Would it be possible to an emu coder to modify their existing ones OR code a NEW build of an emulator (GBC, Gamegear, snes, nes, etc.) To have 2 player support via RF unit?
The problem is that very few people own gp32s, so the chances of a friend owning one aswell are pretty slim... (I persuaded 3 of my friends to buy one tho, so im a lucky one >