Robo-Zilla is King Kong's arch nemesis.
Robo Dino was created by the Velociraptors in order to defend their homeworld from the Zin Empire. He was a powerful being and very dangerous. One day Robo Dino malfunctioned and went on a rampage destroying a Raptor City. The 3rd Street Saints stopped him and Robo Dino was extradited.
In a new timeline, Robo Dino made his way to earth and tried to turn Stilwater into a tropical jungle for his Raptor Androids. He came into conflict with King Kong over the city and surrounding islands.