History Manga / GiantRobo

** The Unicorn symbol on GR's forehead being the shape of a Unicorn, which is also the name of the IPO equivalent in the toku version.

** 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 ''[[Anime/GunBuster Gunbuster]]''.

** 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 PapaWolf 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 ''[[Anime/GunBuster Gunbuster]]''.
*** The manga only GR-4 being an homage to Calamity, the EvilKnockoff of Giant Robo from the toku.
*** The Unicorn 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.

* Creator/YosukeAkimoto: As Alberto the Shockwave.

* DarkerAndEdgier:
** The Series has a more grim and foreboding tone in comparison to previous adaptations.

* InNameOnly: While the series does feature Daisaku and Giant Robo battling an evil organization, it lacks the campy charm of the source material in favor of being a Gritty Reboot of the live action version.

* GrayAndGrayMorality: The GRO commits acts of terrorism to get their way,[[spoiler: however their intention of stopping the EldritchAbomination enemies from that]] [[spoiler: [[WellIntentionedExtremist by capturing all the GR units built to stop them isn't inherently bad]]]] and the UNISOM agents aren't much better, with them [[spoiler: being under the orders of the same man running the GRO]]

** Perhaps his shock came from [[MyGodWhatHaveIDone realizing he effectively 'murdered' Daisaku's father figure]][[spoiler: just like how he accidently own father?]]

* GrayAndGrayMorality: The GRO commits acts of terrorism to get their way,[[spoiler: however their intention of stopping the EldritchAbomination enemies]] [[spoiler: [[WellIntentionedExtremist by capturing all the GR units to stop them isn't inherently bad]]]] and the UNISOM agents aren't much better, with them [[spoiler: being under the orders of the same man running the GRO]]

* GrayAndGrayMorality: The GRO commits acts of terrorism to get their way,[[spoiler: however their intention of stopping the EldritchAbomination enemies]] [[spoiler: WellIntentionedExtremist by capturing all the GR units to stop them isn't inherently bad]] and the UNISOM agents aren't much better, with them [[spoiler: being under the orders of the same man running the GRO]]

* GrayAndGrayMorality: The GRO commits acts of terrorism to get their way, their intention [[spoiler: of stopping the EldritchAbomination enemies by capturing all the GR units to stop them isn't inherently bad]] and the UNISOM agents aren't much better, with them [[spoiler: being under the orders of the same man running the GRO]]

*** Giant Robo's PapaWolf instincts in protecting Daisaku when he is in peril

*** Robo being a much slower, lumbering mech being similar to the weightier version of GR seen in the toku.

** Despite only loosely taking inspiration from the 1967 ''Giant Robo'' tokusatsu, there's a remarkable amount of plot similarities

*** Robo being a much slower, lumbering mech being similar to the weightier version of GR seen in the toku.

** Despite only loosely taking inspiration from the 1967 Giant Robo tokusatsu, there's a remarkable amount of plot similarities

*** Robo being a much slower, lumbering mech being similar to the weightier version of GR seen in the toku.

*** 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 [[Anime/Gunbuster]].

*** Robo being a much slower, lumbering mech being similar to the weightier version of GR seen in the toku.

*** The Unicorn symbol on GR's forehead being [[GeniusBonus 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.

** ShoutOut: Ginrei Robo is a parody of Aphrodite-A from ''Anime/MazingerZ'', and Daisaku also gets to pilot an ersatz ''[[Anime/{{Gigantor}} Tetsujin 28-go]]'', revamped in the same way Giant Robo itself was in the OVA series.

** Perhaps his shock came from him [[MyGodWhatHaveIDone realizing the severity of him 'murdering' Daisaku's father figure]][[spoiler: just like how he accidently own father?]]

* AdaptationalVillainy: 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 [[SubvertedTrope it's revealed]] that Daisaku was actually introduced to illusory copies of them, the ''real'' Nine Heavenly Kings [[DoubleSubverted turn out to be]] a bundle of {{Manipulative Bastard}}s and {{Smug Snake}}s at their very best.

* AdaptationalVillainy: The IPO and its premire 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 [[SubvertedTrope it's revealed]] that Daisaku was actually introduced to illusory copies of them, the ''real'' Nine Heavenly Kings [[DoubleSubverted turn out to be]] a bundle of {{Manipulative Bastard}}s and {{Smug Snake}}s at their very best.

* RocketPunch: GR-2's signature weapon. Notable for predating the use of the weapon in Anime/MazingerZ by a few years.
* ThisIsADrill: In one of the side manga's, Big Fire uses a drill machine to burrow underneath Unicorn HQ to capture one of their traitorous agents.
* WhatHappenedToTheMouse: The Big Fire Chief, a rotund pointy hatted villain leading his secret society, only briefly appears near the beggining of the manga plotting to capture GR-1...and seemingly vanishes after that.

* AdaptationalVillainy: The IPO and its Nine Heavenly Kings are introduced as antagonists in the story, whose agents threaten to murder Daisaku -- an innocent child -- multiple times in the first chapter. When [[SubvertedTrope it's revealed]] that Daisaku was actually introduced to illusory copies of them, the ''real'' Nine Heavenly Kings [[DoubleSubverted turn out to be]] a bundle of {{Manipulative Bastard}}s and {{Smug Snake}}s.
* AscendedExtra: The Dazzling Cervantes was a minor BF Group antagonist in the OVA, but is one of Daisaku's favorite adoptive uncles in the manga.
* BlackAndGrayMorality: The BF group are terrorists, the IPO are only a little nicer {{Smug Snake}}s. Daisaku and Fei Long's splinter group are the only nice people it seems.

* HateSink: The IPO here are nasty and obnoxious {{Smug Snake}}s who constantly taunt Daisaku throughout the story. In the first chapter, Robo kills them all by crushing them with his hand, which is pretty cathartic. Turns out the characters Robo killed weren't the real IPO, who are less murderous then the ones first introduced but even more obnoxious.
* InNameOnly: Despite overt similarities in name, the manga makes radical {{Adaptation Deviation}}s from the OVA, 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 one long winded and mean spirited TakeThat towards Mitsuteru Yokoyama's characters and legacy.

* AdaptedOut: 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.

* CompositeCharacter: Giant Robo's design for this series is a mix between his appearances from the Live Action version and the 1992 OVA.

** Whenever Giant Robo defeats an enemy GR unit in this series, the operator of said unit is [[BodyHorror terminated in a gruesome manner]].

* InNameOnly: While the series does feature Daisaku and Giant Robo battling an evil organization, it lacks most of the heart and charm of the source material.

** [[https://media.discordapp.net/attachments/580210324708261889/620400652710838279/15646061460882348908709257073774_by_daimosz_ddczaro-pre.png?width=503&height=670 The Manga version features an upgraded "Shin" form for GR-4 that models itself after the obscure OVA GR-4/Calamity robot from the 1992 OVA Giant Robo manga and a "Mummy" upgrade for GR-1 that takes on a more monstrous and faceless version of the design from the GR manga.]]

** And Daisaku and Tetsugyu [[spoiler: the latter saw Daisaku's expression when he damaged Robo's arm. The same feeling of pain as when Tesugyu slew his own father.]]

* NiceHat: Zangetsu, who has a five second role yet still manages to prove a fan favourite due to his very nice hat. And he might be [[EpilepticTrees the main character's father.]]

* NotSoDifferent: Daisaku and Genya.
** And Daisaku and Tetsugyu [[spoiler: the latter saw Daisaku's expression when he damaged Robo's arm. The same feeling of pain as when Tesugyu slew his own father.]]

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* {{Expy}}: Most characters of the OVA (who aren't from the original manga or anime) are Expys of Yokohama's other works, such as:

!!And much like its SpiritualSuccessor, the ''Giant Robo'' Toku adored its many tropes, [[UrExample inventing several examples of now classic Mecha and Tokusatsu tropes]]. The ''Giant Robo'' includes examples of...

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