So far it's the bonus stage.
Remember in Sonic 1 how you had to navigate Sonic in that LSD like stage for the Chaos Emerald? Well, Sonic 4's stage is like that but YOU control the STAGE. I mean, one would have to get used to it but it's too bothersome. Not sure about on the Wii and the 360 but on the PS3 you can move the stage with the control stick/D-pad or the controller itself. And just when you thought it's over... It's timed AND you have to collect a certain number of rings to get into a section of the stage.The rest of the game, I think is good but, I'll have to play it more for a better thought of it.
