The player takes the role of a mole. Their ground has been invaded by grinches, nasty things that can't dig very well but can move quite fast otherwise. The objective is to dig as much as possible before being caught by the grinches. one point is scored for every piece of dirt removed from the screen. one hundred points are scored for each bonus item collected.
The player has only one life and the game is over as soon as they are caught.
The game has nine levels of difficulty and keeps a record of the ten highest scores for each level.