ACTION . 1973 . 1h 22m . 6.1/10

Godzilla vs. Megalon_

"A chilling horror classic"

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.

Starring Katsuhiko Sasaki, Yutaka Hayashi, Hiroyuki Kawase
Box Office $20.0M
6.1/10
Rating
$20.0M
Box Office
1h 22m
Runtime
1973
Year
MASSIVE HIT
+2,532% ROI
Profitability
Updated Feb 16, 2026
Godzilla vs. Megalon poster
A chilling horror classic

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.

WHERE TO WATCH

Apple TV A Apple TV 5 countries
G Google Play 1 country
Prime Video P Prime Video 1 country
Max M Max 1 country
ALL REGIONS

DROPTHE_ GOSSIP

Box office
Godzilla vs. Megalon earned $20.0M worldwide on a $760K budget — a 2,532% return on investment.
Cast
Katsuhiko Sasaki stars as Inventor Goro Ibuki in Godzilla vs. Megalon.
Katsuhiko Sasaki →
Year context
Godzilla vs. Megalon was released 53 years ago in 1973.
Godzilla vs. Megalon is a Action, Adventure, Science Fiction film with a runtime of 1h 22m.

CAST (19)

Katsuhiko Sasaki
Katsuhiko Sasaki
Inventor Goro Ibuki
Yutaka Hayashi
Yutaka Hayashi
Hiroshi Jinkawa
Hiroyuki Kawase
Hiroyuki Kawase
Rokuro 'Roku-chan' Ibuki
KM
Kanta Mori
Japan Special Defense Forces Chief
Kotaro Tomita
Kotaro Tomita
Lead Seatopian Agent
UO
Ulf Otsuki
Seatopian Agent
SM
Sakyo Mikami
Truck Driver's Assistant
FI
Fumiyo Ikeda
Man from Unit 1
Robert Dunham
Robert Dunham
Emperor Antonio of Seatopia
GN
Gentaro Nakajima
Truck Driver
RJ
Ralph Jesser
Antonio's Aide (Radio Operator in White)
ST
Shinji Takagi
Godzilla
HO
Hideto Odachi
Megalon
TK
Tsugutoshi Komada
Jet Jaguar
MM
Masachika Mori
Jet Jaguar
Kenpachirō Satsuma
Kenpachirō Satsuma
Gigan (as Kengo Nakayama)
Gorō Naya
Gorō Naya
Emperor Atonio of Seatopia (voice)
EN
Eisuke Nakanishi
Narrator
Haruo Nakajima
Haruo Nakajima
Godzilla (archive footage) (uncredited)

BOX OFFICE

$760K
Budget
$20.0M
Revenue
+2532%
ROI
MASSIVE HIT
Verdict

DETAILS

Release
Status
Released
Runtime
82 min (1h 22m)
Country
Rating
6.1/10 (233 votes)
Budget
$760,000
Box Office
$20,000,000
Profit
+$19,240,000

FREQUENTLY ASKED QUESTIONS

What is Godzilla vs. Megalon about?
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.
How long is Godzilla vs. Megalon?
Godzilla vs. Megalon has a runtime of 82 minutes (1h 22m).
Who stars in Godzilla vs. Megalon?
The cast of Godzilla vs. Megalon includes Katsuhiko Sasaki, Yutaka Hayashi, Hiroyuki Kawase, Kanta Mori, Kotaro Tomita.
How much did Godzilla vs. Megalon make at the box office?
Godzilla vs. Megalon earned $20,000,000 worldwide at the box office. The production budget was $760,000.
What is the rating of Godzilla vs. Megalon?
Godzilla vs. Megalon has a rating of 6.1 out of 10 based on 233 votes on TMDB.

GENRES (4)

Action Adventure Science Fiction Fantasy
SHARE