The game is a handheld dome containing 15 dice (5 red, 5 yellow, 5 blue) and whose base contains a 4x4 grid of slots for the dice to settle into. The object is to shake and rattle the dome so that 4 dice of the same color form a straight line or a square. You score the sum of the numbers on the dice in that line or square. A diagonal counts double, and a center square counts triple.