick KO of all opponents. Uncomment to activate for debug rom
+;if DEF(_DEBUG)
+;	push af
+;	ld a, BANK(sSkipBattle)
+;	call OpenSRAM
+;	ld a, [sSkipBattle]
+;	call CloseSRAM
+;	or a
+;	; If [sSkipBattle] is nonzero, skip the "jr nc, .no_underflow" check,
+;	; so any attack deals maximum damage to the enemy.
+;	jr nz, .debug_skip
+;	pop af
+;	jr nc, .no_underflow
+;	push af
+;.debug_skip
+;	pop af
+;else
 	jr nc, .no_underflow
+;endc
 
 	ld a, [wHPBuffer2 + 1]
 	ld [hli], a