The series was produced by Marvel Productions and Sunbow Productions in association with Japanese studio Toei Animation for first-run syndication. Toei co-produced the show and was the main animation studio for the first two seasons. In the third season Toei's involvement with the production team was reduced and the animation services were shared with the South Korean studio AKOM. The fourth season was entirely animated by AKOM. The series was supplemented by a feature film, "" (1986), taking place between the second and third seasons.