Kamen Rider OOO All Stars: The 21 Leading Actors and Core Medals (2011)
Original title: ネット版 仮面ライダーオーズ ALLSTARS 21の主役とコアメダル
Kamen Rider OOO All Stars: The 21 Leading Actors and Core Medals is a 2011 Japanese-language action movie directed by Takayuki Shibasaki, with a running time of 1h 7m. It stars Shu Watanabe, Ryosuke Miura and Riho Takada.
A series of net movies that were released by Toei to promote the Kamen Rider OOO summer movie, "Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals".