There's always a catch.
So I have decided to stop work on Frank the Fruit Fly for now. The reason is because I want to make a game larger than 32k. And to do that, I'd need to learn how. And I cannot find any tutorials online on how to do this. My plan was to make this a 1 MB game, with each bank being 32k, but if I can't find any tutorials on making a bankswitch game, then I can't continue. So I opened a thread on the Game Boy programming forums, but nobody has answered yet. My fear is that nobody ever will. Which is a shame because i was kind of having fun programming it.