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Kenko ov


General Information
Affiliations Ishiyama
Powers and Abilities
Abilities Shapeshifting
Alias Kenko the Shapeshifter
Voice Actor Clancy Brown (Original Series)
Yuri Lowenthal (Alien Force)
First Appearance Game Over

Kenko the Shapeshifter appeared as the main villain of the Sumo Slammer Smackdown video game in Game Over. He is a shapeshifter and former archenemy of Ishiyama, the hero of the game.


Ben 10

He overhears Ben talking about the Upgrade token; believing it could be used to allow him to take over the real world, he attempts to obtain it. While Ben searches for the token, he fights and defeats Ishiyama, then assumes his nemesis' form after Ben reaches the Upgrade token first. He tries to trick Ben into taking him to the real world, but Grandpa Max's timely intervention in the game reveals his ruse. As Upgrade, Ben's control over the game allows him to depower Kenko, revealing him to actually be a small, weak, human-like creature. Afterward, Kenko is defeated when he knocks himself out by accidentally hitting himself in the head with a piece of his own armor.

Alien Force

Kenko was mentioned in The Final Battle: Part 1, when Ben mentions that in a sequel of the first Sumo Slammers series called Sumo Slammers: Hero Generation, taking place 5 years later, he teamed up with Ishiyama. This, as well as the title was Alien Force's working title and the other descriptions Ben gave, is a self-parody of Alien Force itself due to Kevin teaming up with Ben in Alien Force.


He only appeared as a video game character throughout the series. In And Then There Was Ben, Kenko can be seen while Ben plays Sumo Slammers.

In Fight at the Museum, Exo-Skull plays the same game and he gets defeated by someone called "Burgos" who used Kenko's character.

In It's a Mad, Mad, Mad Ben World: Part 1, he was used by Ben 23 against Ben Prime.


Ben 10

Ben 10: Omniverse

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