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Not really sure if Cataclysm can be called an expansion...i mean:
New races: That isn't really new, you still get to play the same classes which is what really impacts how you play the game
New classes combos: Same as above is just the same classes and no new draenei classes? no tauren rogues...
DS: Elite Beat Agents is lots of fun, with good cover voices for the songs
PS2: Kingdom Hearts 1&2 hands down one of the best rpg ever
Wii: Second Twilight Princess, very good game
I don't have it, but I heard Mario Kart for the Wii is pretty good