Demon Dragon of the Heavens Gaiking (大空魔竜ガイキング, Daikū Maryū Gaikingu) was a Super Robot mecha anime series produced by Toei Animation, credited as an original idea by Akio Sugino. However, in reality the original idea was of Go Nagai.Toei deliberately took Nagai out of the credits in order to avoid the payment of royalties.Because of that, Nagai sued Toei and stopped further collaborations with Toei for a long time. The legal battle lasted more than 10 years.Nagai himself confirmed that he was the creator of Gaiking in the Comicon 2007 in Naples, Italy.It ran from April 1976 through January 1977 and consisted of 44 26-minute episodes. Gaiking was notable for being one of the few super robot series to take place in real places outside of Japan, and for being the first Super Robot series to have a mobile carrier for the chief robots. In the USA, Gaiking was part of Mattel's popular Shogun Warriors import toy line of the late 1970s and Jim Terry's Force Five anthology series. In 2005, a sequel titled "Gaiking Legend of Daiku-Maryu" was produced. On March 28, 2010, a Live-Action Movie based on the series, simply entitled, Gaiking, was announced at the 2010 Tokyo Animation Fair. In international production will be helmed by American filmmakers, Jules Urbach and Matthew Gratzner. Gaiking is being prepped for a 2012 world-wide release.