Satoru Kitaoka is a prominent figure in the world of Japanese mixed martial arts, known not only for his competitive spirit but also for his compelling appearances in documentary films that capture the essence of the sport. His performances in "RIZIN 15" (2019) and "RIZIN 24" (2020) have made significant waves among collectors of physical media, as these releases provide an intimate glimpse into the high-stakes world of MMA. Collectors are particularly drawn to these titles due to their limited edition covers and special features that highlight Kitaoka's journey and pivotal moments in the sport. The RIZIN series has become a sought-after collection for enthusiasts who appreciate the intersection of sports and cinematic storytelling. Kitaoka's contributions not only showcase his talents but also serve as historical documentation of a transformative era in MMA, making these films essential additions to any serious collector's library.