Keroro Gunsou: Mushakero Ohirome Sengoku Ranstar Dai Battle

Synopsis

Running for fourteen minutes, this theatrical short was released alongside the third Keroro Gunsou film and serves as a prequel to the Mushakero arc from season five of the anime. Set in Ranstar, the story follows the Keroro platoon as they do battle with the Vipers. Ranstar's world draws inspiration from Japan's Sengoku period, with all characters clad in outfits reminiscent of that era.