Godzilla vs. Gigan ก็อดซิลลา ปะทะ ไกกัน (1972)

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 a theme park. The only thing that can stop them is the combined efforts of Godzilla and Anguirus.