this game is utter crap.
now to back that up with some reasons:
.) the amount of detail in environments is almost the same as in "sonic adventure". the character models are a bit better but still not nexgen-worthy. damn, sega should look at some of their other games - like virtua fighter 5!
.) the camera is horrible. once you jump high up in the air, it doesn't seem to know what it's doing any more and starts to jump all over the place like some raver on speed.
.) tails throwing "ring bombs"?! give me a break, this is really the stupidest new character feature i've ever seen in a sonic game. you don't even have a crosshair for aiming those damn things! and controlling the flying tails feels like... i can't compare it with anything else, i never had to control a flying something in a game which felt this bad.
.) incredibly long loading times. i was even doing some stuff on my pc in the meantime but still couldn't stand it.
maybe this sonic part has even more crap to offer but i didn't even want to finish the first level!
until after sonic adventure 2 i loved almost all sonic games - which makes the disappointment just bigger.