Spike (film character)
Spike is portrayed as being stupid and incompetent, and he and Iggy fail all the tasks that Koopa gives them. This angers Koopa, and uses his de-evolution machine to evolve his cousins into intelligent beings. However, once they start thinking for themselves, Spike and Iggy decide to ally themselves with Mario and Luigi instead of Koopa.
At the end of the film, two Japanese businessmen propose the idea of making a video game based on Spike and Iggy's adventures. When asked what it should be called, Spike and Iggy decide to name it "The Super Koopa Cousins".