Perplexus

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 100 steps along narrow plastic tracks. The range of levels is 30-125. 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 navigated in order to reach the end.