I just did the first 2 rounds and got rather bored. It's not bad I guess. It's a race of sorts where you go around collecting various items, coins, duck mask, key's, stickers etc and try and do it before times up. The blue T coins add 1 second to your time, and the red ones take 1 second away. The third round you play an aligator..
It gets harder after a bit. But still not all that great.