Great Mazinger tai Getter Robo is an anime film that premiered in spring 1975, produced by Toei Animation.

About the production: the story comes from a manga, the film runs about 30 minutes and its current status is "finished".

Its main genres are action, mecha and sci-fi, with themes such as Crossover and Super Robot.

On AniList, Great Mazinger tai Getter Robo has an average score of 56%, an average score, and appears on 1,239 users' lists.

The franchise continues in or follows from: Great Mazinger vs. Getter Robo G: Kuuchuu Dai-Gekitotsu.

From the far end of the universe, the terrifying space monster Gilgilgan attacks the Earth. The Science Fortress Laboratory and the Saotome Institute both fight against this threat. Distracted by their rivalry, Getter Robo and Great Mazinger are forced to retreat from Gilgilgan's sharp fangs, but once they agree to work together they begin their combined attack!

Official synopsis from AniList.