Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.
Unfortunately the movie Godzilla vs. Megalon is not yet available on Disney Plus.
| Camera | Yuzuru Aizawa | Director of Photography |
| Directing | Jun Fukuda | Director |
| Editing | Michiko Ikeda | Editor |
| Production | Tomoyuki Tanaka | Producer |
| Visual Effects | Teruyoshi Nakano | Special Effects Supervisor |
| Sound | Riichirō Manabe | Original Music Composer |
| Art | Yoshifumi Honda | Production Design |
| Art | Yoshifumi Honda | Art Direction |
| Writing | Jun Fukuda | Screenplay |
| Sound | Masato Shimon | Vocals |
| Sound | Eishiro Hayashi | Sound Recordist |
| Lighting | Masakuni Morimoto | Lighting Technician |
| Crew | Toshiro Aoki | Visual Effects Art Director |
| Writing | Shinichi Sekizawa | Lyricist |
| Visual Effects | Motoyoshi Tomioka | Visual Effects Camera |
| Production | Keisuke Shinoda | Production Manager |
| Directing | Tsunesaburo Nishikawa | Assistant Director |
| Visual Effects | Takeshi Miyanishi | Visual Effects |
| Visual Effects | Shoji Ogawa | Visual Effects |
| Visual Effects | Kazunobu Sanpei | Visual Effects Compositor |
| Crew | Teruyoshi Nakano | Special Effects |
| Crew | Shoji Ogawa | Special Effects |
| Visual Effects | Teruyoshi Nakano | Visual Effects Director |
| Writing | Shinichi Sekizawa | Story |
| Writing | Takeshi Kimura | Original Story |
