So is this thread about the wii version or ps2? I have the ps2 game, there mentioned something about fusion disc, i never had used it cause i only had one game, but what was it for?Another curious question is that ps2 and wii seem to share a few games, one thing i didn't understand is how just like this game, sonic riders zero gravity also has ps2 and wii only consoles. Then a game like sonic unleashed, available for 4 consoles, the ps2 and wii play the same while ps3 and xbox 360 play the same but different from ps2 and wii. I thought wii was in the same class as ps3 and xbox 360. What is up with that?