Osamu Dezaki
is a Japanese anime series based on the 1972 eponymous novel, by Atsuo Saitoh and directed by Osamu Dezaki. Its 26 episodes were broadcast on Nippon TV between April 7, 1975 and September 29, 1975 and was animated by Tokyo Movie Shinsha and Madhouse. The first movie, a compilation feature returning to the title of the book the series was based on, was released March 4, 1984 and was animated by Tokyo Movie Shinsha. The series has been adapted into a movie, titled , which was released in Japan on July 20, 1991 and again was animated by TMS. On March 4, 2003 Bandai released a puzzle and action PlayStation game called "Gamba no Bouken: The Puzzle Action".