This game is awesome!
Just like I said above, this game is awesome! Nostalgia(hope I spelled it right) is definately the word to describe this game. I feel like I'm playing my sega genesis again. Sure Sonic is still around, and in 3D, but not all 3D games are better than their 2D counterparts.
But with this said I'd like to point out a few glitches that got to me so far. I haven't gotten far into the game yet though, so I probably haven't seen all of them.
1. When you get hurt, there is no momentary invulnerability. While this dis-allows certain things that might be considered 'cheating' it also allows you to die rather easily. I found that sometimes I would land on spikes, be bounced into the air only to land on the spike again without a way to prevent that from happening. Needless to say, that kills you quickly without any chance of dodging it.
2. I don't know if it matters much, but so far I've gotten only to the first boss. The thing I've noticed is that when you pause during that battle, the timer doesn't stop. During the main levels its fine. I geuss its just the boss levels.
But those are rather minor. Great game. Can't wait for more. Maybe in your next one you can add each characters special ability. Like Knuckles being able to glide.