A big change from the first sonics. Don't like it much.
So let me explain what you need to do. You must find certain monsters in you're area and kill them. You get a bird or flickey as they call it, I think. You need to collect a few and send them to this big ring you jump on. You gotta jump on the ring and if you had enough birds you get to go to the next level. This game is a waste of time, unless you're a hardcore sonic fan. No story, at all, just running around jumping and killing bad guys for birds. Its not smart.
I'd recommend playing this game if you friend has it. Just go to his house and play but dont buy it. I'm happy my cousins got this and lend it to me a few years back.
Thanks for reading my review.