Annoying and embarrassing to the series.
The gameplay was OK but it could've been better and more fun.
I really don't know what else to say. It was disappointing on sooo many levels. And don't get me wrong - every 3D game Sonic has been in hasn't been a miss. I halfway enjoyed Sonic Adventure DX and Sonic Adventure 2: Battle is one of my favorite Sonic games ever but this was a total waste and I just rented it!
I would never play it again and wouldn't try the sequel either which is probably just as bad.
Sorry guys and gals. I don't recommend this one at all.