Mojo Jojo is a fictional character from the animated television series The Powerpuff Girls. He is a green, anthropomorphic monkey known for his large head and intelligence. Mojo Jojo serves as one of the main antagonists in the series, often devising elaborate plans to defeat the Powerpuff Girls and take over the city of Townsville. Originally a lab assistant to Professor Utonium, Mojo Jojo's transformation into a villain stems from an accident that left him with enhanced intelligence and a desire for revenge. His character is known for his distinctive speech pattern, often repeating himself and using complex vocabulary, which adds to his quirky personality.