The game set to parody all other games, that is this title's aim. (Rhyming for the win.)
In The Simpsons Game players take control of Homer, Bart, Marge, and Lisa, each with their own special powers. Homer can turn into a massive blob of a wrecking ball, Bart can turn into Bartman and grapple to high places, Marge can use a megaphone to recruit unwilling NPCs to do her bidding, and Lisa can use the powers of the Buddha to move objects around the game landscape.
You can see a new trailer of these in action after the jump.
