Has anyone ever successfully made a Gameboy or Gameboy Color reproduction cartridge? I'm curious, because I recently discovered the existence of the fan-made Metroid 2 DX "restoration," and I think it's a really cool project. However, it would be really nice if there was some way to put it onto an actual Gameboy color cart. Nothing would be more awesome than squinting in front of a tiny LCD screen and experiencing it the way it was meant to be played.
Unfortunately, I haven't really been able to dig up any examples of Gameboy cartridge reproduction projects, let alone anyone who makes them for commission. Even as I drool at the thought of playing Metroid II DX on an actual cartridge and a real gameboy, I have more or less reached a dead end in my search. It doesn't really matter a whole lot since I'm pretty much broke for the next two weeks or so, but still, I don't want to give up my quest for this grail of handheld gaming just yet.
So, any ideas?