Note, I am not asking for memory card emulation, I'm just trying to point something out. I'm pretty sure that you could temporarily emulate the memory card in RAM. Just delete it upon closing the program. I don't see any reason that wouldn't be possible(I don't know much about Gamecube, though). That would allow compatibility with games that do require a memory card, but it also wouldn't allow people to play through an entire game, which would defeat the purpose of buying a Gamecube(which JinXD pointed out).