Press WASD for Cuphead, and arrow keys for Mugman. WARNING! DO NOT HOLD ARROWS OR WASD! OTHERWISE, IT WILL LAG! There is no way to win or lose. Why is this popular? This was a joke...
I am proud of recoloring Cuphead to Mugman... And PLEASE don't tell me the song or the background are wrong, I did the happy one, cause I like his anim, and I did Knockout because it is the BEST SONG. Thanks to @quocuy2009 for Cuphead and his background. Thanks to @-CatGirl_27- for the song.