It wasn't until "Getter Robo G" that it was released into the US Syndication as "Force Five: Starvengers". There were other titles.

Great Mazinger, Grendizer and the Getter Robo G team join forces to combat the new threat. But their task becomes more complicated when Dragonsaurus swallows up Boss Borot and makes its way ...

The episodes themselves were taken from the cartoon series Starvengers which itself was the English title for the Japanese animated series Getter Robo G. Starvengers was produced by Jim Terry ...