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Giant Robo is one of the oldest franchises in Japanese comics. It first appeared as a manga by Mitsuteru Yokoyama that ran for nearly a year from 1967 and 1968. It was adapted into a live-action Toku series that same year, and the show gained a mild cult following when it was aired in the US as Johnny Sokko and His Flying Robot.
But history be damned, when somebody mentions Giant Robo today, they're not thinking of either of those... Okay, some people still think of Johnny Sokko and His Flying Robot, but usually only if they grew up in The '70s, watch over the air TV in the US or grew up in India and Brazil. Nowadays, they're thinking of Giant Robo The Animation: The Day The Earth Stood Still, one of the most completely insane works to come out of the anime industry in the 20th century.
An (unholy) amalgamation of Wuxia, Superheroes, Richard Wagner, Mecha Anime and pure insanity, Giant Robo: The Day The Earth Stood Still is notable for being an early and rather impressive example of the Massive Multiplayer Crossover, formed when director Yasuhiro Imagawa (Mobile Fighter G Gundam) was told that he couldn't use any of the supporting characters from the manga or TV versions of the Giant Robo story. Struck by inspiration, he instead decided to instead take characters from the rest of original creator Mitsuteru Yokoyama's work, including Babel II, Sally the Witch, Romance of the Three Kingdoms (1971), Kamen no Ninja Akakage and many others. To add to the effect he decided to draw them all in Yokoyama's classic 1960s style, along with a retro-futuristic world populated by Ninja, ancient Chinese warriors, Sharp Suited Businessmen and Badass Longcoats walking side by side.
Oh and don't pay any attention to the synopsis above, or let the art style and Kid Hero fool you into thinking this is a kids' series in the vein of G.I. Joe or M.A.S.K.. Giant Robo's plot starts off slow and deceptively cliché-ridden, with a blatant Mad Scientist and McGuffin driving the first half of the plot, and then we get the Wham Episode, rewriting the entire premise, beating the snot out of the good guys and resulting in several major characters getting Killed Off for Real. It's not the first, or even the most dramatic.
A new anime, GR: Giant Robo, premiered in 2007 to celebrate the 40th anniversary of the original manga; however, it was not related to the OVA series.
Imagawa also scripted a new Giant Robo manga, "The Day The Earth Burned" that started publication in 2006. While this version is also an Alternate Continuity, it does act as a Spiritual Successor to the OVAs, with the same tone and many of the same characters. The original manga has also recently become available on most major manga websites.
See also: Shin Mazinger, another Super Robot series by Yasuhiro Imagawa. Like Giant Robo, it is a revival of a classic series and involves heavy crossover from the original artist's entire body of work. Alternatively, the 2004 Tetsujin 28 anime, also directed by Imagawa based on another famous Yokoyama story with similar design aesthetics and a few bits of Retroactive Recognition (The depiction of Kenji Murasame and Robo's "Gao" noise reused for Tetsujin's roar, most notably).
A series that LOVES its tropes, twisting them and playing them straight with the same vigor, the Giant Robo OVA features examples of:
- Action Bomb: Silent Chuujo, apparently. As the Sphere floats towards the last Shizuma Drive bastion, there's Chuujo on a bluff. He loosens his tie and shirt, takes a few practice jabs, then flies up to punch the Sphere. That dialogue in episode 2 makes far more sense when you know this.
- Action Girl: Ginrei and Youshi are both government operatives.
- Adapted Out: GR-4, the land based Giant Robo from the 1992 manga, is completely absent from the OVA and from any subsequent media within the OVA universe.
- Age Lift: Daisaku is 12 years old in the OVA like his tokusatsu counterpart instead of being around teenage years in the original manga
- All There in the Manual: Since most of the Massive Multiplayer Crossover characters lack in-universe backstories fans have ended up taking inspiration from the stories they originated from.
- All Your Base Are Belong to Us: The last act of the first OVA episode.
- Anachronic Order: This was the original intent of the OVA, as The Day the Earth Stood Still was the second to last arc of a seven part story. The next arc was going to show how Daisaku joined the Experts of Justice.
- Anti-Villain: Hanzui the Evil Messiah, leader of the Magnificent Ten. Never actually does anything evil, proves extremely honorable and is a great deal nicer than most of the good guys.
- Anyone Can Die: Murasame repeatedly, a few others as well. Alberto the Shockwave... BWA HA HA HA HA HA - best twist ever.
- Apocalypse Wow: The scene where France is being destroyed.
- Arc Words: "Beautiful Night!", "Can happiness be achieved without sacrifice?"
- Badass in a Nice Suit: Most notably Alberto and the Commander.
- Badass Bystander: The IPO's various Red Shirts are all trained in gun use and are as capable of high-flying acrobatic leaps as the Experts of Justice themselves.
- Badass Fingersnap: The Fabulous Fitzgerald, who can cut anything in half by snapping his fingers at it.
- Badass Longcoat: Murasame. The twist? It's BRIGHT PINK!
- Badass Normal: Daisaku. Sure, he owns "the world's strongest robot," but he's still the only normal human in the cast. Everyone else can fly, transform, use super strength and other bizarre powers.
- Battle Couple: Youshi and Taisou are married pair of government agents.
- Big Guy: Tetsugyu and Youshi both fit this role. In a slight subversion Youshi is a woman, and certainly not a Cute Bruiser either.
- Big Damn Heroes: Giant Robo's introduction, and several other examples.
- Bilingual Bonus: Tetsugyu's name roughly translates to "Iron Ox", one of the nicknames of Li Kui in Yokoyama's manga adaptation of Water Margin.
- Bittersweet Ending
- Body Horror: Ginrei uses up her life power and her body disintegrates.
- Boisterous Bruiser: Tetsugyu, Taisou, Youshi.
- Broken Pedestal: Zigzags with Vogler to one of his assistants. It goes back-and-forth at least 5 times, finally resulting in subversion. Vogler really meant for the best for the world.
- The Brute: In the BF there's Jujoji who has some devastating magic powers. The Fabulous Fitzgerald loves to carve up people with his snapping fingers.
- The Call Has Bad Reception: Dr. Vogler had good intentions. Originally, his son had good intentions. The only problem was that by the time Dr. Vogler tells his son what needed to be done, he didn't have a very good vocabulary...
- The Cameo: Several Mecha from Mitsuteru Yokoyama's works make several apperances in the opening sequence such as GR-3, Black Ox, Monster and Gaia.
- Canon Immigrant: When Tetsujin #28 was remade in 2004, the Murasame Kenji that appears there isn't the original characterization - it's this one. He even calls himself "the immortal Murasame Kenji" just before going down in a hail of bullets and encouraging Shotaro... then getting up and wiping off the ketchup. Additionally, Tetsujin uses Robo's growl rather than its original sound.
- Cast of Expies: Pretty much every named character is either lifted from or based on characters from other works in Yokoyama's opus; there are derivatives from Babel II and its sequel works Sono na wa 101 and Ōkami no Seiza, Tetsujin 28-gō, God Mars, Sally the Witch, Kamen no Ninja Akakage, Iga no Kagemaru, and from Yokoyama's Suikoden and Sangokushi.
- Character Development: Numerous but Tetsugyu has a great moment in the fifth OVA.
- The Chessmaster: Big Fire's head strategist Koumei repeatedly insists the events of the plot are all according to plan. At no point are his strategy or tactics explained, and Koumei repeatedly gives several indications of treachery, but he insists nonetheless.
- Clothing Damage: Ginrei gets blasted in episode four and this is the result.
- Combat Stilettos: Ginrei wears these.
- Cool Big Sis: Youshi, Ginrei acts like one towards Daisaku.
- Cool Old Guy: One of Big Fire's Magnificent Ten is actually called Old Man Kawarazaki. His fellow Magnificent Ten colleague Shockwave Alberto also has a lot of the traits, exchanging taunts with the early twenties Big Bad over their respective ages.
- Cult Soundtrack: The pompous Wagnerian soundtrack by Masamichi Amano is consistently mentioned in reviews as a major appeal of the OVA.
- Dead All Along: It ultimately turns out that Dr. Vogler really did die at Bashtarle. His supposed “resurrection” was actually his son Genya disguising himself using a hologram.
- Death Is Cheap: It is very cheap for Murasame Kenji, since he just revives despite several violent deaths, and since he can apparently do so in an area he couldn't get to corporeally, it's part of his strategy. He even shoots himself in the head to drive home the point, noting that he "can't die."
- Deathly Dies Irae: As appropriate for a story about a Doomsday Device and a tale of revenge against humanity, Dies Irae appears multiple times in the score, both in instrumental and Ominous Latin Chanting forms.
- Demoted to Extra: GR-3 only shows up as a cameo in the Evolving Credits.
- Disney Death: Tetsugyu is apparently crushed to death by Genya's robot Gallop in episode five, and then, after going completely forgotten until episode seven, appears at the IPO base after Ginrei teleports it to St. Abbe wrapped in bandages.
- Eldritch Abomination: The Giant Sphere is an artificial example; it is a giant floating eyeball that, once it lifts its external layer of metal, reveals hundreds of other eyeballs.
- Empire with a Dark Secret:
- In Giant Robo: The Day The Earth Stood Still, the Shizuma Drive, which provides clean, cheap energy, is completely recyclable and looks cool too was built upon a foundation of the deaths of billions at the Tragedy of Bashtarle. A little Locked Out of the Loop as well, seeing as Daisaku's the only character (except maybe Sunny) who doesn't know — it's just that we only find out when he does.
- St. Abbe is the largest Shizuma Drive power plant in the world, and supposedly capable of providing half the world's energy by itself. It is also built directly atop the ruins of Bashtarle, which was destroyed by experiments with the prototype Shizuma Drive. The Big Bad targets it for destruction with his Doomsday Device during the finale.
- Enemy Mine: Shockwave Alberto in the Finale, as he considers the IPO a Worthy Opponent and the Big Bad an annoying, grandstanding brat trying to steal Big Fire's thunder.
- Enigmatic Minion: Ko-Enshaku is an especially unsettling one.
- Evil Counterpart: It seems that was going to be the case between Daisuke and Big Fire. One in charge of a giant robot, the other having three amazing guardians. Both very young. Though we don't know just how evil Big Fire really was.
- Evolving Credits: "Earth, the terrifying world of our future! This is the Shizuma Drive, now broken and useless, the great energy revolution undone in just ten days!"
- The Dragon: Ko-Enshaku serves as an all purpose Dragon for Genya and Cho-Katsu Komei, neither of whom like to get their hands dirty if they can help it. Ivan to Alberto.
- Eviler than Thou: Genya screws over apparent Big Bad Shockwave Alberto early on, and towards the end Cho-Katsu Komei does it to the rest of the Magnificent Ten.
- Evil Genius: Most obviously Vogler or so it seems. Old Man Kawarazaki seems to be an inventor. Zangetsu, if epileptic tress turned out to be true.
- Expy: Most characters of the OVA (who aren't from the original manga or anime) are Expys of Yokoyama's other works, such as:
- Taiso (Dai Zong), Tetsugyu ("Iron Ox"/Li Kui), Youshi (Yang Zhi), Kosonsho Issei (Gongsun Shen), Koushin (Huang Xin), Kaei (Hua Rong), Kaihou and Kaichin (Xie Bao and Xie Zhen), Shutsu (Zhou Tong), the Fishermen Brothers (Ruan Xiaoer, Xiaowu, Xiaoqi), Hanzui (Fan Rui), Richu (Li Zhong), Goyo (Wu Yong), Zangetsu (Han Tao) and Ko-Enshaku (Huyan Zhuo) all hail from Suikoden (Water Margin).
- Cho-Katsu Komei (Zhuge Liang) and Jujojii (Zhang Rang) are from Yokoyama Mitsuteru Sangokushi ("Records/Romance of the Three Kingdoms").
- Big Fire (Babel II/Koichi Yamano), Achilles (Lodem), Garuda (Ropross), and Neptune (Poseidon) were originally created for Babel II. Also, Chujo the Silent, Cervantes, Fitzgerald and even Daisaku's father, Dr. Kusama, were modeled after various characters in the series.
- Chujo also doubling as Azuma from the Giant Robo manga, having a near identical design to that of Daisaku's middle aged mentor.
- Likewise, Alberto the Impact, Ivan and Kawarazaki first appeared in Mars.
- Sunny the Magician is the original name of Sally the Witch.
- Red Mask was originally from Kamen no Ninja Akakage, and he is the main protagonist in that series.
- Kenji Murasame is a Canon Immigrant from Tetsujin-28, and Dr. Vogler, Dr. Montalblan and Q Boss hail from there as well.
- Ginrei is from Sononawa 101 (a sequel to Babel II) and Okami no Seiza.
- Genya and Yuuki were both originally from Iga no Kagemaru.
- Eyes Always Shut: Professor Go. And Doki about half the time. The other half has one eye open.
- Falling into the Cockpit: Daisaku was forced to take command of Giant Robo when his father and Murasame were mortally wounded trying to escape (and Murasame wouldn't heal in time.)
- Fan Fiction: A popular review and synopsis of the nonexistent Grand Finale fooled a lot of people. In its defense it would have indeed made a kickass episode.
- Five-Man Band: The five members assembled at the BF HQ and eventually oppose Genya and Komei.
- The Big Bad: Hanzui who seems to be in charge unless Komei is given instructions from BF himself.
- The Dragon: Zangetsu.
- The Evil Genius: Old Man Kawarazaki
- The Brute: Jujoji
- The Dark Chick: Yuuki.
- Gender Flip: Youshi is a female expy of Yang Zhi from the Water Margin and Yokoyama's Manga.
- Genre Throw Back: Daisaku's flashback on his origin plays a lot more like a typical giant robot show.
- Murasame: 'Daisaku! Use Robo's bazooka launcher!'
- Good All Along: Vogler.
- Greater-Scope Villain: Big Fire himself, the leader and namesake of the BF Group, is only briefly seen and never takes part in the action, with Alberto and Genya instead serving as the active threats.
- Happily Married: Taiso and Youshi.
- Haunted Technology: Giant Robo appears to contain Professor Kusama's spirit/will, as hinted at throughout the series and seen in the last episode.
- Hidden Depths: Many characters like Daisaku, Tesugyu, Ginrei, and others. Really the entire OVA series itself as it first looks like a typical giant robot series.
- Housewife: One can be seen during the opening narration.
- Humongous Mecha: In the main OVA, Robo and the Big Fire robots are of the more old-school, "vaguely sentient yet highly suggestible and obedient" variety, while the Ginrei Robo and neo Tetsujin-28 are more modern, directly piloted versions.
- I Cannot Self-Terminate: Murasame Kenji.
- Implacable Man: The silent, armored Ko-Enshaku fills this role for the bad guys, enigmatically surviving everything thrown at him before turning up unharmed the next episode. The good guys on the other hand have Murasame, whose tendency to survive getting gaping holes blown through him becomes almost comical as the series goes on.
- Informed Ability: Tetsugyu is remarkably ineffectual in battle, despite frequent reference to his strength. We see him take down a swarm of Big Fire Mooks just fine, but that's about it. To be fair it's more like the world around him is overpowered rather than him being weak.
- In Name Only: The OVA has next to nothing to do with Giant Robo or it's title character, rather it functions as an MCU-esque crossover for all of Mitsuteru Yokoyama's characters to interact in.
- Interpol Special Agent: The "Experts of Justice" are a part of Interpol.
- Irony: The Big Bad's plot to destroy the world technically succeeded, but wound up saving the world. Von Volger had tried to eliminate the new energy source because it was producing an undetectable poison gas that would wipe out all life on the planet after a certain point in time. The Eye of Volger was temporarily shutting down all of the energy cores in order to fix the poison gas problem.
- I Want Them Alive!: Happens in the last episode to Daisaku. He manages to get away and make it to Robo though.
- Karma Houdini: Cho-Katsu Komei gets away with everything, despite arrogantly declaring himself The Chessmaster and having none of the sympathetic motives of his fellow Big Bad. As a result he generally has a very poor survival rate in fan continuations.
- Kick the Dog: Murasame skips between this and
Moment of Awesome so quickly his teeth must rattle.
- Kid Hero: Daisaku Kusama is only twelve at the start of the anime.
- Killed Off for Real: Played straight and averted, especially later on when everyone was expecting Anyone Can Die. The anime still manages an impressive body count though, even with the odd couple of extremely unlikely Not Quite Dead.
- Kinetic Weapons Are Just Better: Cervantes points a gun at Daisaku, despite the fact he can generate enough heat from his hands to melt a thick steel door.
- Kubrick Stare: Part of Giant Robo's design.
- Line in the Sand — Subverted. Our hero (recovering from a Heroic BSoD) never crosses the line, but the battle crosses it from the other direction. And the "line" is a crevice deeper than he is tall.
- Luke, I Am Your Father: Ginrei is revealed to be Von Vogler's daughter, and Genya's sister.
- The Kid with the Remote Control: Subverted, slightly. Robo has its own will apparently that of Dr. Kusama and usually only follows the general gist of the commands.
- Example from the last episode, at the Monster Sphere: "Shoot, Robo!" *Robo fires everything it has, plus one of its booster rockets*
- Mad Scientist: Dr Von Vogler who eventually turns out to be a kindhearted and inspirational man who for PR reasons was blamed for the disaster one of the other scientists caused. After all, as far as anyone knew, he had died in said disaster and couldn't say any different!
- Man of Wealth and Taste: Genya is nearly always dressed in a clean white suit and his home is a sumptuous mansion.
- Mooks: Made an art form. The basic IPO mooks at one point spontaneously form a human pyramid in order to block an energy blast.
- Mook Maker: To a degree, Doki, who commands a whole army of warriors instead of general BF mooks.
- More Dakka: Giant Robo carries enough firepower to wipe a couple of cities off the map.
- Motherhood Is Superior: Averted. Fatherhood drives a lot of the characters. The end credits even dedicate the film to fathers and sons.
- Ms. Fanservice: Ginrei undoubtedly shows the most skin out of anyone.
- My God, What Have I Done?: Genya, when he realizes that he horribly misunderstood his father's last wish and even killed his sister as a result.
- Mythology Gag: Despite only loosely taking inspiration from the 1967 Giant Robo tokusatsu, there's a remarkable amount of visual and even some plot similarities:
- Giant Robo's Papa Wolf instincts in protecting Daisaku when he is in peril, much like how Robo was in the later episodes of the toku.
- The Eye of Volger being a robotic fusion between the Giant Robo kaiju, Ganmons and Glober.
- Robo's design being a muscular version of the tokusatsu design, rather than being based on the manga version like nearly every other Yokoyama character present
- Daisaku being 12 years old rather than being 18 years old like in the manga.
- In the Evolving Credits, GR-3's rocket missile decoration are based off of Giant Robo's finger missiles in the toku version, also doubling as an homage to Gunbuster.
- The manga only GR-4 being an homage to Calamity, the Evil Knockoff of Giant Robo from the toku.
- The symbol on GR's forehead being the shape of a Unicorn, which is also the name of the IPO equivalent in the toku version.
- Robo being a much slower, lumbering mech being similar to the weightier version of GR seen in the toku.
- New Era Speech: Dr. Von Vogler's speech during the first flashback to the Tragedy of Bashtarle (the one repeated as the Cold Open of the second episode):Dr. Fogler: The future has shone upon us with its glorious brilliance! The time to seize our destiny and conquer all our fears is now! In ancient times, man rubbed sticks together to create fire. Then he slaughtered the whale and battled one another for oil. After that came the atomic age. In every chapter of our history, we danced with danger. But now it will be different. For the first time in our existence, we will be delivered from fear!! Finally, we will escape the prison of our delusions, and the Beautiful Night will embrace us all!
- Nice Job Breaking It, Hero: Averted! Just barely, though. In the final episode you find out that the Shizuma drives were actually creating a poisonous gas that would have destroyed all life on earth within days of the events that make up the series. The anti-drive was actually created in order to eliminate this threat before it destroyed all known life. All of the "normal" drives would have reactivated once all of the anti-drives had been activated at once, modified to correct the flaw. At the last minute, despite the heroes' efforts all of the anti-drives were activated, thus saving the world.
- Nice Job Fixing It, Villain: It turns out that when the three anti-drives are together they fixed the 2% problem or else they all would have exploded.
- Ninja: "Mask the Red" of Big Fire's Magnificent Ten. Word Of God says that there is an entire ninja community in the world of GR who takes interests in the fights Mask the Red has with his Celestial 9 counterpart, Kagemaru.
- No Indoor Voice: Everyone, especially as everything goes to hell. The dialogue of the final episode consists of nothing but EPIC SPEECH!
- "Not So Different" Remark: Daisaku and Genya.
- And Daisaku and Tetsugyu. The latter saw Daisaku's expression when he damaged Robo's arm. The same feeling of pain as when Tesugyu slew his own father.
- Oh, Crap!: Genya when Alberto absorbs the heat energy from the sphere leaving it completely vulnerable to attack from Giant Robo. The look on his face as Robo prepares to launch one of its rocket boosters as a missile is particularly priceless.
- Omake/Filler: The three Ginrei Special OVAs, ranging from a reasonably well-executed prequel Side Story to pure animated Crack Fic, were created to maintain interest and raise funds during the main OVA's production delays.
- Clip Show: Most of the first Ginrei OVA.
- Crossdresser: Somehow, "Ginrei the Mighty" comes up with an excuse to have all the Experts wearing Ginrei's trademark Chinese mini-dress. Also, the first Ginrei OVA has Murasamecompletely disguised as Ginrei for most of the episode.
- Evil Twin : Named "Electric Shock Rosa" by Alberto
- Fembot: The "Ginrei Robo".
- Go-Karting with Bowser: The Experts and the BF organization drinking together in "Ginrei the Mighty".
- Mood Whiplash: The third episode is completely serious
- Refuge in Audacity: Ok, so the main series is this, but the omakes take this to another level. We have things like Giant Robo nosebleeding gasoline at the sight of Ginrei naked, everyone dressing in Ginrei dresses, the below mentioned Victoria's Secret Compartment moment, Daisaku claiming to be 29 years old and divorced...
- Shout-Out: Ginrei Robo is a parody of Venus A from Great Mazinger, and Daisaku also gets to pilot an ersatz Tetsujin 28-go, revamped in the same way Giant Robo itself was in the OVA series.
- Daisaku even wears Shotaro's signature plaid jacket rather than his own drab grey while piloting the redesigned Tetsujin 28.
- Victoria's Secret Compartment: Ginrei pulls a full-sized bazooka from her cleavage in "Iron-armed Ginrei / Ginrei the Mighty".
- Wholesome Crossdresser: ALL OF THE (male members of the) IPO in Episode 2.
And it is hilarious.
- Once More, with Clarity!: The story behind the Tragedy of Bashtarle changes multiple times over the course of the OVA.
- Overclocking Attack: this is what the Monster Sphere actually does to the Shizuma drives. Except the resulting energy can be harnessed...
- Papa Wolf: Giant Robo has a Auto-Guard Circuit allowing it to activate and act of its own will when its controller's life (sensed through the wristwatch) is in danger. Robo breaks out of its maintenance dock and takes off for Daisaku (who doesn't seem to be aware of it) the first time, where it's noted that Robo was running at 50 times its usual power.
- Subverted slightly, when Robo crashes into an unbreakable barrier - it can't control its output while in full-on Papa Wolf mode, and runs the risk of melting down if allowed to continue for too long.
- Pet the Dog: The scene in the 5th OVA where Genya comforts a delirious Daisaku and then learning about his motivation for revenge. Also Ivan mentioning how his home was destroyed from the Bashtarle disaster.
- The Plan: Cho-Katsu Komei claims several times that he is pulling one of these off, though it is left ambiguous whether this is actually true.
- Plot Hole: How, exactly, was the Vogler Sphere created, and by whom? If Vogler created the sphere, as his final recording indicates, how did he get the resources and the time required to do so, and did he really do it by himself as the story indicates? If Genya made it, how did he not know about his father's recording that was preprogrammed into the sphere, and thus, his father's intentions?
- Poor Communication Kills:
- Interpol's decision to seal Giant Robo away immediately after the revelation of its nuclear power source, and especially Chuujo's ham-handed delivery of those orders serves no purpose except to frustrate and isolate Daisaku.
- The Big Fire Organization has a major internal communications problem, in which the only person who appears to know what's going on is the head strategist, who refuses to elucidate in the slightest and repeatedly appeals to the authority of Big Fire himself when questioned by the Big Ten, even as hundreds of Big Fire agents die as casualties of the Vogler Sphere.
- Probably one of the most brutal literal examples in any anime, If Franken Von Volger had come up with an easier way to communicate his plan with his son Genya before he passed away, rather than the overcomplicated means to reveal it with a rigged briefcase, Genya wouldn't have gone insane and many lives would have not been wasted for his war.
- Power at a Price: The children of Professor von Vogler are able to teleport, but the more of that power they use, the more their body fades away.
- Putting on the Reich: The "Big Fire" villainous organization wants to conquer the world using superweapons and has even copied the Hitler salute (the straight-arm salute with the right hand and transforming "Heil Hitler" into "Hail, Big Fire! Allegiance or death!").
- Real Men Wear Pink: Murasame's overcoat and Hanzui's cape. Are you dumb enough to mock them?
- Refuge in Audacity
- Ret-Canon: The original Animaze dub of the OVA (for L.A. Hero and later Manga Entertainment) was influential on the subsequent dub that Media Blasters commissioned from NYAV Post, and on the fan perception of the series in general.
- First and foremost, the Animaze dub gave Kenji Murasame a Gratuitous French
accent in the first episode, because he first appeared investigating the murders of Shizuma's partners in Paris, and presumably the writers didn't know that he would be a recurring character. Over the years that the original series took to complete, Animaze stuck with their decision — and NYAV Post followed suit in their new dub.
- The NYAV Post dub also included nods to other memorable lines from the older version, such as including "Allegiance or death!" in the Big Fire organization's Battle Cry.
- First and foremost, the Animaze dub gave Kenji Murasame a Gratuitous French
- Retcon: In episode three, Tetsugyu enables Daisaku and Giant Robo to take to the battlefield against orders. Episode five revises his intentions to claim he was deliberately setting up Daisaku to fail, which flies in the face of the shock and dismay he showed in episode three when Giant Robo actually lost the fight.
- Perhaps his shock came from realizing he effectively 'murdered' Daisaku's father figure just like how he accidently killed own father?
- Roof Hopping: You know an organization is bad ass when all of its support staff / engineering mooks can roof hop onto a zeppelin to clear off before an attack. No really, Daisaku is the only normal human in the show.
- Rule of Cool: How else do you explain a mecha anime with supernatural kung-fu fighters and a Wagnerian soundtrack?
- Samus Is a Girl: Ginrei's introduction as the Badass Longcoat "Iron Mask" during the prologue of the first episode.
- Sequel Hook: *Cries*
- "Shaggy Dog" Story: What it kind of boils down too when the three anti-drives are together at long last. A shame that the IPO were so good at their job. Even sadder that if Genya hadn't shot Ginrei then humanity would have been wiped out.
- Shout-Out:
- The subtitle of the OVA series is a shout out to the classic film The Day the Earth Stood Still (1951).
- Ginrei first appears disguised as K from Robot Detective.
- Spiritual Crossover: Of Yokoyama's many works. See Cast of Expies and Expy for details.
- Super Robot/Real Robot: The robots straddle the line. They are considered powerful enough that, even with World of Badass in play, no one wants to fight Robo one-on-one without a heavily stacked deck; on the other hand the organizational and maintenance issues they'd require is fleshed out and clearly just this side of 'impractical'. They're superweapons, and unless they're specifically built to take a hit the hand-to-hand fights don't last very long - take the complex snake-train robot being paralyzed after one hit in the first episode, for example.
- Terminally Dependent Society: All the world depends on the Shizuma Drive. When it is destroyed, everything else is. The only oil refinery left is at Shanghai, and then it's destroyed too; there's some solar and wind power left, but not much. The world ends in ten days.
- This Cannot Be!/Big "NO!": See here
- Unexplained Recovery: Numerous characters. On the villainous side Alberto. Jujoji and Zangetsu sure acted dead in the sixth OVA but are fine in the seventh.
- Vasquez Always Dies: Youshi.
- Victoria's Secret Compartment: Currently providing the page image.
- Villainous Breakdown: Genya, several times during the final episode. While he normally finds a way to salvage the situation the last one truly breaks him, and not without reason.
- Villainous Rescue: Alberto the Shockwave.
- Wham Episode: Episode Five, which elaborates on Testugyu's backstory, reveals the true villain of the Tragedy of Bashtarle, gives more context to Vogler's revenge, and crushes Tetsugyu beneath Genya's robot Gallop.
- What Happened to the Mouse?: Episode six and the first part of episode seven completely forget about Tetsugyu, which means he goes ignored during several very relevant conversations. It turns out he's alive after his Disney Death, but this opens Plot Holes about how he went from being crushed and abandoned in the mountains to appearing at the IPO base after Ginrei moved it to St. Abbe.
- World of Ham: This series' universe seems to work purely ON HAM!!!
- Worthy Opponent: Big Fire considers the IPO to be one of these, and at least a few of the good guys feel the same. Also Alberto the Shockwave's entire reason for faking his own death.
- Wrecked Weapon: Daisaku orders an extremely unwise attack on the Eye of Volger during the Wham Episode, resulting in Giant Robo getting itself seriously damaged. Cue an Oh, Crap! reaction from just about every single good guy on the field.
- "X" Marks the Hero: Tetsugyu
And much like its Spiritual Successor, the Giant Robo Toku adored its many tropes, inventing several examples of now classic Mecha and Tokusatsu tropes. The Giant Robo Toku includes examples of...
- Achilles in His Tent: Hunter, the former U9 agent of Unicorn is a subverted example of this. He abandons Unicorn after Azuma inadvertently killed his best friend during a training exercise and lived a life of a vagabond in the mountains stalking Gargoyle agents on his own. He only begrudgingly helps Johnny and Jerry once Gargoyle tries to deploy a missile launcher from the mountain and although he helped save the day and on good terms with Azuma again, he still doesn't rejoin Unicorn.
- Adaptational Backstory Change: Big Fire, the human terrorist group that built Giant Robo and his successors, is now an intergalactic syndicate with a mixture of human and alien agents as well as relying far more on kaiju than robot machines.
- Adapted Out: GR-3, a flying robot capable of high-speed aerodynamics, never made an appearance in the series. note
- Ambiguously Human: Dr. Snake, the Gargoyle scientist who built GR-2. His design has a strange, goblin-like ear and nose with burns and a mechanical visor.
- An Ice Creature: Icelar (Referred to as Igganog in the dub). A large dinosaur-esque monster that can blow icy winds from the tendrils on the side of its head capable of freezing humans and even Giant Robot solid. It gets upgraded to an icy Breath Weapon in his second appearance.
- Animated Armor: Goldenaut (Mr. Gold in the Japanese version). One of Gargoyle's generals who is a living suit of golden knight's armor that is immune to gunfire.
- Artistic License – Gun Safety: In episode 12, Mari gets the attention of Johnny and Jerry at Unicorn's shooting range by firing her sidearm over their heads at the target from the staircase behind them.
- Artistic License – Nuclear Physics: There are plenty of times in the show where characters get exposed to some form of nuclear energy and suffer no ill side effects. Most notably in the first episode, where Johnny and Jerry escape the Gargoyle's Island base as a nuclear bomb detonates to activate the title character. Johnny and Jerry stand within several feet of the blast and even look up at the fireball and aren't even physically mutilated from the heat and force of the blast. Giant Robo can also just sap nuclear energy like a sponge which, while explaining why Johnny and the others haven't died of radiation poisoning, still is hard to believe along with a robot being able to just suck out any form of nuclear energy and not suffer the effects from Electro Magnetic Pulse.
- Back from the Dead: Several monsters that were defeated early on usually reappear once in the show, relabeled with a "II" suffix-even for GR-2, while Icelar who appeared 3 times in the show is eventually given the "Icelar III" in the finale.note
- Badass Normal: Johnny Sokko is a 12 year old boy who controls a Humongous Mecha, welds a pistol, has a jetpack and serves in an elite Spy Agency. He also goes to school and has classmate friends he spends his downtime with and generally lives a regular civilian life. The same could be said for each of the other UNICORN agents as well though this aspect was only inferred.
- Bragging Theme Tune
- Beard of Evil: Lieutenant Piranha, one of Gargoyle/Big Fire's recurring henchmen, has a goatee. Earlier episodes have it as a full beard note , but it becomes a goatee in Episode 7.
- Big Bad: Emperor Guillotine
- Big Good: Commander Azuma
- Bittersweet Ending: One that traumatized a number of childhoods in the 60s and 70s, both in America and Japan. Giant Robo defeats Guillotine, but his body is "a mass of atomic energy" that would destroy the Earth when he dies. To prevent this, Giant Robot grapples the Emperor and flies him into space to explode against an asteroid much to Johnny's and the other heroes horror.
- Botanical Abomination: The Satan Rose (Gargoyle Vine) is a lava spewing, space plant that can grow large enough to destroy the Earth with its gigantic growing tendrils. Giant Robo has a very tough time defeating it on the two battles they had, getting ensnared in its crushing vines.
- Calling Your Attacks: The Ur-Example in the Mecha Genre. Daisaku/Johnny would call GR-1's attacks via shouting it in the watch.
- Child Soldier: Bizarrely enough, the good guys have two child soldiers on their team, Johnny and Mari, seemingly without any qualms over the morality of putting fully armed children in front line combat against aliens and monsters. The Gargoyles have Agent X7 who is their answer to Johnny and controls the Iron Klaw monster (Gangar II in the original).
- Cold War: The show is set in "The Latter Half of the 20th Century" where the various Cold War superpowers are presumably in power. Guillotine at one point attacks two nations that are Expies for America and The Soviet Union in order for the two nations to start a nuclear war, while another America Expy tries to build their own clone of Giant Robot which causes the UNICORN Organization to worry that other nations might start a robotic arms race and potentially lead to a global Robot War. Given that the show was produced in the 60's when the Cold War tensions were still very much high, it's not surprising in the least that the show would dabble with the geopolitics of the era.
- Compilation Movie: Several episodes of the American import were edited together into the movie "Voyage Into Space".
- Cool Shades:
- Part of the Gargoyle Gang's uniform.
- A handful of Unicorn agents also wear these (Llyod from UNICORN's Canada Branch being one of them)
- Dub Name Change: Every single character except for Commander Azuma, Mitsuko, Mari, Guillotine, Dr. Snake, and Spider got one in the English dub. Famously, Daisaku Kusama was changed to "Johnny Sokko" and Big Fire was changed to "Gargoyle Gang".
- Eagle Land: The Republic of Melcon in episode 22 is of the type 3 variety. They don't intend to harm the world with the Giant Robo clone Cleopat and simply want to compete with Japan. However it is stated in universe that such a desicion could start an more destructive arms race with the possibility of each nation wanting their own national supercharged robot.
- Early-Installment Weirdness: Since the show was filmed out of episode order, episodes later in the shows run that were filmed much earlier in production order have plenty of weird moments including Piranha's facial hair changing from a goatee to a beard between episodes and the character design of Red Cobra being completely different in Episode 17 due to the episode being the 5th episode in production order.
- Evil Knockoff:
- Subverted with the aforementioned Cleopat. It was originally built as a military robot with Giant Robo's blueprints that was meant to fight for justice but gets stolen by the Gargoyle's to fight and nearly defeat Robo.
- Played straight with the Android U7 in Episode 23. Doctor Engali tricks Johnny into building an exact replica of himself that steals the watch controlling Giant Robo and sends it on a rampage through Tokyo.
- Eyepatch of Power: Harlequin(Black Diamond in the Japanese version). It ends up being how Unicorn identifies him as a double agent in his debut episode.
- False Friend:
- Kenny/X7 pretends to befriend Daisaku in order to kill him. This conflict ends with a battle between Giant Robo and X7's personalized Gangar.
- Metron (Known as Metro-3 in the Japanese version) is a space policeman who arrives on Earth with the intent of catching Guillotine. He turns out to be actually an agent working for Guillotine. Whether he was a cop that Guillotine bribed into serving him or if he ever was a cop in the first place is uncertain.
- Falsely Reformed Villain: The crux behind Harlequin's plan in his debut episode.
- Fantastic Racism: The alien Gargoyles occasionally note how their kind would do things the weaker willed humans wouldn't do since Gargoylians are inherently evil by birth.
- Faux Affably Evil: Any villain that isn't a Large Ham is most likely this. Spider and Dr. Botanus are the best examples.
- Finger Firearm:
- Giant Robo's signature attack.
- And in the finale Emperor Guillotine is shown to use one of his fingernail's as a nuclear bomb.
- Johnny Sokko's Flying Robot's Hands Saves Lives: Happens many times throughout the series.
- Heroic Sacrifice: Giant Robo does this in the Grand Finale
- Hoist by His Own Petard: Several examples of this happen throughout the show:
- The Android U7 built by Dr. Eingali is destroyed using a counter serum made from the same magic glue that was used to built it.
- Two of Gargoyle's General's were inadvertently killed by the same monsters they used. (Spider killed by Scalion's acid spray and Professor Hydra being frozen to death by Igganog's Ice Breath)
- In the final episode, Emperor Guillotine was ultimately defeated by the very same robot that his organization created.
- Hollywood Acid:
- Ikageras (Scalion in the English dub) can spew a stream of this from its mouth. Its strong enough to melt Giant Robo's arm and Commander Spider
- The Hydrazona bacteria is an acidic Blob Monster that can melt entire bridges, a nuclear tanker, several Unicorn Red Shirts and even a tin decoy of Giant Robo.
- Humongous Mecha: Notably the first Toku mecha show.
- I'm Melting!: Spider's death via acid spray in Episode 7
- In Name Only: The series has next to no resemblance to its then concurrent manga counterpart having kaiju and alien invasion plots akin to Ultraseven than the James Bond esque spy drama of the manga. note
- Intergenerational Friendship: Daisaku Kusama (12) and his fellow Unicorn agent Juro Minami (Jerry Mano in the English dub) (20's).
- Kaiju: The most common of Gargoyle's weapons.
- Large Ham:
- A vast majority of the villains. Most notably Emperor Guillotine, Fangar, Dr. Snake, and The Space Mummy.
- Some of the good guys do this as well, the most prone to this are Commander Azuma and Dr. Dorian.
- Last Villain Stand: In the finale Emperor Guillotine is forced to fight Giant Robo on his own. He doesn't succeed.
- Luckily, My Shield Will Protect Me: Averted for Drakulon. He had a large shield to protect him but it's useless to save him from meeting his end from Robo's flaming crucifix weapon.
- Made of Indestructium: Subverted. While Giant Robo is nearly invincible with his armor and weapons, monsters with acidic powers like Scalion and Hydrazona are shown to easily damage (and potentially destroy) Giant Robo.
- Make My Monster Grow: Quite possibly the Ur-Example for the tokusatsu genre, several kaiju in the show including Drakulon and the Big Bad himself were able to change their size from human size monsters to giant size beasts to fight off Giant Robo.
- Master of Disguise: Spider and Harlequin.
- Monster of the Week
- Names to Run Away from Really Fast: Almost all of the villains in the show have these. Some of the more villainous names include Captain Spider, Lt. Pirahna, Emperor Guillotine, Professor Hydra and Fangar.
- Oculothorax: Ganmons/Opticorn is a rather famous example of this trope.
- Off with His Head!: Or rather, in the case of GR-2 II, can have his head come on and off. GR-1 still tears off the head of him when he defeated him though.
- Our Monsters Are Weird: And how. Giant rolling balls that shoot out rockets from its retractible tips, Giant eyeballs with legs, Robot hands, Robot Jawbones, And that's only a few of the weird monsters Big Fire uses...
- Our Vampires Are Different: Drakulon and his female assistant are Space Vampire Knights who drain the blood of their victims to make them their mindless servants. Oh and he can turn into a gigantic form to fight the title character.
- Papa Wolf: As the series progresses, Giant Robo becomes more self aware and protective of Daisaku. In episode 21, when Daisaku is captured and his watch is taken from him, Robo activates himself just to save his master. In Episode 23 he realizes at the very end he was deceived by the Android Daisaku and dispatches it and Dr. Germa. This loyalty culminates in his Heroic Sacrifice during the series finale where he takes Guillotine down with him...
- Putting on the Reich: The Gargoyle Gang uniform is very clearly influenced by Wehrmacht uniforms. Their human commander Spider wears an officer's hat that resembles an SS officer's hat. note
- Pyrrhic Victory: In the final episode, Daisaku and the UNICORN agents managed to defeat Big Fire once and for all. But at the cost of Giant Robo.
- Reality Warper: Dr. Eingali (Dr. Germa in the Japanese version), a strange green alien from the "4th Dimension of Evil". He manages to create an android duplicate of Johnny that takes control of Giant Robo for a short time.
- Redemption Equals Death: Poor Agent X7...
- Reluctant Mad Scientist:
- Dr. Lucius Guardian, a scientist who was kidnapped by Big Fire and was forced to help build Giant Robo for destructive purposes. Fortunately, He rebelled and gave the wrist watch controller to Daisaku so that Giant Robo won't be used for evil.
- Dr. Dorian, the only human being who knows how to grow the planet destroying Gargoyle Vine, kept the knowledge a secret to prevent it from being summoned until the Gargoyle Gang brainwashes him to produce one to wipe out Tokyo. Once the brainwashing loses effect he revolts against the Gargoyles until he is knocked unconscious by them.
- Robeast:
- Ligon (Known as Ligon-Tyrox and Lagorian in the English dub). In its debut episode it is a machine that is built to resemble a giant monster. Its second appearance in Episode 10 depicts it as a regular organic kaiju however.
- Dorogon (Known as Dragon and Starker in the English dub) in its second appearance is depicted as an artificial monster that can grow or shrink in size with a special control device.
- Rocket Punch: GR-2 used it against Giant Robo in Episode 16.
- Rubber-Forehead Aliens:
- Dr. Botanus (Dr. Over in the Japanese version), a recurring villain introduced in episode three, is a portrayed as an actor coated in silver paint with a prosthetic brow on his head. He also has the same clawed hands as Emperor Guillotine.
- Fangar (Red Cobra in the Japanese version) features a more traditional giant prosthetic rubber forehead.
- Sacrificial Lamb: In the first episode, Dr. Lucius Guardian gave his life in order to let Daisaku and Juro escape. Shortly before Dr. Guardian was gunned down, he sets off a bomb in order to destroy a part of Big Fire's base.
- Shout-Out:
- In the Japanese version, The Unicorn Agents password code is "Napoleon's Trump Card is....King of Diamonds.
- Episode 4 has a brief reference to Nightmare From 20,000 Feet where Johnny waves at Jerry out of the window on the Unicorn spy jet, much to his horror.
- Suddenly Shouting: Fangar has a habit of doing this.
- Transformation Is a Free Action: Played painfully straight — before he performs any attack, Giant Robo has to first go through a variety of stances, yet remains unmolested by the Monster of the Week. This is most evident during Robo's missile attack, which features Stock Footage of him swinging his forearms side-to-side and up-and-down, then holding out his hands while missiles sprout from his fingertips... all while the monster waits for the routine to finish.
- United Nations Is a Superpower: The UNICORN organization is the scientific superspy arm of the United Nations building and operating many gadgets, military vehicles and a Giant Robot at their disposal to fight against any threat the world faces.
- Would Hurt a Child: All the Gargoyles are not above harming children to get their way, The absolute crowner is what they did to their child spy Agent X7 after he defected to the heroes..
- X Meets Y: Ultraseven meets Gigantor meets Daimajin.
- You Don't Look Like You:
- GR-2 has a completely different design in this series. His head is shaped differently, and the rest of his body is identical to Giant Robo but with a black color scheme.
- Dakolar, the gigantic UFO mecha from the manga, is completely reimagined in the show, as an organic monster who fought Giant Robo twice.
- Red Cobra looks completely different in Episode 17 due to it being filmed early in the shows run. He is completely missing his buck teeth and has a cobra symbol embedded on his forehead that is never seen again after that episode. The producers of the English dub evidently mistook him for a new one off character and renamed him Dangor The Executioner as a result.
And the 1967 manga's includes examples of..
- An Ice Person: Two of the grade school manga's features two separate Ice powered villains, an Ice Robot and an Ice Kaiju that used a Breath Weapon against Robo and the heroes.
- Badass Normal: Daisaku is an 18 year old student and a candidate for an Olympic Marksmanship contest. He's mistaken for a United Nations sleeper agent trying to sabatoge Big Fire's world domination ploy and through chance becomes controller of Big Fire's trump card. Despite all this power thrusted on him, he is unfazed by it and simply wants to help Azuma and his team stop Big Fire to do the right thing.
- Big Bad: The BF Chief who only briefly appears in the manga. He is a genius warring kingpin and the one who issued the GR Project into fruition.
- Big Good: Azuma, the Chief of the United Nations team that assists Daisaku and Giant Robo in defeating Big Fire's ploy for global domination. After Daisaku is injured, he is most concerned about sending Daisaku out to control Robo for his young steward's safety over his own.
- Finger Firearms: GR-3's primary weapon is this.
- This is also GR-1's main weapon in most of the grade school manga's.
- Heroic Sacrifice: Giant Robo does this in the final issue of the second grade manga in a loose adaptation of the live action series' now infamous finale.
- Land, Sea, Sky: The GR units were made with this mindset.
- GR-1 was built for mainly land based attacks.
- GR-2 was designed to traverse in the ocean.
- GR-3 was created for air attacks.
- Mistaken for Spies: The beginning of the manga has Daisaku captured by Big Fire agents in Taiwan after mistaking him for a sleeper agent trying to destroy their factory producing GR-1.
- No Ending / Sequel Hook: The manga ends with Daisaku and GR-1 destroying Big Fire's undersea base drowning everyone inside it and the two rising up from the depths of the surface but Big Fire is still on the loose and the narrator assuring the audience Daisaku and Robo will fight until Big Fire is defeated for good.
- Rocket Punch: GR-2's signature weapon. Notable for predating the use of the weapon in Mazinger Z by a few years.
- This Is a Drill: In one of the grade school manga's, Big Fire uses a drill machine to burrow underneath Unicorn HQ to dispatch one of their traitorous agents.
- What Happened to the Mouse?: The Big Fire Chief, a rotund, pointy hatted villain leading his secret society, only briefly appears near the beginning of the manga plotting to capture GR-1...and seemingly vanishes after that.
And the second manga The Day the Earth Burned includes examples of...
- Adaptational Villainy: The IPO and its premiere agents, The Celestial 9, are introduced as antagonists in the story, whose agents threaten to murder Daisaku — an innocent child — multiple times in the first chapter. When it's revealed that Daisaku was actually introduced to illusory copies of them, the real Celestial 9 turn out to be a bundle of Manipulative Bastards and Smug Snakes at their very best.
- Ascended Extra: Cervantes The Dazzling was a minor BF Group antagonist in the OVA, but is one of Daisaku's favorite adoptive uncles in the manga.
- The remainder of the Celestial 9, whom were only mentioned in the OVA outside of Taisou and Go, play a much larger role in the manga. Considering their behavior towards Daisaku, it makes one wonder if it even worth seeing them.
- GR-3, Gaia and Black Ox, three of the robots previously seen only in the OVA's Evolving Credits, play a fairly large role during the earlier volumes of the manga.
- Black-and-Gray Morality: The BF group are terrorists, the IPO are only a little nicer Smug Snakes. Daisaku and Fei Long's splinter group are seemingly the only nice people in this world.
- Call-Back: A lot of the Yokoyama robots that appeared in the opening actually have fights with Giant Robo. Contenders include Black Ox and Gaia among others.
- Composite Character:
- Zangetsu is a combination of his old OVA design and Genya, and is a mysterious new BF member. With a few more drops of Psycho for Hire instead of stoicism.
- Giant Robo and his brethren are modeled after a mixture of their manga designs (more so with GR-2 and GR-3 who virtually are identical to their manga counterparts) but with their OVA backstories. The same thing applies to the other Big Fire robots as well as Big Fire's guardians who all look identical to their counterparts from Babel II, Tetsujin 28 and Mars.
- In Siege of Babel, it's revealed that Daisaku is in fact Big Fire effectively making him a composite of both Koichi from Babel II and the title character of Mars and the one responsible for all the death and destruction inflicted in the manga.
- Expy: The manga's Gin replaces the OVA's Ginrei, with a Japanese motif, more curves, and less maturity.
- Fanservice: Nearly every character in the manga has some fanservice element in play. Every character except for Inspector Ootsuka and Daisaku end up either being forcibly stripped naked, being put in sexual situations and in the case of the male characters, are given very noticeable bulges on their crotch (Even Giant Robo himself has a bulging crotch.)
- Hate Sink: The IPO here are nasty and obnoxious Smug Snakes who constantly taunt and demean Daisaku throughout the story. In the first chapter, Robo kills them all by crushing them with his hand, which at first seems pretty cathartic, but it turns out the characters Robo killed weren't the real IPO, who are less murderous then the ones first introduced yet somehow even more obnoxious.
- In Name Only: Despite overt similarities in name, the manga makes radical Adaptation Deviations from the OVA's meta narrative, such as Daisaku being raised by the BF Group and rendering the IPO as a competing group of villains. Several changes effectively make the manga come across as a long winded and mean spirited Take That! towards Mitsuteru Yokoyama's characters and legacy.
- Jerkass: Good. Lord. Just about everyone who isn't Daisaku, Gin, Fei Long, and a few others are so full of venom and hatred towards even their fellow teammates it's a wonder neither the IPO nor Big Fire hadn't collapsed as global organizations.
- Left Hanging: The manga had a sequel/finale manga "The Siege Of Babel" that ran for 6 volumes...until that also ended on an even more frustrating cliffhanger. Yippee...
- Send in the Clones: In The Siege of Babel, a mass produced army of GR-1's are commanded by Daisaku to be his personal body guards replacing his previous 3 servants during his time as Big Fire.
And the 2007 anime GR: Giant Robo includes examples of...
- Adaptational Backstory Change: In previous media, Giant Robo was built by Big Fire. In this series, he originated from an ancient civilization.
- Adaptation Name Change: Big Fire, the evil organization from previous media is know as G.R.O. note in this series.
- Adapted Out: Commander Azuma, the leader of the UN spec ops team Daisaku is apart of in the manga, is nowhere to be seen in the series, with Alex Mckenzie taking over his role.
- BFG: GR-1's arm turns into one in the Series Finale
- Body Horror: Whenever Giant Robo defeats an enemy GR unit in this series, the operator of said unit is terminated in a gruesome manner.
- Composite Character: Giant Robo's design for this series is a mix between his appearances from the Live Action series and the 1992 OVA.
- GR-2 is a mix between the manga and tokusatsu designs while GR-3 is a mix between his manga design and the design from his brief appearance in the OVA's Evolving Credits.
- Darker and Edgier: The Series has a more grim and foreboding tone in comparison to previous adaptations.
- Gray-and-Gray Morality: The GRO commits acts of terrorism to get their way, however their intention of stopping the Eldritch Abomination enemies by capturing all the GR units built to stop them isn't inherently bad and the UNISOM agents aren't much better, with them being under the orders of the same man running the GRO
- Heroic Sacrifice: Alex Mckenzie takes the full brunt of the GRO's machine gun fire to save the life of Daisaku near the end of the show
- I Cannot Self-Terminate: After being contracted with GR-1, Daisaku effectively becomes immortal. Whether or not this only applied to his time operating the title character or if he really has been permanently immortalized is never addressed in the series. note
- In Name Only: While the series does feature Daisaku and Giant Robo battling an evil organization, it lacks the camp of the source material in favor of being a gritty reboot of the live action version.
- Lost Technology: The GR units are portrayed as ancient mecha from a lost civilization.
- Mythology Gag: Plenty of them.
- GR-4 being based on Calamity/Cleopat from the live action series.
- One of the bad guys is named Johnny ''Soccor". note
- GR-5 is loosely based off of an obscure Giant Robo villain from a side manga Mitsuteru Yokoyama made for Shogakukan Comics.
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- GR-0 and its planet destroying powers are modeled after Gaia from Mitsuteru Yokoyama's 1976 manga Mars. GR-7 is based on Titan from the same manga.
- In Episode 10, Daisaku briefly wears the plaid trench coat, neck tie and khaki pants that his manga counterpart wore.
- The Manga version features a plethora of cameos of various Mitsuteru Yokoyama robots in the art style of GR Giant Robo at the very end of the manga. Several of the most identifiable ones include Monster, Black Ox, VL-2, and the titular robot from Tetsujin 28, The title robot from Yokoyama's obscure manga Thunder Daioh and Titan from Mars.
- The Manga version features an upgraded "Shin" form for GR-4 that models itself after the obscure OVA GR-4/Calamity design from the 1992 OVA Giant Robo manga and a "Mummy" themed upgrade for GR-1 that takes on a monstrous, mouthless version of the design from the GR manga.
- The Organization UNISOM being a name changed variant of the UNICORN organization from the 1967 series.
- The Man Behind the Man: Johnny Soccor, the producer of the BF tv network manipulated both GRO and UNISOM into fighting the GR units to sow fear and panic among the people to boost ratings.
- This Is a Drill: GR-4's right arm can transform into a giant drill for combat.
- United Nations Is a Superpower: Alex McKenzie calls UNISOM an "independent United Nations army".
- Would Hurt a Child: In the manga, D and V are abused by the GRO to the point where they are turned into a power source for the Shin GR-4 Tempest to fight against Giant Robo.
- Would Shoot A Woman: GRO will take zero prisoners if it means achieving their goals, as Poor Alex found out...