A welcome break from the piles of blood and guts left by playing games like GTA, and all the war games! This games give Sonic a bit of run for his money as he has to compete against his friends to win. It's almst a hybrid of platform/racing.
Whilst its a good game, you do fins that it can be a bit too quick for the PSP, and before you know it you've made the same mistakes a few times! For all those who think it's one of those platforms where you hold down the right direction key and go for it (your not too far off, but RTFM, it will help when your opponent start beating the crap outta you!)