Has anyone tried this yet? I think a 2d side scroller online game would be awesome. Imagine a classic mario game, and how fun it was playing with 2 people. Remember the versus mode? That would be so cool to have a stage that is really huge,(like 10 times the size of the old game), and there would be like 10 players running around and fighting. And then, besides multiplayer, you'd do the main game. It would be awesome for there to be a co-op mario game. One person with the raccoon suit, the other with a frog suit, you could use each other to get farther...
Some people probably don't like that idea, but i'd love a 2d side scroller adventure online co-op game.
That idea could be done without the online aspect, and would probably better with the co-op version not online, but I really want to go online with the cube, so any game online right now I'd buy for it, as long as it doesn't have a monthly charge.