[Mockery]

Geometry Wars: Galaxies is extremely awesome (and it's now pretty cheap to buy as well).

Metroid Prime 3: Corruption is another great one, though extremely hard in parts (like all Metroid games).

Also, don't forget that the new Punch-Out game is coming to the Wii in May and it's looking extremely promising from what I've seen so far. So that's definitely one to keep in mind.