Like Kamen Rider × Kamen Rider W & Decade: Movie War 2010, Movie War Core is split into three parts. The Kamen Rider W portion of the film, written by Riku Sanjo, is titled Kamen Rider Skull: Message for Double (仮面ライダースカル メッセージforダブル Kamen Raidā Sukaru: Messēji fō Daburu). The story features Ryu Terui preparing for his wedding to Akiko Narumi. However, Shotaro Hidari and Philip are distracted by the presence of the male Pteranodon Yummy (プテラノドンヤミー Puteranodon Yamī) who has somehow acquired the Memory Memory. The Pteranodon Yummy uses these powers to reveal to Shotaro and Philip how Shotaro's mentor Sokichi Narumi became Kamen Rider Skull with Shroud's aid,[7] along with his fight against the Spider Dopant (スパイダー・ドーパント Supaidā Dōpanto) and Eren Komori who transforms into the Bat Dopant (バット・ドーパント Batto Dōpanto). Both Dopants are an homage to the first two inhumanoids (Spider Man (蜘蛛男 Kumo Otoko) and Bat Man (蝙蝠男 Kōmori Otoko)) from the original Kamen Rider television series.[8]
The Kamen Rider OOO portion of the film, written by Toshiki Inoue, is titled Kamen Rider OOO: Nobunaga's Desire (仮面ライダーオーズ ノブナガの欲望 Kamen Raidā Ōzu Nobunaga no Yokubō). The Kougami Foundation has discovered the mummified remains of Oda Nobunaga and have created a Cell Medal-based homonculus of the man with his memories. Dubbed Nobunaga (ノブナガ), the Kougami Foundation place him in Eiji Hino's care. However, a bug in the computer software used to resurrect him causes Nobunaga to seek conquest of Japan, using the powers of three black Core Medals given to him by Kiyoto Maki to become a Greeed-like being. Eiji must stop Nobunaga before it is too late until another Pteranodon Yummy starts to interfere.[7]
In the final portion of the film entitled Movie War Core (MOVIE大戦CORE Mūbī Taisen Koa), the evil energy-based giant Kamen Rider Core, is a magma energy-based monster created from the memories of all of the past Kamen Riders. Kamen Riders Double and OOO must team up to defeat Core before the Earth is destroyed.[7]
| Directed by | Ryuta Tasaki |
|---|---|
| Produced by | |
| Written by | |
| Narrated by | |
| Starring | |
| Music by | |
| Studio | Toei |
| Distributed by | Toei Co. Ltd |
| Release date(s) | December 18, 2010 |
| Running time | 100 minutes |
| Country | Japan |
| Language | Japanese |
