How to Access The Debug Mode
The game will boot into debug mode ONLY if you go into your Cuphead_Data folder. There should be many files, and two of them are called “level0” and “level7”.
It is a very simple installation. At this point, make sure to backup your save folder and backup the level0 and level7 files. After you do so, carefully rename level0 to level7 and viceversa. The game will now boot into debug mode just like the picture below.
Have fun, and when your revert your game with your backup, make sure to use your backup saves.
WARNING: This will delete 1 slot save.
Debug mode includes;
4 unused casino bosses:
1.Card – very unplayable with paint graphics. Can’t damage the boss.
2.Pachinko – looks like this one was scrapped for some reason. Has all animations, but some graphics are just placeholders. Even has a death quote.
3.Airship_stork – doesn’t load.
4.Laser – unfinished. Placeholder graphics.