I have another post regarding a modded Gameboy Color cartridge to play any ROM I want, but I was also thinking of modding an N64 cart to play Gameboy Color games. My first intention is to merge Super Gameboy with a cheap N64 cart, or, perhaps, mod an N64 cart to load a modified version of Super Gameboy to an N64 cartridge via SD card modification, or my modding a crappy N64 game. I will be getting a Transfer Pak for my N64, but I am wondering which would be cheaper... a modded GBC cart, or a modded N64 cart.. If it was N64, I can program for it, and it would be doable, I am already an N64 rom hacker, and I could dig out more info to create a custom GBC playing N64 cart using the Transfer Pak as a portal to read the game. In fact, this is my first intention, to create a ROM that will read the Transfer Pak and play the GBC game in that slot. Modifying an N64 cart to directly read from the GBC cartridge would require less programming, but more knowledge on fixing it to the cartridge. I was thinking the latter due to the fact that there will be less coding baggage involved, even though it would be intensive. Loading the Transfer Pak could be problematic, and lead to damaged hardware... but granted the alternative could royally muck things up also. The other problem? Button inputs - making them different from the N64 controller. I could possibly convert inputs in the N64 cart, but the know-how would require understanding how various GBC ROMs use input data.