Koop-zilla

Koop-zilla is King Koopa's alter ego in the episode, "Mario Meets Koop-zilla". However, unlike with most of his other alter egos, King Koopa's wardrobe is unchanged, with the exception that he's much bigger and fatter than his normal state. King Koopa became Koop-zilla after eating Dr. T. Garden's Super Sushi, and he used his enlarged state to try to destroy Sayonara. However, King Koopa would later be returned to normal size after Luigi, Toad, and Princess Toadstool injected him with the Super Sushi Shrinker. Koop-zilla is a spoof of the name, Godzilla.