Video Game Character (Created as a Human)
Powers and Abilities
Enhanced Jumping Shockwaves Enhanced Strength Size Alteration
Ishiyama was credited as a Great Sumo Slammers Warrior in with the ability to increase his size, durability, and strength.
Ishiyama in the Original Series
were sucked into the Sumo Slammer Smackdown video game, he aided them in their progress. At first he believed Ben was his arch enemy,
Kenko the Shapeshifter
, but was convinced otherwise by Gwen. He is very honorable, responding that "a sumo never cheats!" when Ben asks him if he knows any cheat codes to help them out, but decides to make an exception and show them a shortcut to the last level. He considered Gwen a far greater fighter than Ben. He and Gwen fought Kenko while Ben searched for the
token on the final level. Kenko took his last life, but Ben revived him as Upgrade. He declared that he found
, who joined them at the last minute and was little more than a rookie, to be the greatest warrior of all for knowing that cleansing Sumo salt would reveal Kenko's true form when he disguised himself to deceive Ben and Gwen.
He made a cameo in
, where he was seen in anew episode.
Ben 10: Alien Force
Ishiyama in Ultimate Alien
Ishiyama was mentioned in
The Final Battle: Part 1
where Ben stated that his enemy Kenko teamed up with him in the Sumo Slammers sequel series, Sumo Slammers: Hero Generation.
Ben 10: Ultimate Alien
Ishiyama starred in
Sumo Slammers IV: The Movie in , battling one of The Perfect Girlfriend Kenko's minions in a sumo ring.
Ben 10: Ultimate Alien
Ben 10: Omniverse
His name is Japanese for "
Ishiyama is the last name of Yumi from Code Lyoko and Code Lyoko Evolution.
Ben 10 Characters
Ben Tennyson | Gwen Tennyson | Kevin Levin | Max Tennyson | Rook Blonko
Julie Yamamoto | Plumbers | Jimmy Jones | The Galvan ( Azmuth, Retaliator, Galvan Teacher) | Professor Paradox | Ship | Eunice | Zed
Petrosapiens ( Tetrax Shard, Sugilite) | Gluto | Galactic Enforcers | The Highbreed ( Reinrassic III) | Myaxx | Xylene | Colonel Rozum | SECT ( Lieutenant Steel) | Ignaceous | Technorg | Hector | Elsgood | Sheriff Mason | Kai Green | Ishiyama | Tennyson Family | Levin Family | Rook Family | Ester | Gourmands | Lewodans ( Tiffin, Cicely, Caitiff) | Rad Dudesman | Gar Red Wind
Albedo | Elena Validus | Phil | The Forever Knights ( Squire, Connor, Sir Cyrus, Patrick, Driscoll) | Vilgax | Michael Morningstar | Sunny | Antonio | Cash Murray | J.T. | Oliver Thompson | Zaw-Veenull | Probity | Viktoria
Deceased Supporting Characters and Allies
Devin Levin | Magister Labrid | Magister Prior Gilhil | Pierce Wheels | Sir George | Winston | Victor Validus | Kwarrel | The Sentinel
Prisoners of Aggregor
Charmcaster | Charmcaster's Stone Creatures | Argit | Baz-El | Simian | Vreedle Brothers ( Octagon Vreedle, Rhomboid Vreedle) | Blarney T. Hokestar | Raff | Pakmar | Mazuma | Solid Plugg
Bivalvan | Galapagus | P'andor | Andreas | Ra'ad
Serena | Bellicus | Mr. Baumann
Generator Rex Heroes
The Secret Saturdays Heroes
Rex Salazar | Bobo Haha | Agent Six | Rebecca Holiday | White Knight | Caesar Salazar
Zak Saturday | Doc Saturday | Drew Saturday | Fiskerton Saturday | Komodo | Zon
Future & Alternate Heroes
Ben 10,000 (Ultimate Alien) | Ben's Team (Alternate Future) ( Ben 10,000 (Ben 10), Gwendolyn Tennyson (Alternate Futuree), Ken 10, Devlin Levin, Max Tennyson (Alternate Future), Kenny's Pet) | Ben's Team (Dimension 23) ( Ben 23 | Tetrax Shard (Dimension 23) | Sevenseven (Dimension 23) | Azmuth (Dimension 23)) | Ben Tennyson (RAT Timeline) | Gwen Tennyson (RAT Timeline) | Max Tennyson (RAT Timeline) | Plumbers (RAT Timeline) | Ben Tennyson (Gwen 10) | Gwen 10 | Max 10