if you have rings and you hit an ENEMY, you continue playing, but you loose all the rings. If you crash into any object, you loose even if you have a lot of rights.
Why does this game work like a piece of shit on my itouch 4g? I just bought it. BRAND NEW, and when I download this, it's so...so..laggy! Come on, Sega. Quit making your games like Sonic 06 and fix this app.