Great Mazinger vs. Getter Robo

Great Mazinger vs. Getter Robo
Screenshot of the opening title.
Directed by	Masayuki Akehi
Produced by	Chiaki Imada
Written by	Keisuke Fujikawa
Starring	Akira Kamiya Keaton Yamada Keiichi Noda Toku Nishio
Music by	Chuumei Watanabe Shunsuke Kikuchi
Production company	Toei Doga, Dynamic Production
Release date	March 21, 1975 (1975-03-21)
Running time	30 minutes
Country	Japan
Language	Japanese

Great Mazinger vs. Getter Robo (グレートマジンガー対ゲッターロボ^?, Gurēto Majingā tai Gettā Robo) is an animated film produced by Toei based in the works of Go Nagai and Ken Ishikawa. The film premiered originally in March 21, 1975 (1975-03-21) in Japan. It is a crossover between the super robot anime Great Mazinger and Getter Robo, similar to the previous crossover film Mazinger Z vs. Devilman. The events presented in the film are not considered canon to either of the two series.

The film was also shown in countries where the two TV series were broadcast. It is known as مازنجر الكبير ضد جيتاروبو in Arabic countries, Grande Mazinga contro Getta Robot G in Italy and Gran Mazinger contra Getter Robo in Spain.

When a UFO appears over Japan, both the heroes of Great Mazinger and Getter Robo want to investigate it first, out of a sense of rivalry. Getter finds it first since the Mazinger robot is being repaired. However they are unable to defeat the apparently living vehicle. It had already dropped a metal-eating monster on Japan named Gilgilgan and Great Mazinger confronts it only to be badly beaten. Later, despite the robot pilots' protests, their two bases decide to join forces to stop Gilgilgan as he starts becoming more powerful and begins to change. They make a plan to lure it to an empty island where they can battle it without causing collateral damage. They get Boss to lure the monster there where it eats Boss Borot in the process. The combined heroes almost defeat Gilgilgan until the UFO returns and allows itself to be eaten to cause its own creation to grow to its final form. During the intense battle the heroes manage to find its weak points and destroy Gilgilgan. Afterward they promise to be friends from then on.