The goal of the jam is to make a game that looks like a gameboy game, it doesn't actually have to be gameboy compatiable

If you haven't specifically made the game to work on a gameboy (i.e. via GBStudio or assembly) it probably won't. As Fruitfly098 says, the goal of the jam is to make something that looks like it might be a gameboy game. See the jam rules for more details.