|This article is about a/an web series in Kamen Rider Zi-O.|
|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
- Kamen Rider Decade: 10 years after the end of Kamen Rider Decade as Another Ryuki is labelled 2019 and that Decade first mentions Yusuke Onodera, and after Tsukasa's last appearance in Zi-O. It takes place right before the events of Rider Time: Kamen Rider Zi-O VS Decade -7 of Zi-O!-.
|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|
- Tsukasa Kadoya (門矢 士 Kadoya Tsukasa): Masahiro Inoue (井上 正大 Inoue Masahiro)
- Sougo Tokiwa (常磐 ソウゴ Tokiwa Sōgo): So Okuno (奥野 壮 Okuno Sō)
- Yusuke Onodera (小野寺 ユウスケ Onodera Yūsuke): Ryouta Murai (村井 良大 Murai Ryōta)
- Heure (ウール Ūru): Rihito Itagaki (板垣 李光人 Itagaki Rihito)
- Ora (オーラ Ōra): Ayaka Konno (紺野 彩夏 Kon'no Ayaka)
- Swartz (スウォルツ Suworutsu): Kentaro Kanesaki (兼崎 健太郎 Kanesaki Kentarō)
- Misa Kuon (久遠ミサ Kuon Misa): Rena Takeda (武田 玲奈 Takeda Rena)
- Masked Man (仮面男 Kamen Otoko): Tatsuhito Okuda (奥田 達士 Okuda Tatsuhito)
- Yakuza-Style Man: Kazuki Namioka (波岡 一喜 Namioka Kazuki)
- Housewife: Metal Yoshida (吉田 メタル Yoshida Metaru)
- Old Man: Moro Morooka (モロ 師岡 Morooka Moro)
- Kamen Rider Decade: Hirokazu Iwakami (岩上 弘数 Iwakami Hirokazu)
- Kamen Rider Zi-O: Kazuya Okada (岡田 和也 Okada Kazuya)
- Ohma Zi-O:
- Kamen Rider Kuuga: Ryohei Sakai (坂井 良平 Sakai Ryōhei)
- Kamen Rider Diend: Kai Nakayama (中山 甲斐 Nakayama Kai)
- Kamen Rider Kiva-la: Hyakka Takasaki (高嵜 百花 Takasaki Hyakka)
- Another Ryuki: Daisuke Satō (佐藤 太輔 Satō Daisuke)
- "Space Ninja Heure":
International Movie Theaters
- The film began streaming in China's Mainland on Tencent Video starting on February 9, 2021.
- After a trailer that contained a Tsukasa Kadoya subliminal message premiered on October 31st, it was announced at the end of An episode of Kamen Rider Blades (a Kamen Rider Saber spin-off episode on TELASA), that a new collaboration between TELASA and Toei Tokusatsu Fan Club will be new episodes for Kamen Rider Zi-O's spin-off, Rider Time. They both premiered on February 9, 2021, but this one will air on TTFC while the other on TELASA.
- This mini-series features two alumni from Kamen Rider Gaim, albeit as new characters.
- This Rider Time features the return of Yusuke Onodera since his last appearance in Kamen Rider × Kamen Rider W & Decade: Movie War 2010.
- Although Kimito Totani does not reprise his role as Daiki Kaito in this special, stock audio is used for Diend's in-suit scenes.
- to be added