So first of all the game works on a DMG, I don't really know how since it's a .gbc file, but anyway it works, (some slowdowns anyway) :D . Otherwise I also made it on GBC, since you indicate that it is its main version. Good platform game with a nice aesthetic, and a good sense of humor, a distant cousin of "Earthworm Jim" maybe :D But I didn't understand at all what to do with the boss, and I went to the Game Over twice :) . A few little bugs during the maze part too, but it must have been complicated to do, and good idea to use the "whey" for this part :D . Good luck for the Jam :) .