The underground kingdom of Seatopia sends out Megalon, a giant beetle, and Gigan to destroy the above ground dwellers. In an attempt to stop them, an independently thinking robot brings…

Coming to Earth on a fallen meteorite, The microscopic alien life-form Hedorah feeds on Earth's pollution and grows into a Gigantic, ever Evolving, poisonous Gas and acid-secreting monster. Godzilla, Earth's…

Aliens from space plan to conquer the world using space monsters Gigan and King Ghidrah, which they control from their secret headquarters inside the head of the Godzilla-replica building at…