Similarly to Frankenstein of older times, Professor Bloodheart believes that by the use of genetic engineering he can manipulate creatures to become is allies in his quest for world domination. He has installed himself within a dark and complex tower of secret rooms and passages guarded by the unfortunate mutations of his experiments. Captured by Professor Bloodheart you have escaped from his clutches. Your mission, if you decide to accept it, is to fight your way through hordes of his mutants ever onwards towards your final confrontation with the mad Professor himself. The tower is filled with tricks, traps, stairs, passageways and secret rooms. Scattered around are various weapons and potions to aid you in your quests well as heaps of treasure which will increase your score.