(After the alien invasion stopped, suddenly monsters begin appearing in various parts of the world because of a mysterious green gas that mutants everything around it. Monsters mutated by the gas appear, allow with ones who are awaken and powered by the gas appear around the globe to fight and destroy humanity. This includes you, a monster who along with the others to begin rampaging through various major cities and fight the other monsters)

In New York, the giant gorilla monster known as "Congar" appears. Swinging through building, and destroying the US military along the way. He climbs the Emperor State building and roars fiercely. Until he hears another roar coming from below. It's you, coming to challenge the great ape