Motorized Moving 3D Maze: Perplexus Revolution Runner is a motorized, perpetually moving 3D maze! Twist, spin and turn to navigate the ball through the track and ever-changing obstacles to keep up with the maze’s movement without falling into the trench! As the track inside moves, the obstacles are ever-changing for a constant challenge of agility and speed! 4 speeds to master: Master the first speed, then step up your difficulty level to faster speeds for even more thrilling, high-tension challenges! —user summary