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Jet Jaguar

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Jet Jaguar
Jet Jaguar in Godzilla vs. Megalon
Name information
Alternate names Jet-Jaguar, Jet-Jagger,[1] JetJagger,[2] JJ,GZB Robotman, Red Alone, Red Aaron,[3] Jet Alone,[3] Aceman,[3] King Kong*, Superman*
Subtitle(s) Electronic Robot
(電子ロボット,   Denshi Robotto)[4][5]
Physical information
Species Humanoid size-changing robot
Height 1.8 meters (Normal)[5][6]
50 meters (Giant)[5][6][7]
Weight 150 kilograms (Normal)[5][6]
25,000 metric tons (Giant)[5][6][7]
Forms Normal Size, Giant Size
Affiliation information
Controlled by Goro Ibuki, Seatopians (temporarily)
Relations Goro Ibuki (creator),
Dr. Roborobo (creator)GZB
Allies Godzilla, Kiryu,GRoE MOGUERA,GRoE Zilla,GRoE King Caesar,GRoE Rodan,GRoE Anguirus,GRoE Kumonga,GRoE Gorosaurus,GRoE Baragon,GRoE Kamoebas,GRoE Varan,GRoE Sanda,GRoE Gaira,GRoE Kamacuras,GRoE Minilla,GZB LittleGZB
Enemies Megalon, Gigan, Orga, Destoroyah, Trilopod, Magita
Real world information
Conceived by Masaaki Sano
Written by Jun Fukuda, Shinichi Sekizawa
Designed by Masaaki Sano, Teruyoshi Nakano
Modeled by Nobuyuki Yasumaru, Tomoki Kobayashi
Played by Tsugutoshi Komada, Masachika Mori
Other information
First appearance Latest appearance
Godzilla vs. Megalon Godziban
More roars

Jet Jaguar (ジェットジャガー,   Jetto Jagā) is a heroic robot who first appeared in the 1973 Toho Godzilla film Godzilla vs. Megalon.

An advanced robot created by Japanese inventor Goro Ibuki, Jet Jaguar was stolen by the Seatopians and used to guide their guardian monster Megalon in his destruction of the surface world. Goro managed to sever the Seatopians' control of the robot, only to discover that Jet Jaguar had become self-aware and altered his own programming. Jet Jaguar used his newfound power to recruit the assistance of Godzilla, then grew to gigantic size to battle Megalon and Gigan. With Godzilla's aid, Jet Jaguar drove off the villainous monsters and saved the Earth, then returned to his creator.


Across Japanese media, Jet Jaguar's name is variably spelled with (ジェット・ジャガー) and without (ジェットジャガー) an interpunct. Jet Jaguar is Toho's trademarked English name for the character, though a similar situation exists wherein English language media includes a hyphen (Jet-Jaguar) in the robot's name. Examples using "Jet Jaguar" include the Atari and Pipeworks games Godzilla: Save the Earth and Godzilla: Unleashed, while instances of media using Jet-Jaguar ranges from the 1998 book The Official Godzilla Compendium and the 2014 Godzilla video game. Jet Jaguar is also sometimes erroneously given the English name Jet-Jagger or the variant JetJagger, typically in Japanese media.


A promotional badge for Seiyu's monster design campaign, featuring Red Alone artwork.[3]

Jet Jaguar was the result of a monster design campaign held by Seiyu from the end of 1971 to January of the following year, called "Children Monster University" (ちびっこ怪獣大学,   Chibikko Kaijū Daigaku), which was co-sponsored by Toho and Tsuburaya Productions.[8] In March of 1972,[8] a number of the kids who had submitted designs for the campaign were invited on to the Japanese television program Katsura Kokinji's Afternoon Show, where the winner was to be announced and a suit inspired by the winning design revealed.[9] On this show, it was also announced that the winner of the competition would have their design featured in Toho's next Godzilla film, which would ultimately become Godzilla vs. Megalon.[9] The winner of the contest, a boy named Masaaki Sano (佐野雅昭), had submitted a drawing of a monster called Red Alone (レッド·アローン,   Reddo Arōn), which also went through several other names including Red Aaron (レッドアーロン,   Reddo Āron), Jet Alone (ジェット・アローン,   Jetto Arōn), and Aceman (エースマン,   Ēsuman).[3] The suit created for Red Alone bore only a slight resemblance to Sano's design with a red, yellow and blue color scheme, as opposed to his white design.[9] This suit would be used further for publicity appearances at events sponsored by Seiyu[9] as well as on other television shows.[3]

Jet Jaguar concept art for
Godzilla vs. Megalon, often incorrectly attributed to Akihiko Iguchi.

Red Alone was later changed into a robot and included in the 1972 Godzilla vs. Megalon draft, Insect Monster Megalon vs. Godzilla: The Undersea Kingdom's Annihilation Strategy, in which he is described as having a "sharp figure."[8] This version of the character was scrapped along with the script, however, and Teruyoshi Nakano was recruited to supervise a redesign of Red Alone, ultimately leading to Jet Jaguar.[9] The concept drawings of Jet Jaguar and Megalon are often attributed to illustrator Akihiko Iguchi, however Iguchi has openly denied having any involvement in Godzilla vs. Megalon whatsoever, leaving the true identity of the monsters' designer or designers a mystery.[10][11] Nakano was initially reluctant in reinventing Red Alone as Jet Jaguar, due to feeling that there were already too many Ultraman-like heroes appearing at the time. However, he became inspired after deciding that rather than focusing on making Jet Jaguar's design attractive, he would aim for it to be deliberately unattractive and obnoxious.[9] Jet Jaguar's concept art has him sporting pronounced, feather-like objects protruding from his head in addition to his antennae, which was actually carried over from Red Alone's suit design.[3] Ultimately, though, the only trait of Red Alone which would survive the redesign was the pattern and coloration of its torso.

Jet Jaguar's suit was jointly-modeled by Nobuyuki Yasumaru and Tomoki Kobayashi,[12] painted by Takashi Naganuma,[10] and portrayed by Tsugutoshi Komada and Masachika Mori.[12] The suit's body was constructed of wetsuit material which was then covered in sheets of foam rubber[8] and was reportedly very flammable, so the crew had to be extra careful during filming of scenes where pyrotechnics were used.[9] Jet Jaguar's head was created by Nobuyuki Yasumaru using primarily FRP,[13] however material from car taillights[14] which was procured from a nearby car dealership was also used for the mask's eyes.[13] The head was created in two halves which would be fastened together using bolts, thus making it impossible for the suit actor to remove the mask on their own.[13] A motor was also installed in the head to control the mechanism of Jet Jaguar's antennae extending.[3] For the close-up shots of Jet Jaguar taking off into the air, the suit actor would stand on wooden boards and be raised up in the air by a number of staff members.[3]

At least two miniature flying props were created for Jet Jaguar's flying scenes: a 1/2 scale prop made of FRP, and a much smaller version which was used to represent the robot flying at human-size next to the giant Megalon.


Jet Jaguar carries Rokuro Ibuki on his shoulders.

Jet Jaguar fights to protect others, and acts very much like a superhero. When not fighting, he is shown to be very friendly towards others, offering handshakes, and even carrying a child on his shoulders. According to Godzilla: Unleashed, Jet Jaguar fights as a reserve member of the Global Defense Force, offering his services to humanity in times of need. In Godzilla: Rulers of Earth, he autonomously enters battles to aid humanity's military forces and the monsters of Earth. Jet Jaguar even joins CKR's forces in an assault on the Cryogs' base, communicating with others using a "thumbs-up" gesture.


In Godzilla vs. Megalon, Jet Jaguar was created by scientist Goro Ibuki. Jet Jaguar eventually became self-aware and gained the ability to alter his own programming, but chose to use his powers to fight for good. The game Godzilla: Unleashed references this origin, stating in its bio for Jet Jaguar that he was created by a Japanese scientist for unknown reasons. Godzilla Unleashed: Double Smash even explicitly mentions Goro Ibuki by name.

Godzilla: Rulers of Earth never explains Jet Jaguar's exact origins, but it is implied he has some connection to the Cryogs, as they seemed to recognize him when he boarded their ship. In an interview, writer Chris Mowry explained that the idea for Jet Jaguar's origin was that he was built by a survivor from his homeworld that was destroyed by the Cryogs, specifically calling him the "Superman" of his planet. His creator adopted a small girl that would grow up into Yumi. His creator, however, perished in Godzilla's first attack during the events of Godzilla: Kingdom of Monsters.[15]


Showa series

Godzilla vs. Megalon

Jet Jaguar battles Megalon in Godzilla vs. Megalon

After an underground nuclear test wreaked havoc on their city, the kingdom of Seatopia prepared to attack the surface world with their monster-god Megalon. Looking for a way to guide Megalon during his rampage, two Seatopian agents ransacked the home of Goro Ibuki, an inventor working on a humanoid robot. When Goro, his brother Rokuro, and his friend Hiroshi Jinkawa interrupted them, the agents quickly subdued them and made their escape. Soon after, Goro put the finishing touches on his robot, which he named Jet Jaguar.

The Seatopian agents struck again, this time seizing control of Jet Jaguar. One attempted to dispose of Goro and Rokuro in a shipping container, while the other stayed at the house to direct the robot. He revealed that the Seatopians planned to build an army of Jet Jaguars. Hiroshi escaped and set off to rescue Goro and Rokuro. In the meantime, Jet Jaguar began to steer Megalon towards Tokyo. Along the way, the insect attacked the Ogochi Dam, inadvertently swatting Goro and Rokuro to safety. While Goro had a handheld control device for Jet Jaguar that could override the Seatopians' commands, he discovered that the range was too limited. After he explained the situation to the JSDF, they let him board a helicopter to intercept the robot. Just before they could collide, Goro regained control of Jet Jaguar and sent him to Monster Island to convince Godzilla to join the fight.

Though disoriented at first, Megalon quickly got back on task. To ensure they had the advantage against Godzilla, the Seatopians enlisted Gigan. As Megalon approached Goro's house, Jet Jaguar reunited with his family, then flew off to face the monster, ignoring Goro's commands. Somehow, the inventor mused, Jet Jaguar had achieved free will. Megalon learned that he had achieved something else: the ability to turn himself into a 50-meter fighting machine.

Jet Jaguar and Megalon found themselves evenly matched until Gigan arrived on the scene. The robot took a beating from the duo, but their gloating came to an end when Godzilla stormed in. In the ensuing tag team match, Jet Jaguar flew Godzilla out of a ring of fire created by Megalon's napalm bombs, broke Gigan's arm, and held Megalon in place so the King of the Monsters could deliver a pair of sliding kicks. After the two villains retreated, Godzilla returned to Monster Island, while Jet Jaguar returned to his family, shrinking back to human size.

Godzilla Island

Jet Jaguar in Godzilla Island

Jet Jaguar appears extensively in the TV series Godzilla Island. In the show, Jet Jaguar is represented as three distinct robots; a Silver Jet Jaguar, who was a fighting machine that battled alongside Mechagodzilla and Moguera, a Medical Jet Jaguar, who tended to the injured monsters, and a Fire Fighter Jet Jaguar, who worked to put out the fires caused by the monsters' fights and played a key role in defeating Dororin.


Size Changing

Jet Jaguar can change his size at will. He can grow from his normal height of 1.8 meters to a height of 50 meters which allows him to go toe-to-toe with kaiju such as Megalon and Gigan. In Godzilla: Save the Earth and Godzilla: Unleashed, Jet Jaguar becomes immune to energy attacks after shrinking to a specific size and can rapidly punch enemies to deal damage. In these games he can also grow to an extremely large height on par with Biollante, allowing him to effortlessly kick enemies into the air. In these games, Jet Jaguar can only attain these extremely small and large sizes temporarily, and will revert to his default height after a few moments.

In Godzilla: Rulers of Earth, Jet Jaguar uses his size-changing ability to his advantage against Orga, flying down the monster's throat while human-sized and then growing to his gigantic size, tearing Orga apart from the inside.


Jet Jaguar can fly at speeds up to Mach 3.5.[16] Even when weighed down by carrying Godzilla, he is able to fly with no visible signs of stress.

Physical Strength

Jet Jaguar lifting Gigan in Godzilla vs. Megalon

Jet Jaguar is a skilled hand-to-hand combatant. He is incredibly strong, being able to lift and throw Gigan and hold his own in combat with Megalon. His combat skills are enhanced in Godzilla: Save the Earth and Godzilla: Unleashed, where he fights using an array of martial arts-based attacks that allow him to lift and throw enemies as well as launch them into the air. In Godzilla: Rulers of Earth, Jet Jaguar is able to knock out Godzilla with a single punch to the face.


After becoming autonomous and escaping the control of the Seatopians, Jet Jaguar is capable of understanding the commands of Goro Ibuki and communicating with Godzilla using hand gestures. In Godzilla: Rulers of Earth, he retains the ability to cooperate with humans and also strategically uses his size-changing abilities to defeat his foes. He flies down Orga's throat while human-sized and expands to kaiju size, tearing the monster apart from the inside. Later, Jet Jaguar shrinks down and pilots Kiryu to fire the Absolute Zero Cannon and instantly freeze Destoroyah.


Jet Jaguar withstands a great deal of punishment from both Megalon and Gigan but continues to fight and eventually overcomes them with Godzilla's assistance. In Godzilla: Rulers of Earth, he shrugs off attacks such as a point-blank blast from Godzilla's atomic breath and holds his own against several Trilopods.


Jet Jaguar has two powerful spotlights installed in his eyes which he can use to search for or blind enemies.


In the game Godzilla: Save The Earth, Jet Jaguar's rage attack involves him spinning around until a tornado forms around him. This tornado is powerful enough to push away and instantly knock down monsters by simply touching them.

Plasma Clap

In Godzilla: Save the Earth and Godzilla: Unleashed, Jet Jaguar's hands glow with green energy as he charges them before clapping them together and firing an energy beam. This may be a reference to Ultraman's Specium Ray.

Hand Ray / Missiles

In Godzilla: Trading Battle, Jet Jaguar can utilize the generic "laser" and "missile" attack cards. These manifest as a blue laser emitted from the palm of his hand and missiles fired from his chest, respectively.


While Jet Jaguar is able to hold his own against most opponents in a one-on-one fight, he is susceptible to being overwhelmed by multiple enemies. He is overpowered and rendered helpless against Megalon and Gigan before Godzilla comes to his aid. He is also overwhelmed by several Trilopods in Godzilla: Rulers of Earth before Zilla finally rescues him. In the Atari and Pipeworks Godzilla games, Jet Jaguar becomes incredibly slow once he grows to his maximum size. Changing size also requires a great deal of energy in these games.


Video games

Godzilla: Trading Battle

In Godzilla: Trading Battle Jet Jaguar can release an "explosion breath" from his mouth.

Godzilla: Save the Earth

Jet Jaguar is a playable character in Godzilla: Save the Earth. In this game, Jet Jaguar can fire energy beams from his arms and spin himself around at extreme speeds, creating a deadly tornado. Jet Jaguar possesses numerous martial arts-inspired melee combat moves, and can change his size to grow much larger or smaller than his opponent. While in his smallest combat form, Jet Jaguar deploys a reflection shield over his body, making him immune to beam attacks, which are reflected back at the opponent.

Godzilla: Unleashed

Jet Jaguar in Godzilla: Unleashed

Height: 90 meters
Weight: 38,000 tons

"Jet Jaguar is a human-sized robot created by a Japanese scientist for unknown reasons. Created with a great potential for learning, Jet Jaguar achieved sentience and began to modify himself and his programming. His most impressive modification has been his ability to change his own size-allowing him to grow large enough to dwarf monsters such as Godzilla. Unfortunately, Jet Jaguar cannot maintain his enormous size indefinitely, and must periodically rest to regain his energies. Jet Jaguar is a reserve member of the Global Defense Force-heroically protecting humanity whenever it is threatened by monstrous threats."

Godzilla (PlayStation 3 / PlayStation 4)

Jet Jaguar in Godzilla

In the PS3 version, Jet Jaguar appears as a boss in Area 12 on Stage 5 if the G-Generators are not destroyed fast enough. He may also appear on other levels as a random boss. He attacks using melee attacks. He has a custom theme, and a cutscene of him shaking Godzilla's hand is played after he is defeated three times.

In the PS4 version, he can be encountered on 3 stages with special conditions. He can also only be encountered the first time as Godzilla. If the player destroys the area to between 50% and 65%, and then destroys the generator, Jet Jaguar will appear. He can appear in:

  • Stage 1 of Area 1
  • Stage 4 of Area 7
  • Stage 5 of Area 16

The destruction level applies for all areas.


  • Square
    • One tap: Right Chop
    • Two taps: Left Chop
    • Three taps: Headbutt
  • Triangle
    • Tap: Dropkick
    • Roar + Tap: Somersault
  • X
    • Tap: Dash
    • Backward + Tap: Backflip
    • Right/Left + Tap: Left Right Step
    • Tap + Triangle: Sliding
  • Circle
    • Tap: Flying Tackle
    • Roar + Tap: Moon Somersault
  • R2
    • Tap: Shrunken Flight

Kaiju Guide

Main article: Godzilla (2014 video game)/Kaiju Guide#Jet Jaguar.


Jet Jaguar on the cover of issue 7 of Godzilla: Rulers of Earth

Jet Jaguar appears in Godzilla: Rulers of Earth. Jet Jaguar appeared to help Godzilla to fight against Orga and Gigan. After flying into Orga's mouth and expanding in him, causing Orga to explode. When Godzilla inspected Jet Jaguar, he tried blasting Jet Jaguar with his atomic breath, but managed to make Godzilla to turn his attention on Gigan. While Godzilla was distracted, Jet Jaguar noticed that Orga was trying to regenerate his entire body and so he set out to stop the kaiju, but ultimately failed. After Godzilla defeated Gigan, he becomes enraged and attacked Jet Jaguar by firing his atomic breath at point blank range and smacked the robot with his tail, but was knocked out after Jet Jaguar punched Godzilla's face. Eventually, Jet Jaguar flew to the Cryog ship to help Steven Woods and Chavez, but not before throwing Godzilla out to sea.

In Godzilla: Rulers of Earth #12, Jet Jaguar fought Destoroyah, even shrinking to human size, then piloting Kiryu to fire the Absolute Zero Cannon, killing Destoroyah. He then attempted to stop the humans from setting off underwater explosives while Godzilla was in the area, but did not make it in time.

Jet Jaguar then disappeared for several years, but reemerged when the Trilopods attacked the Earth. Jet Jaguar traveled to Los Angeles to assist Godzilla in the battle against the creatures and fought against a Trilopod that had taken on Godzilla's characteristics, but was nearly destroyed by it. Thankfully, Jet Jaguar was saved by Zilla, and joined with Godzilla and his allies to defeat the Trilopods. At some point in the battle, Jet Jaguar managed to attack Gigan and defeat the cyborg monster. After Godzilla destroyed Magita, Jet Jaguar observed Godzilla and the other monsters traveling out to sea, following them from a distance. Jet Jaguar was last seen human-sized being repaired in Dr. Ando's office.


Main article: Jet Jaguar/Gallery.


Jet Jaguar's sounds



Wikizilla: YouTube Kaiju Profile: Jet Jaguar


  1. Episode 2 for Silver Jet Jaguar. Episodes 71, 73-74, 105, 111, 125, 127, 135-138, 147-148, 150-156, 159-160, 179, 214, and 216-217 for Medical Jet Jaguar. Episodes 87-88, 125, 177-178, 191, 194, and 197-198 for Fire Fighter Jet Jaguar.


This is a list of references for Jet Jaguar. 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. The Godzilla Chronicles Ver. 3. Chikushobo. December 1999. ISBN: 978-4812405819.
    Seasar, Titannosaurus, Jet-Jagger - The Godzilla Chronicles.jpg
  2. C65DbC4U4AAjxprj.jpg
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 All Toho Monsters Pictorial Book (4th Edition). Yosensha. pp. 176, 179, 181-182, 201, 207. 4 September 2016. ISBN: 978-4-8003-0362-2.
  4. Godzilla 1954-1999 Super Complete Works. Shogakukan. p. 153. 1 January 2000. ISBN: 978-4091014702.
  5. 5.0 5.1 5.2 5.3 5.4 Toho Special Effects All Monster Encyclopedia. Shogakukan. p. 67. 23 July 2014. ISBN: 4-096-82090-3.
  6. 6.0 6.1 6.2 6.3 Godzilla Completely Deciphered. Takarajimasha. p. 117. 26 June 2014. ISBN: 4800228964.
  7. 7.0 7.1 J.D. Lees, Marc Cerasini. The Official Godzilla Compendium. Random House. p. 129. 24 March 1998. ISBN: 0279888225.
  8. 8.0 8.1 8.2 8.3 Toho Special Effects Movie Complete Works. Village Books. p. 159. 28 September 2012. ISBN: 4-864-91013-8.
  9. 9.0 9.1 9.2 9.3 9.4 9.5 9.6 Tokyo Shock Godzilla vs. Megalon DVD / Blu-ray audio commentary
  10. 10.0 10.1 Godzilla Toho Champion Festival Perfection. ASCII MEDIA WORKS. pp. 89, 103, 109, 111. 29 November 2014. ISBN: 978-4-04-866999-3.
  11. 井口昭彦さんトークライブ レポート! - Cast
  12. 12.0 12.1 Toho SFX Movies Authentic Visual Book Vol. 6: Jet Jaguar. Dai Nippon Printing Co., Ltd.. 14 January 2018.
    Visual Book 19.jpg
  13. 13.0 13.1 13.2 The Pictorial Book of Godzilla 2. Hobby Japan Co., Ltd.. p. 134. 1 December 1995. ISBN: 978-4894251175.
  14. ジェットジャガー - Japanese Wikipedia
  15. Holland, Edward L. (2015). Chris Mowry Interview. Monster Attack Team.
  16. Toho Monster Graffiti: Godzilla vs. King Ghidorah Complete Commemoration. Kindaieigasha. p. 21. 31 October 1991. ISBN: 978-4764880566.
  17. Anime News Network: The X Button, April 22, 2015
  18. Ōki, Renji. GODZILLA: Monster Apocalypse. Kadokawa. p. 198. October 25, 2017. ISBN: 9784041061817.


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