Original name: ネット版 仮面ライダーオーズ バースX誕生・序章
Release date: March 13, 2022
Movie
Average time: 5 minutes
Genres: Action, Science Fiction, Fantasy
Synopsis: As the ancient king OOO continues his onslaught on humanity, Kougami gathers his former employees to create a resistance... and introduce a new weapon in the fight!