The Emperor's New School (2006)

S1E12 The Big Fight

Title: The Epic Showdown Plot: Kuzco playfully mocks a fellow student named Kavo, believing it's all in good fun. However, Kavo, feeling insulted, becomes furious and vows to confront Kuzco. To escape his wrath, Kuzco scurries around the school, even transforming into a cat to evade his furious classmate.