But it doesn't have to be different? If someone wants to join your game (if you run out of real life friends during the night, hehe), well, they just hop in and you continue the singleplayer-now-mutiplayer mode. Also, I do believe they put the emphasis on the game being a multiplayer experience. Why showcase it then and call it "the 4D experience?"
It would be "an extra," nothing more. A good one, even if it's not necessary.
Random game thought :
Why is Bionic Commando Rearmed 2 getting so much hate? We finally get a real game and they're not even satisfied... I'm starting to hate the gaming community so f****** much...







