1 Season
3 Episode
RIDER TIME: Kamen Rider Decade VS Zi-O - Season 1 Episode 1 Decade Mansion's Death Game, Chapter 1: The FIRST Stage
- Year: 2021
- Country: Japan
- Genre: Action & Adventure, Sci-Fi & Fantasy, Drama
- Studio: Toei Tokusatsu Fan Club
- Keyword: monster, superhero, gore, super power, death match, kamen rider
- Director: Shotaro Ishinomori
- Cast: Masahiro Inoue, So Okuno, Ryouta Murai, Rihito Itagaki, Ayaka Konno, Kentarou Kanesaki