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Created by Go Nagai, Mazinger is a Japanese super-robot franchise consisting of anime, manga and video game adaptations. It began with the manga and tv series Mazinger Z, a worldwide hit, which was known as Tranzor Z in the United States. The first manga version was serialized in Shueisha's Weekly Shōnen Jump from October 1972 to August 1973, and it later continued in Kodansha TV Magazine from October 1973 to September 1974. It was adapted into an anime television series which aired on Fuji TV from December 1972 to September 1974. A second manga series was released alongside the TV show, this one drawn by Gosaku Ota, which started and ended almost as the same time as the show. The success of Mazinger Z led to several sequels and spin-off series, including UFO Robot Grendizer and Mazinkaiser. It was a very popular cartoon in Mexico during the 1980s, where it was dubbed into Spanish directly from the Japanese version, broadcasting all 92 episodes and keeping the Japanese character names intact.