Pretty standard sci-fi fare for the time, with giant monsters and Tetsujin-type giant robots. Decent for what it is, but with only an hour runtime. Miyazaki worked on this anime, and you can tell by the art style, especially the main heroine who unfortunately appears for only the last 20 minutes. Character and plot development is minimal, and the film could've benefitted from an extra 30 minutes. Compared to anime just a few years ago, the animation is great and looks more like anime would in the 70s. There's an environmentalist or anti-capitalist message in this film, but because of the short runtime it's hardto make sense of it here.