An inventor's robot is seized by an undersea kingdom to guide their monster god in attacking the surface as retaliation for the nuclear tests that have devastated their society.
Yutaka Hayashi
Hiroshi Jinkawa
Robert Dunham
Emperor Antonio of Seatopia / Motorcycle assailant
Ted Thomas
Emperor Antonio of Seatopia / Narrator / Radio Announcer
Kôtarô Tomita
Lead Seatopian Agent
Mekagojira no gyakushû
1975
