Absolute Power (Part 2): The conclusion of the Kevin Levin mutation arc. Season 2: The Return of Old Enemies (12 Episodes) The Transmogrification of Eunice: Introduces the Unitrix.
This series is often praised by fans for its darker tone and higher stakes. It explores the consequences of fame and the ethical weight of having "ultimate" power. The finale concludes Ben's journey with the Ultimatrix, leading directly into the events of Ben 10: Omniverse. index of ben 10 ultimate alien
Duped: Ben uses the Ultimatrix to split into three versions of himself. Hit 'Em Where They Live: Villains target Ben’s family. Video Games: A reporter creates a robot to destroy Ben. Absolute Power (Part 2): The conclusion of the
Escape from Aggregor: Introduces the captured Andromeda aliens. Too Hot to Handle: P'andor tries to escape his suit. Ultimate Aggregor: Aggregor succeeds in his transformation. It explores the consequences of fame and the
Ultimate Spidermonkey: Transforms into a massive, gorilla-like creature with four spider legs.
Ultimate Swampfire: Becomes a wooden-like entity with blue fire and explosive seeds.
The Ultimate Enemy (Part 2): Ben faces Vilgax and Dagon in the series finale. The Ultimatrix: New and Ultimate Aliens