It is the first anime to feature a 5-unit superhero team. While the animation was produced by Toei Animation (Toei Douga at the time), it was also technically produced by Ishinomori's studio, Studio Zero, that he founded with Fujiko F. Fujio and Shinichi Suzuki. The series was also broadcast in Germany, Spain, and France. Hayao Miyazaki was a key animator on episodes 34 and 38.