A series of mini-episodes in which the four Imagin from Kamen Rider Den-O promote the theatrical double feature Kamen Rider Kiva: King of the Castle in the Demon World and Engine Sentai Go-onger: Boom Boom! Bang Bang! GekijōBang!!. In addition, the upcoming Saraba Kamen Rider Den-O: Final Countdown is announced.
Episode 1
Episode 1 of King of the Crimson Castle.
Episode 2
Episode 2 of King of the Crimson Castle.
Episode 3
Episode 3 of King of the Crimson Castle.
Episode 4
Originally shown in theaters after Kamen Rider Kiva: King of the Castle in the Demon World and Engine Sentai Go-onger: Boom Boom! Bang Bang! GekijōBang!!, with Ryutaros found by Momotaros as reenactments of the two movies by the Taros are played on the movie screen.
