Mario Kart Wii is the latest incarnation of the insanely popular Mario Kart series. As in the previous versions of the game, you race go-karts around different parts of Mushroom Kingdom against characters like Mario, Bowser, and Princess Peach.
This version of the game adds new items to play with, like the Giant Mushroom which makes you so huge that you can run over other karts, flattening them, and Bullet Bill which transforms your kart into a giant auto-steering rocket.
You can also ride around on motorcycles instead of go-karts, and (after unlocking this feature by beating a certain level) you can also race as your Mii.
This is the most fun version of the game since Mario Kart 64, which was released 11 years ago. The GameCube edition of the game, Mario Kart Double Dash, was significantly more difficult and less fun; the Wii version brings Mario Kart back to its roots as a simple, fun racing game.