Super Mario Galaxy on the Wii, is certainly bad ass. Good control, great graphics, awesome gameplay. It feels like this game was created by angels.
Certainly, if you have never played Super Mario Galaxy for Wii, your missing out. It's awesome. You start out as Mario running around the Mushroom Kingdom collecting "Star Bits" (To find out what Star bits are, play the game!!), for the annual shooting star ceremony. Like always though, Bowser is out to get the Princess. He captures the Princess, and takes her to his galaxy at the center of the universe. Badda-bing, Badda-boom!! Game play starts.
So seriously, I'd go pick up this game. If you don't have a Wii, go to a friend's house and check it out, it's pretty great.