Wake the president, it's all-out nuclear thumb war. Thum vs Thum, the game that pits right versus left in fast-paced action. You have to react quickly while separating your left brain from your right as your thumbs wage war, or play against a friend (using a single iPhone). Send a volley of missiles at your opponent while simultaneously defending yourself by knocking his out of the air. It's thumageddon!!! Source: The Game Website.