Grease: The Game, No Seriously

What better way to capture the splendor of the leather-clad, hip shaking of Olivia Newton-John and John Travolta in Grease than with a game for the Wii? By making sure that the game forces you allows you to use two microphones and a Wii Balanace Board while playing it, that's how! If only they could figure out a use for the Vitality Sensor.