Momotaros's King of the Castle in Burning Red

The popularity of the Imagin characters brings a series of four short episodes called Momotaros's King of the Burning Red Castle (モモタロスのまっかっか城の王, Momotarosu no Makkakka-jō no Ō?), where the Tarōs get into another crazy adventure as they take the Ginjiro out for a spin. The first three episodes are one-minute-long, airing from July 20 to August 3 after Kamen Rider Kiva. The fourth two-minute-long episode showed in theaters alongside Kamen Rider Kiva: King of the Castle in the Demon World and '''Engine Sentai Go-onger: Boom Boom! Bang Bang! GekijōBang!!'''. Toshihiko Seki will reprise his role as the Imagin Momotaros and Kōji Yusa, Masaki Terasoma, and Kenichi Suzumura also reprise their roles as Urataros, Kintaros, and Ryutaros, respectively. There was a "Burning Red Ver." (まっかっかVer., Makkakka Bā?) and a "Yellow Ver." (まっきっきVer., Makkikki Bā?) of the short film, shown at specific theaters based on the announcement that Farewell, Kamen Rider Den-O: Final Countdown would be playing at that theater.

Mini episodes

1. The Mystery of the Castle in the Demon World is Solved! (魔界城の謎を解け！, Makaijō no Nazo o Toke!?)

2. Warriors of Samurai World (サムライワールドの戦士, Samurai Wārudo no Senshi?)

3. Fight! Kaijin Army (戦え！怪人軍団, Tatakae! Kaijin Gundan?)

4. Momotaros's King of the Burning Red Castle (モモタロスのまっかっか城の王, Momotarosu no Makkakkajō no Ō?)