Object is to be the first player to collect each of five colors and fill your card. Each player chooses an illustrated squirrel-away card and takes a nut catcher. Now place the colored balls in the game tray and turn on the game. The balls will now be whirling around the tray. Each player races to try to catch the whirling balls by coming down directly on top of them with the nut-catcher. - BoardGameGeek