You are snoopy. You move up and down the tree so to hit any balls advancing towards you. If any ball should pass you, you lose 1 of 3 lives. The aim is to hit ALL the balls, no matter how intense it gets! The balls are served at random time intervals and at random heights. The time intervals get shorter as the game progresses. Some times Lucy re-deflects your balls at a faster speed, you get extra points when hitting these.