Pretty much, the anti-cheat will turn off the stage music into creepy ambience (which I made by a FLEX instrument), and make it fade into black (except for the HUD/sprites). Kris will have a gained attack to 999% for all their moves and will pretty much one shot the cheat character. If they get hit off screen, they will simply jump back onto the stage and just start slashing. If you do nothing for simply 5 or so seconds after the stage fades to black, then Kris will stab you in the back from the air. Oh. And if you somehow survive, you get a jumpscare that instantly crashes your game. (The jumpscare being well, them breaking the fourth wall and trying to get out of your computer.)

Meh, just an idea.