Few scientists have captured gorillas from the jungle and now they are experimenting on them to create something new and powerful, after few experiments, they came to know that they have given the wrong serum to one of the gorillas, the nature of gorilla has changed, now he is angry, and he have the intentions to destroy everything that comes in his way. He broke the cage and now he is in the city destroy and smashing everything.
You have to control his action in the game.