[MuGen]

maybe have multiplayer be real time... such as if one player plays more than the other, it'll effect the stream of events the other player goes through.

say you could be playing with the other player at the same time, and then when he's sleeping at his apartment you could be playing and getting ahead, or maybe just having fun, and it'll show on the other player's stats, that would def need the HDD to store both player's individual happenings.