Magma Monster Ghoster, Decisive Battle at Sakurajima (マグマ怪人ゴースター 桜島大決戦 Maguma Kaijin Gōsutā Sakurajima Dai Kessen) is the forty-first episode of the original Kamen Rider series. It is the concluding part of Takeshi Hongo's return arc, he would return to the series full time starting in episode 51.