Abstract: A transparent enclosed cube containing a maze constructed of a plurality of layers of parallel square tubes separated by other layers of parallel square tubes, each tube having at least one opening to a neighboring tube, entrance opening to insert a ball therein that will traverse the maze to an exit opening by gravity when the cube is manipulated about its three axes. The ball may be made with a resilient surface and the entrance opening may be smaller than the other tube openings so the ball must be squeezed through the entrance.