Gridders for the Panasonic 3DO.  In a puzzling futuristic world, the government hires the evil Gridders Corporation to clean up after an ecological disaster, but the evil conglomerate pushes towards a totally automated world. Is mankind a thing of the past? Walk through an enormous grid world as Zack, humanity's last hope. The grid is full of gigantic, rolling shapes, some which help, others that hurt. The challenge is to decide which is which and discover special Pyramid Keys so you can advance to the next level. Pick your degree of difficulty then journey through 36 levels of brain-bending 3D adventure puzzles to save the human race.