Sometimes the various traditions that Toei have set out for the Kamen Rider and Super Sentai franchises can seem so set in stone that it feels like there's little room for innovation, but every so often something exciting and different does manage to slip in and become the new norm. One such example is the recent string of teaser films that have been produced - attached to various movie offerings and airing just ahead of the full show release. Mashin Sentai Kiramager was the first series to get one with its Episode ZERO in 2020, with Kikai Sentai Zenkaiger following with Red Battle! All Sentai Rally! this year. However this year also saw Kamen Rider Revice get in on the action with  Kamen Rider Revice: The Movie  - a 25 minute mini-movie attached to giant crossover anniversary film Saber + Zenkaiger: Superhero Senki .