This article is about a/an Mirror Monster in Kamen Rider Ryuki.

Biogreeza (バイオグリーザ Baiogurīza, 13 Riders): A humanoid Chameleon monster that serves as Kamen Rider Verde's Contract Monster.


  • Death Punish: Verde's Final Vent; Biogreeza wraps his extended tongue around Verde's legs and swings him towards his opponent where Verde grabs the opponent and piledrives his opponent head first into the ground.


Through the use of certain Advent Cards, parts of Biogreeza's body can be used by Verde as weapons or other equipment.

  • Bio-Winder (バイオワインダー Baio Waindā): A yo-yo weapon derived from Biogreeza's eyes. It's summoned with Verde's Hold Vent card.



Biogreeza drawn by the Kanzaki brother and sister.

  • Before Biogreeza's debut in the special, its origin painting already made appearances in the TV series.
  • Biogreeza was planned to be playable in the video game, but he was cut from the final game. His leftover data is still on the disc and can be chosen with cheat devices, although he cannot be controlled.[1]

See also


  1. The Cutting Room Floor: Kamen Rider Ryuki
Icon-ryuuki Kamen Rider Ryuki
The 13 Kamen Riders
Shinji Kido - Ren Akiyama - Masashi Sudo - Shuichi Kitaoka - Miyuki Tezuka - Jun Shibaura - Takeshi Asakura - Satoru Tojo - Mitsuru Sano - Kamen Rider Odin - Goro Yura
Movie Exclusive: Itsuro Takamizawa - Miho Kirishima - Dark Shinji
The Alternatives
Hajime Nakamura - Hideyuki Kagawa
Kanzaki family
Yui Kanzaki - Shiro Kanzaki - Sanako Kanzaki
ORE Journal
Daisuke Okubo - Reiko Momoi - Nanako Shimada - Megumi Asano
Mirror Monsters
The Contract Monsters: Dragreder - Darkwing - Volcancer - Magnugiga - Evildiver - Metalgelas - Venosnaker - Genocider - Destwilder - Gigazelle - Goldphoenix - Biogreeza - Blancwing - Dragblacker - Psycorogue
Wild Mirror Monsters: Spiders (Dispider - Mispider - Respider - Solospider) - Zelles (Gigazelle - Megazelle - Magazelle - Negazelle - Omegazelle) - Zebraskulls (Iron - Bronze) - Boarders (Wildboarder - Shieldboarder) - Biters (Zenobiter - Terabiter) - Krakens (Bakraken - Wiskraken) - Gulds (GuldThunder - GuldStorm - GuldMirage) - Abyss (Abysshammer - Abysslasher - Abyssodon) - Buzzstingers (Hornet - Bee - Wasp - Frost - Broom) - Sheerghosts (Sheerghost - Raydragoon - Hydragoon) - Deadlemur - Gelnewt - Sonorabuma - Brobajell - Fake Kamen Rider Agito
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