How bad is it? It's just episodes of a children's show mashed together.
Should you see it? It's so weird you have to.
This is episodes 7,8&9 of "Super Giant," making it a sequel to "Atomic Rulers of the World," but it almost makes sense on its own. There is truly an evil brain from outer space and hero Starman must defeat it. The costumes in this are amazing (and distractingly form-fitting), the fight scenes look like no one ever gets touched, the plot doesn't make a whole lot of sense - and there's a plot twist that confused me and 78 minutes of action is retained from three hours of the show. Worth seeking out.