Godzilla vs. Megalon (1973)

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Godzilla vs. Megalon soundtrack

Godzilla Films
Godzilla vs. Gigan
Godzilla vs. Megalon
Godzilla vs. Mechagodzilla
Godzilla vs. Megalon
See alternate titles
The Japanese poster for Godzilla vs. Megalon
Directed by Jun Fukuda
Producer Tomoyuki Tanaka
Written by Jun Fukuda (screenplay),
Shinichi Sekizawa (story)
Music by Riichiro Manabe, Masato Shimon
effects by
Teruyoshi Nakano
Production company Toho Eizo
Distributor TohoJP, Cinema SharesUS
Rating GUS, 1977, TV-14US, 2019, 12UK
Running time 81 minutesJP
(1 hour, 21 minutes)
78 minutesUS
(1 hour, 18 minutes)
Aspect ratio 2.35:1
Rate this film!
(66 votes)

Dreaded Megalon from the undersea kingdom! A miraculous deathblow from the wound-ridden Godzilla! (海底王国のすごいやつメガロ!傷だらけのゴジラ必殺のウルトラC!)

— Japanese tagline

Monster against monster for the lost continent of Mu

— International tagline

GIANT AGAINST GIANT... the ultimate battle!

— American tagline

Godzilla vs. Megalon (ゴジラ対メガロ,   Gojira tai Megaro) is a 1973 tokusatsu kaiju film directed and written by Jun Fukuda from a story by Shinichi Sekizawa, with special effects by Teruyoshi Nakano. Produced by Toho Eizo, it is the 13th installment in the Godzilla series as well as the Showa series. It stars Katsuhiko Sasaki, Yutaka Hayashi, Hiroyuki Kawase, Kanta Mori, Kotaro Tomita, and Ulf Otsuki. The film was released to Japanese theaters by Toho on March 17, 1973, as part of the Spring Toho Champion Festival.[1] Cinema Shares released an edited English-dubbed version of the film to American theaters in 1976.

Underground nuclear testing in the Aleutian Islands damages the undersea kingdom of Seatopia, whose angry inhabitants send their guardian monster Megalon to the surface to seek revenge on humanity. Inventor Goro Ibuki, his brother Rokuro, and his best friend Hiroshi Jinkawa find themselves caught up in the Seatopians' plan, as they plan to use Goro's invention, the robot Jet Jaguar, to guide Megalon. Goro manages to free Jet Jaguar from the Seatopians' control and sends him to Monster Island to recruit Godzilla's help. The stage is set for a colossal tag-team battle when the Seatopians recruit the aid of the evil cyborg kaiju Gigan from the M Space Hunter Nebula Aliens, with Godzilla and Jet Jaguar facing off against Gigan and Megalon. Godzilla vs. Megalon was followed by Godzilla vs. Mechagodzilla in 1974.


An underground nuclear test on Asuka Island in the Aleutian Islands triggers seismic aftershocks felt as far away as Monster Island, where Godzilla, Anguirus, and Rodan are disturbed as the island begins breaking apart. Godzilla and Anguirus try to flee, but Anguirus falls and is pulled into a fissure, leaving Godzilla roaring defiantly at the rest of the collapsing island. A second seismic event occurs at Lake Kitayama in Japan, where inventor Goro Ibuki enjoys a picnic with his friend Hiroshi Jinkawa as his little brother Rokuro rides on a dolphin boat in the lake. A whirlpool forms in the middle of the lake and nearly pulls Rokuro in before Goro and Jinkawa pull him back to shore with a life rope. The three then watch as the lake completely drains in a matter of moments. As they drive home, they worry that these repeated nuclear tests will cause civilization to sink just like the ancient continents of Mu and Lemuria. When they arrive at Goro's home, they are attacked by an intruder who is fought off by Jinkawa. Jinkawa gives chase in his car, but loses the trespasser after he throws a grenade out the window of his car and sets a field ablaze. Back in Goro's lab, he and Rokuro find it trashed but no sign of anything being stolen. When Jinkawa returns, he finds that a button he pulled off the intruder's coat is the same color as a deposit of red sand left behind in the lab. He goes to get the sand tested while Goro completes work on his advanced new robot. Goro completes his new robot, which he names Jet Jaguar, and activates it. The robot wanders aimlessly through the lab, guided by cameras installed in its eyes. Jinkawa reports to Goro that the sand they found comes from an ancient stratum, confusing them both as to just who the intruder was. While Rokuro rides his minibike not far from Goro's lab, he is abducted by the intruder from earlier and his driver, then used as bait for Goro to open the door. The intruder breaks in once more and knocks Goro, Jinkawa, and Rokuro out with his gun, then contacts Seatopia using equipment in the lab.

His message is received in the advanced underwater kingdom of Seatopia, where Emperor Antonio holds a ritual to awaken their guardian Megalon to make war on the surface-dwellers in retaliation for the damage caused by their nuclear tests. Megalon awakens and burrows his way to the surface, where Jet Jaguar, now under Seatopian control, will guide him. Goro and Rokuro awaken inside a container on a truck, which is being driven to the lake where it is to be dumped. Jinkawa awakens in the lab, where he sees the intruder controlling Jet Jaguar remotely. He asks where the man has taken Goro and Rokuro, but he replies that they will be brought to Seatopia where Goro will create other robots like Jet Jaguar for the defense of the kingdom. Jinkawa escapes his binds and subdues the Seatopian agent, forcing him to reveal that the two are being transported in a container truck. Jinkawa sets off to rescue them, but is tailed by two more Seatopian agents. He manages to lose them in a construction area, and continues to the lake. With Megalon sighted on the surface, the two truck drivers are hesitant to continue approaching the lake, only to be held at gunpoint by the Seatopian agent who hired them. Thinking quickly, they throw him out of the truck and prepare to dump their cargo into a dam. Jinkawa arrives just in time and asks the drivers to help him save Goro and Rokuro, but the two tell him to screw himself and steal his car. Jinkawa mans the truck and tries to get the container clear, only for Megalon to burst through the dam. Timing it perfectly, Jinkawa drops the container onto Megalon's hand, which causes it to go flying into the distance. Jinkawa reunites with Goro and Rokuro and finds they are okay. Goro meets with the JSDF and informs them he can get the robot guiding Megalon under his control. He is flown to Jet Jaguar in a helicopter and uses a remote control device to order the robot to seek Godzilla's help. Jet Jaguar complies and flies to Monster Island. With this turn of events, Antonio contacts the M Space Hunter Nebula Aliens and asks for Gigan's help against Godzilla.

Without his guide, Megalon begins to act erratically and jump around wildly. The JSDF confronts him, but is quickly wiped out by his napalm and horn laser. Megalon reaches Tokyo and devastates the metropolis unopposed. Fortunately, Jet Jaguar reaches Godzilla and informs him of the situation, prompting Godzilla to set off for the mainland. Jet Jaguar returns to Goro's lab, which the three have successfully taken back from the Seatopian agent. Jet Jaguar confirms his success in reaching Godzilla before flying away. Goro remarks that Jet Jaguar has seemingly developed a will of his own, and leaves with the others to observe him. Jet Jaguar lands in front of Megalon, who laughs at the diminutive robot before Jet Jaguar grows to Megalon's size right before the kaiju's eyes. Jet Jaguar punches Megalon and begins battling with him to stall his rampage until Godzilla arrives. Jet Jaguar holds his own until Gigan arrives to back up Megalon. The two kaiju combined overwhelm Jet Jaguar, but Godzilla soon arrives to help. Godzilla battles both Gigan and Megalon, allowing time for Jet Jaguar to get back into the fight. Godzilla and Jet Jaguar's combined efforts turn the battle in their favor, prompting Gigan to beat a quick retreat. Jet Jaguar and Godzilla waste no time in beating on Megalon until he finally retreats back to Seatopia. The Seatopians close all fissures to the surface and end their war on the surface world. Victorious, Godzilla and Jet Jaguar shake each other's hands and go their separate ways. Jet Jaguar returns to human size and reunites with his creator, who finds his free will is seemingly gone. But perhaps one day it will return if the world faces another similar threat. The three then return home happily with Jet Jaguar.


Main article: Godzilla vs. Megalon/Credits.

Staff role on the left, staff member's name on the right.


Actor's name on the left, character played on the right.

International English dub

  • Chris Hilton   as   Goro Ibuki
  • Warren Rooke   as   Hiroshi Jinkawa / truck driver's assistant / Seatopian agent in gray
  • Ted Thomas   as   Antonio / narrator / radio announcer
  • Ron Oliphant   as   Seatopian agent in black[2]



Weapons, vehicles, and races


In mid- to late 1972, Toho held a contest for elementary school children to design a robot who would appear in the next Godzilla film.[3] The winner's creation was named "Red Alone," which superficially resembled both Ultraman and Mazinger Z. The character was renamed Jet Jaguar for its inclusion in the film.

While Godzilla vs. Megalon was made over the course of six months, its allocation of time was unusual.[4] As special effects director Teruyoshi Nakano recalled, "That movie seemed to take forever to develop, then it went into production without enough preparation."[5] Due to the time constraints, screenwriter Shinichi Sekizawa simply provided a story outline, while director Jun Fukuda wrote the script. Principal photography started immediately thereafter and took place over approximately three weeks.


Main article: Godzilla vs. Megalon/Gallery.


Main article: Godzilla vs. Megalon/Soundtrack.

Alternate titles

  • Godzilla vs. The Megalon Brothers: The Undersea Kingdom's Annihilation Strategy (ゴジラ対メガロ兄弟 海底王国全滅作戦,   Gojira tai Megaro Kyōdai Kaitei Ōkoku Zenmetsu Sakusen, early Japanese title)[6]
  • Godzilla vs. Megalon: The Undersea Kingdom's Annihilation Strategy (ゴジラ対メガロ 海底王国全滅作戦,   Gojira tai Megaro Kaitei Ōkoku Zenmetsu Sakusen, early Japanese title)[7]
  • Insect Monster Megalon vs. Godzilla: The Undersea Kingdom's Annihilation Strategy (昆虫怪獣メガロ対ゴジラ 海底王国全滅作戦,   Konchū Kaijū Megaro tai Gojira Kaitei Ōkoku Zenmetsu Sakusen, early Japanese title)[7]
  • Gorgo and Superman Meet in Tokyo (Gorgo y Superman se citan en Tokio; Spain)
  • Planetary Titans (Titanes planetarios; Mexico)
  • Godzilla 1980 (Godzilla 1980; France; French Belgium)
  • King Kong: Demons from Outer Space (King Kong — Dämonen aus dem Weltall; West Germany)
  • At the Borders of Reality (Ai confini della realtà; Italy)
  • Godzilla Against Megalon - At the Borders of Reality (Godzilla contro Megalon - Ai confini della realtà; Italian video title)
  • Godzilla Against Megalon (Godzila protiv Megalona; Yugoslavia; Godzila proti Megalonu; Yugoslavia (Slovenia); Godzilla contra Megàlon; Spain (Catalonia); Godzilla contra Megalon; Netherlands; Spanish DVD title)
  • Superman in Space (סופרמן בחלל; Israel)
  • Monsters from Other Spaces (Monstros de Outros Espaços; Brazil)
  • Godzilla Faces Megalon (Godzilla Enfrenta Megalon; Brazilian video title)
  • The Flying Superman vs. Monsters (Ο Ιπτάμενος Υπεράνθρωπος εναντίον Τεράτων; Greece)
  • The Beast That Shakes the World (Dünyayı Titreten Canavar; Turkey)

Theatrical releases

View all posters for the film here.

  • Japan - March 17, 1973[1]   [view poster]Japanese poster
  • United States - April 28, 1976   [view poster]American poster
  • West Germany -1973   [view poster]German poster
  • Brazil - March 24, 1974
  • Netherlands - August 21, 1974
  • Spain - February 8, 1975   [view poster]Spanish poster
  • Australia - 1976   [view poster]Australian poster
  • France - October 26, 1976   [view poster]French poster
  • Italy - 1976   [view poster]Italian poster
  • Mexico - 1976   [view poster]Mexican poster
  • Belgium   [view poster]Belgian poster
  • Yugoslavia   [view poster]Yugoslav poster
  • Israel   [view poster]Israeli poster
  • Greece   [view poster]Greek poster
  • Turkey   [view poster]Turkish poster

Foreign releases

U.S. release

U.S. Godzilla vs. Megalon poster

In 1976, Cinema Shares released a dubbed version of Godzilla vs. Megalon theatrically. Riding the coattails of Dino De Laurentiis' 1976 big-budget King Kong remake, poster art showed Godzilla and Megalon battling on top of the World Trade Center, despite the fact that no scenes in the film were set in New York.

To obtain a G-rating from the MPAA, Cinema Shares cut three minutes of footage, including:

  • The opening credits.
  • Rokuro being abducted by Seatopian agents, who pull him into their car.
  • Rokuro getting shot by the Seatopian agent's gas gun.
  • Scenes in the container truck that showed pornographic material on the back wall (there was more dialogue in the scenes that added to the story, thus making these cut scenes somewhat confusing).
  • A fight scene between Hiroshi and the lead Seatopian agent.
  • A scene of the bearded Caucasian Seatopian agent being thrown down a cliff by the truck drivers.
  • Some scenes of bloody violence, when the toy jet plane (which Rokuro borrowed from the hobby shop) flies into the lead Seatopian agent's face, there was a brief shot of blood dripping from his face and when Hiroshi says "Get him!", Rokuro swings on the chained picture boxes in Goro's lab and strikes the agent above the chest.
  • The Seatopian agent being crushed by a boulder hurled by Megalon.
  • Dialogue: "What the hell's that?" and "Go to hell!"

With this being the first of the three Cinema Shares Godzilla releases, the publicity factor was high. Along with the poster, buttons with one of the four kaiju's faces on them were released. A couple of weeks before the release of Godzilla vs. Megalon, Cinema Shares had a comic book released to promote the film, but in it there are numerous inconsistencies with the film present in the monsters' names, locations, and events. The theatrical trailer for the film also contains these changes, such as Jet Jaguar being called "Robotman."

The Cinema Shares version was frequently shown on television and released on VHS throughout the 1980s and 1990s, with numerous companies operating under the erroneous assumption that the film had fallen into the public domain.[8] Alpha Video and Passion Productions released the same version on DVD in the early 2000s. In 2002, the uncut international version of the film aired on the Sci-Fi Channel.[9] Media Blasters' Tokyo Shock label released the film on DVD and Blu-ray in 2012, with both the English and Japanese audio tracks simply using the same Japanese video track. The 2019 Criterion Collection Godzilla: The Showa-Era Films, 1954-1975 box set took the same approach.

United Kingdom release

Godzilla vs. Megalon was never released theatrically in the UK, remaining unseen until it aired on Channel 4 in 1990.[10] This was followed by VHS releases by PolyGram Video in 1992 (paired with Godzilla vs. Gigan) and its imprint 4 Front in 1998. These releases was uncut, save for the removal of the opening Toho and/or Toho Eizo logos. The latter incudes the Toho logo with the opening music from Godzilla vs. Gigan briefly before fading out into the beginning of the film.


Godzilla vs. Megalon has been widely disliked among critics and fans. Common sources of criticism revolve around the film's extensive use of stock footage, the Godzilla suit used in the film, and the film's overall tone.

Video releases

Before Media Blasters acquired the rights to Godzilla vs. Megalon, numerous American home video companies distributed fullscreen versions of the Cinema Shares cut of the film on unlicensed VHS and DVD releases, operating under the mistaken impression that it had fallen into the public domain. The UK VHS releases of the film, however, are uncut.

Power Multimedia DVD (1999)

  • Region: N/A
  • Discs: 1
  • Audio: English (Mono), Mandarin (Mono)
  • Subtitles: Chinese (traditional and simplified)
  • Special features: None
  • Notes: Presents an unaltered 16mm transfer of the film's international version, albeit cropped to 1.33:1. Out of print.

Media Target DVD (2002)

  • Region: 2
  • Discs: 1
  • Audio: German (2.0 Mono)
  • Subtitles: None
  • Special features: Trailers, photo gallery, production notes, information on the cast and crew

Toho DVD (2004)

Aventi DVD (2006)

  • Region: 2
  • Discs: 2
  • Audio: Japanese (2.0 Mono)
  • Subtitles: French (forced)
  • Special features: None
  • Notes: Packaged with Godzilla vs. Mothra. Cropped to 1.33:1.

Madman DVD (2006)

Tokyo Shock DVD/Blu-ray (2012/2014)

  • Region: 1 (DVD) or A/1 (Blu-ray)
  • Discs: 1
  • Audio: Japanese (2.0 Mono, 5.1 Surround), English (2.0 Mono)
  • Special features: None (standard version) OR audio commentary by Steve Ryfle and Stuart Galbraith IV, image gallery (13 minutes), interview with Ted Thomas (30 minutes), Toho trailer reel (37 minutes), Godzilla vs. Megalon TV spots and trailers, opening credits from the U.S. theatrical print (accidental release of the DVD version only)
  • Notes: Both versions of the film use the same Japanese video track. Difficulties in securing Toho's approval for this film's special features led to Media Blasters releasing Godzilla vs. Megalon without any;[11]however, the duplicating facility the company used accidentally pressed over 500 DVDs using the original digital files. Because this version of the DVD release was an accident, the special features are not mentioned on the back cover and the only way to tell if a given disc possesses them is to play it. The standard version was released twice on DVD, the first time in 2012 as a standalone title and the second time in 2014 as part of a 2-in-1 box set called Godzilla Stomp Box, which also contained the 2014 Tokyo Shock standard DVD release of Destroy All Monsters.

Toho Blu-ray (2014)

  • Region: A/1
  • Discs: 1

The Criterion Collection Blu-ray (2019) [Godzilla: The Showa-Era Films, 1954–1975]



Godzilla vs. Megalon Japanese trailer
Godzilla vs. Megalon U.S. trailer #1
Godzilla vs. Megalon U.S. trailer #2
Godzilla vs. Megalon U.S. TV spot


Credits for the international export version (red)
Credits for the international export version (white)
West German theatrical credits


YouTube Movies & Shows upload of Godzilla vs. Megalon (English dub)
Audio commentary by Steve Ryfle and Stuart Galbraith IV
Filming locations revisited in 2019


  • According to the DVD audio commentary for this film by Steve Ryfle and Stuart Galbraith IV, the nuclear detonation at the beginning of the film may be a reference to Cannikin, a test of a 5-megaton hydrogen bomb conducted on the island of Amchitka in the Aleutian Islands of Alaska on November 6, 1971. It was the largest American underground nuclear test.
  • Godzilla vs. Megalon is the only Godzilla film in which there are no named female characters and no female characters with a speaking role. The only women in the film are the Seatopian dancers, Antonio's court lady, and some of the villagers fleeing Megalon, with the villagers appearing via stock footage from Mothra vs. Godzilla.
  • For the West German release of this film, Jet Jaguar was renamed "King Kong." However, there is no connection to the real King Kong beyond his name. Contrary to a widespread misconception, the dub does not say the character is a giant ape wearing a robot suit.
  • According to production stills, in one scene, where Godzilla was meant to beat Gigan and Megalon with a tree, he was going to have a telephone pole in his mouth. 
  • When Megalon attacks fighter jets that are firing at him, stock footage of Gigan's hooks from the previous film are used. In addition, a shot of Gigan's lower body smashing through a freeway is used to depict Megalon stomping through the city.
  • The scene where Megalon attacks Tokyo is almost entirely accomplished with stock footage. The only original shots that were not taken from Ghidorah, the Three-Headed Monster or Godzilla vs. Gigan are close-up shots of Megalon.
  • Godzilla vs. Megalon was released at the Spring Toho Champion Festival on March 17, 1973 alongside a film called Prominent Youth about a boy's soccer team, an early animated film from Hayao Miyazaki and Isao Takahata called Panda! Go Panda!: The Rainy Day Circus and Jungle Kurobe.
  • Godzilla vs. Megalon was featured on Season 2 of the movie-mocking television series Mystery Science Theater 3000. The episode is known for its comedic translation of the "Godzilla and Jet Jaguar: Punch! Punch! Punch!" song at the end of the film.

External links


This is a list of references for Godzilla vs. Megalon. These citations are used to identify the reliable sources on which this article is based. These references appear inside articles in the form of superscript numbers, which look like this: [1]

  1. 1.0 1.1 Toho WEB SITE - MOVIE DATABASE 作品「ゴジラ対メガロ(ごじらたいめがろ)」
  2. Harley Thomas (24 April 2023). "Ron Oliphant, Hong Kong voice actor, As Agent Black from Godzilla Vs. Megalon". YouTube.
  3. The Japanese Giant Monster Festival by Keith Aiken
  4. Guy Mariner Tucker (1996). Age of the Gods: A History of the Japanese Fantasy Film. Feral House. p. 215.
  5. Stuart Galbraith IV (1998). Monsters Are Attacking Tokyo! The Incredible World of Japanese Fantasy Films. Feral House. p. 115.
  6. Tn megalon script000collect.jpg
    Cyberkids1954.com (archive)
  7. 7.0 7.1 Toho Special Effects Movie Complete Works. villagebooks. 28 September 2012. p. 158. ISBN 9784864910132.
  8. Pusateri, Richard. "GODZILLA VS MEGALON Special Edition DVD "Extras" Detailed". SciFi Japan. Retrieved 5 March 2023.
  9. Aiken, Keith. "GODZILLA VS MEGALON Region 1 DVD/Blu-ray Rumors False". SciFi Japan. Retrieved 5 March 2023.
  10. Branaghan, Sim. "Monsters From An Unknown Culture: Godzilla (and friends) in Britain 1957-1980 by Sim Branaghan – Part 2". SMGuariento.com. Retrieved 5 March 2023.
  11. The Great GODZILLA VS MEGALON Mix-Up Mystery - SciFi Japan
  12. Godzilla: The Showa-Era Films, 1954-1975 | The Criterion Collection


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