Icon-ooo.png This article is about a/an kaijin in Kamen Rider OOO.

The Siam-Neko Yummy (シャムネコヤミー Shamuneko Yamī) is a female Siamese Cat Yummy, with scalpel-like claws and Cell Medal-like objects hanging from her body, created by Kazari after he uses a Cell Medal on a female doctor named Kei Tamura, a genius surgeon who feels the director of the hospital, her father, is holding her back due to her pride and lack of fear for the patients' well being.

As a result, the Yummy uses Tamura to perform unauthorized surgeries by herself, giving her father a heart attack in the process. Eventually getting Tamura out of the hospital, Kamen Rider OOO fights the Siam-Neko Yummy, almost destroying her as Sagohzo Combo before the Yummy retreats back into Tamura and escapes. By the time Eiji finds her, Tamura is consumed by the Siam-Neko Yummy as he uses Takatoratar to free her. As Tamura manages to discard her pride to save her father, the Siam-Neko Yummy is destroyed by Kamen Rider OOO using the OOO Bash on her.


  • Episodes: 13-14, Movie War Ultimatum
  • Defeated by: Kamen Rider OOO's OOO Bash (14); Kamen Rider Wizard Flame Style's Flame Shooting Strike (Movie)

Movie War Ultimatum

The Siam-Neko Yummy makes an reappearance in Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum as one of the revived members of the Monster Army that Wizard faced in his portion of the movie. She was destroyed by Wizard's Flame Shooting Strike when he fired into the crowd of revived combatants without getting the chance to actually fight Wizard.



White Yummy

This form is exclusive to OOO Epsiode 13.

Siam-Neko Yummy

  • Height: 176 cm[1]
  • Weight: 72 kg[2]

Appearances: OOO Episodes 13-14, Movie War Ultimatum.

Behind the scenes


Siam-Neko Yummy is voiced by Sakura Yoshioka (吉岡 さくら Yoshioka Sakura) ,While possessing Kei Tamura, she is portrayed by Kyoko Matsunaga (松永 京子 Matsunaga Kyōko). Its suit actor is Jiro Uchikawa (内川 仁朗 Uchikawa Jirō)[3].

Concept Art

Siam-Neko Yummy was designed by Yutaka Izubuchi (出渕 裕 Izubuchi Yutaka).


  • Siam-Neko Yummy is the second female Yummy seen in Kamen Rider OOO.
  • She is the only Yummy that possess a human.



External links

Icon-ooo.png Kamen Rider OOO
Kamen Riders
Eiji Hino/King - Akira Date - Shintaro Goto - Kamen Rider Core - Nobunaga - Michal Minato - Poseidon
OOO Driver - O Scanner - Birth Driver - Aqua Driver - Poseidon Driver
O Medal-related
Core Medals - Cell Medals - O Medal Nest - O Medal Holder - Candroids - Ride Vendor - Aqua Miraider
Medajaribur - Toraclaws - Kamakirisword - Goribagoons - Denkiunagi Whips - Tajaspiner - Medagabryu - Burahngi - Toraclaw Solid - Birth Buster - Birth CLAWs - Deepest Harpoon
Kougami Foundation and Allies
Kougami Foundation: Kousei Kougami - Erika Satonaka
Cous Coussier: Hina Izumi - Chiyoko Shiraishi - Shingo Izumi
Greeed: Kiyoto Maki - Uva - Kazari - Gamel - Mezool - Ankh (Lost)
Yummy: Waste Yummies - White Yummy - Kamakiri Yummy - Otoshibumi Yummy - Neko Yummy - Piranha Yummy - Bison Yummy - Same Yummy - Ageha Yummy - Siam-Neko Yummy - Rikugame Yummy - Kabuto Yummy - Kuwagata Yummy - Lion-Kurage Yummy - Kurage Yummy - Batta Yummy - Ei-Sai Yummy - Omu Yummy (Blue, Red) - Ika-Jaguar Yummy - Shachi-Panda Yummy - Kuro Ageha Yummy - Pteranodon Yummy (Male, Female) - Fukuro Yummy - Unicorn Yummy - Uni-Armadillo Yummy - Shamo Yummy - Ankylosaurus Yummy - Hagetaka Yummy - Nue Yummy
Other Characters: Gara - Kamen Rider Fourze - Kamen Rider Double - Kamen Rider Wizard - Kamen Rider Gaim - Kamen Rider Ghost - Kamen Rider Ex-Aid - Kamen Rider Build - Kamen Rider Zi-O - Kamen Rider Geiz
Community content is available under CC-BY-SA unless otherwise noted.