Kamen Riders Build and Ex-Aid team up with the legendary heroes of the Heisei Generation - OOO, Fourze, Gaim, and Ghost.
Movie tag line: "The strongest heroes gather! In the face of the evil scientist's plan to exterminate humanity, 6 warriors will stand up and fight."
Production companies:
Character: Sento Kiryuu / Kamen Rider Build
Character: Emu "M" Houjou / Kamen Rider Ex-Aid
Character: Eiji Hino / Kamen Rider OOO
Character: Gentarou Kisaragi / Kamen Rider Fourze
Character: Kouta Kazuraba / Kamen Rider Gaim
Character: Takeru Tenkuuji / Kamen Rider Ghost
Character: Ryuuga Banjou / Kamen Rider Cross-Z
Character: Misora Isurugi
Character: Hiiro Kagami / Kamen Rider Brave
Character: Taiga Hanaya / Kamen Rider Snipe
Character: Dan Kuroto / Kamen Rider Genm
Character: Asuna Karino / Poppy Pipopapo
Character: Kiriya Kujou / Kamen Rider Lazer
Character: Nico Saiba
Character: Parado
Character: JK
Character: Onari Yamanouchi
Character: Sawa Takigawa
Character: Takumi Katsuragi
Character: Justaway Shiihashi
Character: Ankh
Character: Chuta Ohsugi
Character: Gentoku Himuro
Character: Souichi Isurugi
Character: Kaisei Mogami · Kaiser / Kaisei Mogami · Kaiser Reverse / Bikaiser (voice)
Character: Musashi Ghost (voice) / Nobunaga Ghost (voice) / Grim Ghost (voice)
Character: Kamen Rider Grease (voice)
Character: Build Driver (voice)
Character: Mezool (voice)