The Z button is for slashing. X is for touching yourself. I keep mixing them up and honestly, the game doesn't seem to mind. You're this ninja girl with a scroll that probably has some plot significance but who cares, there's a werewolf thing humping the air three pixels from your hitbox and you're frantically mashing C hoping the explosion clears the screen before the tentacle monster from the left corridor finishes its grab animation.

I spent way too long on the first screen just pressing X. Not because I was stuck. The masturbation animation loops with this weird