Icon-zi-o.png This article is about a/an web series in Kamen Rider Zi-O.
Red alert.jpg WARNING: This series contains scenes of mild violence murder. Viewer discretion is advised!

Rider Time: Kamen Rider Decade VS Zi-O -Decade Mansion's Death Game- (RIDER TIME 仮面ライダーディケイド VS ジオウ -ディケイド館のデス・ゲーム- Raida Taimu: Kamen Raidā Dikeido Tai Ji-Ō -Dikeido-Kan no Desu Gēmu-) is the third installment of the Kamen Rider Zi-O Spin-off series that focuses on Tsukasa Kadoya.


Various people with different backgrounds, including an unusual Sougo Tokiwa, are waking up finding themselves stranded in a house on an isolated island and forced to participate in a death game by a mysterious masked clown. After each round, a loser is killed by a monster emerging from mirrors. As the body count gradually increases, a strange passerby suddenly appears.

Continuity and Placement


  1. Chapter 1: The FIRST Stage
  2. Chapter 2: The NEXT Stage
  3. Final Chapter: The FINAL Stage


Kamen Rider Decade Tsukasa Kadoya
Kamen Rider Zi-O Sougo Tokiwa (robot)
Kamen Rider Kuuga Yusuke Onodera
Kamen Rider Diend Daiki Kaito
Kamen Rider Kiva-la Natsumi Hikari



Kamen Rider Ohma Zi-O True Sougo
Another Ryuki Unknown



Suit Actors

International Movie Theaters

  • The film began streaming in China's Mainland on Tencent Video starting on February 9, 2021.


The film's theme song is INSIDE-OUT DECADE ver., performed by both Masahiro Inoue and So Okuno.


External Links

  • to be added


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