Perplexus (formerly known as Superplexus) is a 3-D ball-in-a-maze puzzle or labyrinth game enclosed in a transparent plastic sphere. By twisting and turning the sphere, players attempt to maneuver a small steel ball through an intricate maze composed of a certain number of steps (varying in each puzzle) along narrow plastic tracks. The number of steps ranges from 30 in the Perplexus Twist, to 125 in the Perplexus Epic. Some of the steps involve dropping the ball into a cup or through a small rim to take advantage of its three-dimensional nature. There are obstacles of varying difficulty that must be negotiated in order to reach the end.