Nasty aliens from outer space want to eat your moonbase. This is out of the question! Board your tank, load your cannons, and show the aliens who's boss. Aliens you destroy drop items, which you can collect to upgrade your tank. But beware of falling debris and rivalling players who try to snatch the items from under your nose. Aliens move to the rhythm of the music and this helps you anticipate their movement. Get into the groove in order to blast aliens quicker, and score bonus points! Who can eliminate the most aliens and get the highscore? Hilarious outer space musical mayhem for 1-4 players.