I wish Tails had been playable in the Sonic Unleashed day stages, as a Sonic clone, who can fly instead of use the light speed dash.
Would have been awesome boosting as Tails...
I think having Knuckles as the alt for Night stages could have worked out as well.
Have his glide to help with the hard platforming elements of the stages...specifically with the spiked balance beams.
Plus that would mean Knuckles finally would have a deep fighting system, and may actually wind up being cool again.
Probably not though...personally I never liked Knuckles, and then the SA games made me hate him.
Edit:
Kool Kitty, this isn't the first time they claimed to be breaking the cycle either, when they were just rehashing some Sonic Unleashed stuff.
They also said "Return to speed!" and Sonic Unleashed already did that as well, to the point where it's probably the fastest Sonic game we'll ever have.
So fast, many idiot emo fans complained that Sonic was too fast.
That's...retarded. It doesn't get worse than that. That's how you know the fans have lost touch with what Sonic really is.
People who complain about Sonic Unleashed speed levels being "too fast," and "too hard" are just sad people I can't begin to understand, or empathize with.

