There is a glitch called weapon swap glitch by speedrunners where the cooldown is still counting down after switching weapons, the cooldown isn't set to zero so you are not shooting a new bullet every time you switch, but it isn't paused so when you switch back it can be shot almost immediately again when the cooldown is off, this glitch is patched by pausing the cooldown correctly when switching the weapon.If you enter a Die House, you can move around and play normally, but you cannot talk to King Dice or leave.If you enter Porkrind's Emporium, you won't be able to do anything whatsoever.If a Nintendo GameCube controller is used on the Steam version of the game, the player will not be able to do anything in the buildings entered.Beating a level will randomly give you 0-1 star on the results screen when you press the confirm button to skip at an exact frame, this usually shows the results of other information immediately but for the stars it caused a visual glitch.This can cause all manner of weird behavior. Some bosses, like Beppi The Clown in the bumper car phase, can only switch phases at certain points in their attack pattern, so it's possible to deal damage fast enough to move at least one phase ahead of schedule. A boss's current phase is almost always determined by the level of health, with the boss making an effort to go to the next phase after reaching a certain level of health.If you select Expert Mode in the save file with a completed main game, starting a new one stays at Expert Mode.

Also, if Cuphead parries a damaging parryable object the same time they touch it, the game will softlock.The game cannot be paused after this soft-lock happens and the only way to get past that is to close the game and reopen it. If Cuphead dies during a boss transition, the boss battle will still continue and the game will soft-lock.6.1 Videos of the listed glitches in action.

1.1 Videos of the listed glitches in action.

Cuphead king dice no damage