UFO Robo Grendizer was the third installment of Nagai’s Mazinger giant robot franchise (after Mazinger Z and Great Mazinger). The original Grendizer anime and manga launched in 1975, and the anime was later imported to the United States as part of Jim Terry’s Force Five project. The anime and manga would also inspire three anime films.
In France, the anime was titled Goldorak when it premiered in 1978. The series helped to boost the impact and popularity of anime in the country. That led to French publisher Microids (formerly Anuman Interactive) and Dynamic Planning announcing an action game last year.
The manga received an animated promotional video in April 2015 to commemorate the launch of the first compiled manga volume, as well as Grendizer’s 40th anniversary.