Left/Right arrows to move. Up arrow to aim up. Down to duck. Space to shoot. A for EX. And X to jump/parry.
This dude finally hit 1000 views! Don't judge me, It's my first cuphead boss attempt. No one recreated him in a while, so... @vmagnanic for cuphead and wallop sprites. spriters resource for Goopy and bg. I centered every frame and coded every script. If you use my code or Goopy, give credit.