User blog comment:Shan the Hedgehog/SPOILERS!!! MISSIONS!!!/@comment-1945883-20110701134643/@comment-1669199-20110701141216

So? Sonic Colors only had 8 stages, and Generations will be offering 2 versions of the same 9 stages you listed, right? So that'd be a grand total of 18 different stages, plus whatever bonus content might be in the finished product.