Contains 5 crazy critters, 1 timer and 1 plastic Hammer. Place each critter on the floor or any flat surface at least an arms length away from you, and from each other. Set the automatic counter on the bottom of each critter to 0. Grab the hammer, twist the timer on and then whack those critters down. Keep whacking those critters, 'cause as quickly as you whack, they pop back. When the timer rings, your turn is over. Add up your score on the counters, then let someone else take a whack at it. Highest score wins. - BoardGameGeek