Complex sentence: A magnet is used in other versions where the balls have to be manipulated rather than the baby it is really bad as always this wooden labyrinth was made a ge agoe of a 3D ball-in-a-maze.
Split into simpler sentences: A magnet is used in other versions where the balls have to be manipulated rather than the maze. Perplexus is an example of a 3D ball-in-a-maze.