 In 1973 an animated series based on the manga was made, produced by Yoshinobu Nishizaki and broadcast by Kansai Telecasting Corporation.As with the earlier "Triton of the Sea", Tezuka had little-to-no involvement in this series and "Wansa-kun" ultimately ended up being the last series produced by the original Mushi Production before its bankruptcy.The anime series lasted 26 episodes.