Have completed the camaign on a couple of platforms. Great single player with plenty of mystery and intreague. 8.5/10.

This game has the best elements from every other arcade/cart style racing game all rolled into one! If you like Mario Cart and you are a sonic fan, grab this bad boy. The game looks stellar and plays pretty smooth. The levels so far (I'm 6 or so in) are really amazing! 9/10 I'd say!

NOTE: I play with a 360 controller and has a very fluid transfer of button layouts. And apears to acomidate split screen very well!