I finally beat Sonic the Hedgehog for the 360 and wow was it freakin' sweet, the ending reminds me of the Back to the Future movies which made it more cool.  Dispute the poor reviews this game got I however found to be an incredible game with many plot twists, action, and so much more.  I won't spoil the ending for anyone, but the ending like I mentioned before is sweet, can't wait to see what Secret Rings is like.