What happens when you experiment on a labrat? Normally nothing, but in this game you get a Mutated Fighting Machine! Start out by injecting and feeding your mutant Labrat, and making him stronger. Then take him out and fight others of his kind as you strive to be the toughest mutant Labrat out there. As your workers prove to be incompetent you can feed them to the mutant, to teach the others a lesson. Use the world map to buy new chemicals and to hunt new creatures to test your strength. Fight in the arena as you set out to prove that you are the greatest Mutant Labrat of all time!