Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders is a 2017 Japanese film in the Movie War line of the Kamen Rider Series. It serves as a crossover between the television series Kamen Rider Build and Kamen Rider Ex-Aid. The film features the series' two lead heroes and their allies, with assistance from Kamen Rider OOO, Kamen Rider Fourze, Kamen Rider Gaim and Kamen Rider Ghost. The film was released nationally in Japan on December 9, 2017.
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