* AlternativeCharacterInterpretation:
** Many fans treat Kouji Kabuto as an arrogant, sexist JerkWithAHeartOfGold and a ChasteHero based on the first anime series, in spite of later retellings and remakes mostly based on his original manga incarnation where he was less of a sexist [[StayInTheKitchen toward Sayaka]] and less of a jerk, being nicer and tactful, yet also more of a pervert as befitting a GoNagai creation.
** Some fans think Sayaka Yumi is stuck-up, bratty and more interested in showing off than saving the world, whereas other fans state she was simply an ActionGirl who had very little patience with a loud-mouthed IdiotHero, as well as an aloof father who cared for her but was MarriedToTheJob.
** The interpretation of the relationship between Kouji and Sayaka also varies depending on the fan. Many consider them matter-of-factly the OfficialCouple, but some argue Kouji did not love Sayaka back, basing that interpretation on him teasing and mocking Sayaka constantly and showing interest towards any girl but Sayaka (Hitomi, Misato, Erika... even Minerva-X) and his being nicer to Maria in ''Anime/UFORoboGrendizer''. The former group of fans are quick to point out that:
### Most shows used the ChasteHero trope back then-- TheHero is too busy saving the world to get too concerned about romance;
### Kouji baited Sayaka because he ''was'' a sexist jerk and not because he was uninterested in her. BelligerentSexualTension was an UnbuiltTrope back then: the anime series showed plenty of moments where Kouji cared for Sayaka, the Creator/GoNagai manga made it way more obvious he liked Sayaka, and in the Creator/GosakuOta manga they ''do'' kiss.
### Kouji was more mature when he met Maria (when the first series began he was sixteen. In Grendizer he was already nineteen) and she was supposed to fill ''Sayaka'''s role.
:: And let's not get started with the ones think there was HoYay between Duke Fleed and him...
** Boss is the PluckyComicRelief to some fans. To other fans he is an unsung hero who always helps the main characters and gets nothing for his efforts despite some of his actions contributing to save the world. And depending who you talk to, he played straight or subverted the HopelessSuitor and StalkerWithACrush with Sayaka.
** Dr. Hell is a LargeHam and a CompleteMonster wanted to TakeOverTheWorld to force the whole humankind to [[KneelBeforeZod bow down to him]], but in ''Anime/ShinMazinger'' he was actually trying to save the world (although he thought conquering it was the proper way to accomplish that). Some fans actually feel SympathyForTheDevil, thinking it was unfair he worked so hard, scheming complex plans and strategies and crafting incredible scientific breakthroughs only to be defeated, crushed and humiliated over and over and over by a loud-mouthed, Jerkass IdiotHero with a cool HumongousMecha. People who know about his Backstory also tends to see him as TheWoobie.
** Yuri, Sayaka's BrattyHalfPint cousin, is regarded by some fans as an insufferable, unbearable brat. Other fans see her as TheWoobie, a poor little girl yearning for attention because her parents neglect her constantly.
* AscendedMeme: The "Boss saved the world" joke is pretty funny when you realize that he really saved the world during the original series and sequel, even moreso in ''Anime/{{Mazinkaiser}}''.
* AwesomeMusic + EarWorm: [[http://www.youtube.com/watch?v=GKKshSa-qWA Majin GO! Majin GO! MAJINGA Z!]]
** Despite all its flaws, the Tranzor Z dub at least had a [[http://www.youtube.com/watch?v=KgjhYxh7I64 catchy theme]] in its opening.
* CargoShip: A mind-screwing example, overlapping with RoboShip. Minerva-X was a FemBot was programmed to be Mazinger-Z's BattleCouple. So she was in love with it. However, she ''also'' was a HumongousMecha, only unlike Mazinger she was sentient, had her own mind and could feel, think and act on her own. Sayaka declaring only ''her'' FemBot Aphrodite-A was Mazinger-Z's true BattleCouple partner did not help matters...
* CashCowFranchise
* CompleteMonster:
** Dr. Hell's {{backstory}} features [[AbusiveParents being mishandled by his parents]] during the childhood riddled with misfortune, discrimination and humiliation, which formed him into the [[WoobieDestroyerOfWorlds relentlessly unforgiving]], [[KickTheDog dastardly]] man with a tendency to [[MurderTheHypotenuse dispatch romantic rivals]]. [[OmnicidalManiac He wishes to purge the world of idiots]] and force the survivors to [[KneelBeforeZod bow down to him]]. When older, Dr. Hell designed {{Doomsday Device}}s for Hitler and made human experiments with inmates in Auswitch. Several years after the end of WWII, he led an archaeological research expedition to the Greek Island of Bardos, where he found an army of HumongousMecha. Right away, he murdered the whole expedition ''minus Dr. Kabuto''. Later, he got himself an army of {{Mook}}s by mechanizing the brains of corpses and turning them into expendable {{Cyborg}}s programmed to serve him faithfully and unquestionably. He constantly designs WeaponsOfMassDestruction his [[CoDragons second-in-commands]] use to obliterate whole cities.
** For Baron Ashura, "good" and "evil" are meaningless words made up by human beings. He/she is perfectly capable of hitting children (once also having blown apart the wheelchair of a disabled girl to prevent her from escaping), murdering little dog cubs or commiting worse atrocities if he thinks it will further his/her goals, like machine gun several survivors of a shipwreck as he/she gloats they will be revived like cyborgs and turned into his/her slaves or like slaying a hostage or pawn after he or she has outlived his or her usefulness. He/she is easily Hell's most brutal henchmen, ''usually'' the most loyal, and would do anything to turn Hell's dreams into reality. Under his/her command, his/her Mechanical Beasts set whole cities on fire, bombard them with missiles into smoking ruins, cause earthquakes to bring them down, cut ships in halves, ''murdering the whole passage'', shoot or blast whole planes down, blow up trains and buses and thus kill thounsands of people.
** Before Hell met him and saved his life, Count Brocken was a Nazi officer who was considered particularly blood-thirsty by his own partners. He also is the first of Hell's henchmen to kill someone on panel on the manga ''even before Ashura'', and he is capable of joking as he cuts heads off.
** In one of the alternate realities from ''ShinMazingerZero'', [[spoiler:Dr. Kabuto]] himself. He [[spoiler:murdered his son Kenzo,]] tried to murder [[spoiler:his grandson]] Kouji, and [[spoiler:raped and murdered Sayaka]] in front of an impotent Kouji.
** Marquis Janus is a witch more than willing to befriend people under disguise before poisoning them. Another of her acts in the Gosaku Ota manga episodes is [[spoiler:slicing Misato in half]] to pay Tetsuya back for defeating her in a fair fight.
** Great Marshall of Darkness is downright cruel, especially in the Ota episodes: His first strategy was blowing up one city and then warning he would do the same thing in Tokyo unless the Japanese Government destroyed the Fortress of Science and Great Mazinger. The Government caves in - and [[spoiler:Great Marshall razes Tokyo to rubble anyways]]. Another of his plans involves creating a KillSat to blow up from the space any target he feels like annihilating. You can say [[spoiler: Dr. Hell became an even greater bastard after dying and being brought back to life as a servant of Mykene Emperor.]]
** King Vega's idea of what to do when your homeworld is becoming unstable and on the verge of destruction is to begin conquering and colonizing another worlds. Original inhabitants of a planet are usually exterminated, although in some instances they are "only" enslaved. To put his mindset in perspective, when his own daughter Rubina asked him why he isn't willing to make peace with the people of Earth, ''he couldn't come up with an answer''.
** Barados deliberately targets women and children in order to exterminate the Fleed's population, which is without mentioning the [[spoiler: "let's drop several hundred of children from three thousand meters from height"]] -incident.
* EnsembleDarkHorse: In a meta sense. Go Nagai originally made this simply to blow off steam while writing the [[CrapsackWorld horribly depressing]] ''{{Devilman}}'' manga and directing the anime. Mazinger ''blew'' Devilman out of the water in terms of popularity, which Nagai always had [[CreatorBreakdown odd feelings]] about.
** Boss, the resident JokeCharacter, is extremely popular with the fandom.
* FirstInstallmentWins: ''MazingerZ'' has got a lot of sequels (''GreatMazinger'', ''UFORoboGrendizer''...), alternate series (''GodMazinger'', ''MazinkaiserSKL'') and reimaginations (''{{Mazinkaiser}}'', ''ShinMazinger'', ''ShinMazingerZero''...). None of them has had the success, the impact or the popularity enjoyed by the original series.
** Even the remakes (''Mazinkaiser'', ''Shin Mazinger'', ''Shin Mazinger Zero'') tend to focus on the Mazinger Z era, as Kouji gets put front and center while his successor protagonists Tetsuya of ''Great Mazinger'' and Duke Fleed of ''Grendizer'' are sidelined or completely ignored.
* GermansLoveDavidHasselhoff: In Spain, everybody loves Mazinger Z, [[http://upload.wikimedia.org/wikipedia/commons/c/c8/Mazinger_Z_in_Tarragona_%2801%29.jpg to the point where they've built a 10-metre fiberglass statue of it]].
* HarsherInHindsight: In episode 17, Holzon V3 unleashed a chain of strong earthquakes which left several Japanese cities in ruins and killed a lot of people. In the wake of Fukushima, that episode looks even more tragic.
** And Dr. Kabuto's manor, where he built Mazinger-Z, was located on the Forest of Aokigahara. Why is that relevant? [[http://en.wikipedia.org/wiki/Aokigahara Read and get creeped out]]. At least it seems clear why Juuzo chose that place: nobody would try to bother him or spy on him.
* HilariousInHindsight: Boss had a long-haired, female cousin. ''[[Anime/NeonGenesisEvangelion Her name was Misato.]]'' Probably because his seiyuu in ''Anime/{{Mazinkaiser}}'' is Creator/FumihikoTachiki AKA Gendo.
** Also, the name Mazinger is similar enough to the name of pope Benedict XVI/Josef Ratzinger, that it lead to a flood of jokes. [http://nonciclopedia.wikia.com/wiki/Papa_Mazinga] Especially the film title "Mazinger vs Devilman" becomes extremely hilarious in that context.
* MagnificentBastard: Archduke Gorgon
* MemeticMutation: See BeamMeUpScotty.
** "Age of Fatso" for Boss, and "Boss saved the world".
** The legendary HK subtitles are a goldmine of these. Outside of the aforementioned "we are entering the age of Fatso", gems include "don't be a cockhorse", "I AM MAKING THINKING NOISES HERE", and referring to Dr Hell's scepter as the Crabstick.
* NauseaFuel: The Mazinger series, being made by Creator/GoNagai, have plenty of this, although compared with works like ''Manga/{{Devilman}}'', Nagai toned it down:
** ''Anime/MazingerZ'': In one of the first manga chapters, [[TheHero Kouji]] knocked an [[{{Mook}} Iron Mask]]'s helmet down during a fight, and then saw his brain was visible underneath (with tubes and circuitry sticking out of the brain matter). Shortly after, when that Iron Mask attacked him, Kouji accidentally slit his throat, and a gush of blood splashed him.
** Later, when he was fighting the [[RidiculouslyHumanRobot Gamia]] [[RobotGirl sisters]], he chopped them into pieces. They were so human-like they bled as he did so, and their remains lying on the floor looked convincingly like dismembered, blood-stained humans corpses (as Kouji noted, trying not retching).
** ''Anime/GreatMazinger'': One of the manga versions gave us a ''delightful'' panel where Marquisse Janus bisected secondary character Misato lengthwise with one single nail of her HumongousMecha.
** ''Anime/UFORoboGrendizer'': The scenes of the Fleedian genocide in the manga. Along with the visions of charred corpses, there is a particularly brutal flashback where one of the Vegan commanders lets drop hundreds of people (including children) from several thousands of meters of height. Some panels showed heads of people splattering upon hitting the ground. Duke Fleed described the scene as "a deluge of children falling from the sky".
** ''ShinMazingerZero'': Where to begin? In the first arc you have Kouji getting his arm ripped off and Sayaka getting raped and then impaled with several dozens of metal rods. In the next arc, the Gamia triplets shredded two guards to thin ribbons. Shortly after that, another guard got shot through her skull and then sliced in half, and the third got cut in half when she tried to run away...
* NightmareRetardant: Count Brocken's appearance-- a man whose head and body are split apart, with the former constantly hovering around the later, talking, laughing and screaming-- was meant be frightening (in the manga he got Kouji reaaaly scared when he showed up for first time, and in the anime [[TheDragon Baron Ashura]] initially thought it a bodyless ghost). Buuuut in the manga Boss managed to grab his head when he got distracted, and Kouji and his friends played keep-away and Brocken Ball (soccer with Brocken's head: the only rule is everyone wins-- except Brocken). It was a tad hard taking him seriously after that. That scene did not happen in the anime, but on the other hand you had Brocken's head and body arguing with themselves-- and the body punching the head-- or Ashura grabbing his head and slapping it around...
* OT3: There are not many fans who do this, but some of them consider Kouji/Sayaka/Maria is a solution to the most important LoveTriangle in the trilogy (nobody seems considering Kouji/Sayaka/Boss or Tetsuya/Jun/Boss, nevertheless. [[ButtMonkey Poor Boss]]).
** It is lampshaded in this Super Robot Wars {{Yonkoma}} comic: [[http://www.dra-mata.com/manga/4koma/old/tsurugi07.jpg]]
* OlderThanTheyThink: ''Anime/MazingerZ'' often faltered in international releases due to people accusing it of ripping off shows it inspired, such as ''Anime/{{Voltron}}''[=/=]''Anime/GoLion'' and it's own spinoff/sequel ''Anime/UFORoboGrendizer''.
* RoboShip: Minerva-X sees herself and Mazinger-Z like partners.
* RootingForTheEmpire: Dr. Hell is a LargeHam CompleteMonster wanted to TakeOverTheWorld to force the whole humankind to [[KneelBeforeZod bow down to him]], but some fans know about his Backstory tend to see him like TheWoobie (or a WoobieDestroyerOfWorlds) and actually feel sympathetic towards him, thinking it was unfair he worked so hard, scheming complex plans and strategies and crafting incredible scientific breakthroughs only to be defeated, crushed and humiliated over and over and over by a loud-mouthed, Jerkass IdiotHero teenager with a cool HumongousMecha.
* SequelDisplacement: ''Grendizer'' was aired in France before ''Mazinger-Z'', becoming phenomenally popular. When ''Mazinger-Z'' was aired, it was accused of ripping-off one of its sequels.
* ShipToShipCombat: In this franchise's fandom you find two kind of people: those that think that ''[[Anime/MazingerZ Kouji Kabuto]]'' was in love with Sayaka Yumi, and those that think that he barely cared for her like a friend (see Alternate Character Interpretation above). And then you have the people who ships Sayaka with Boss, or the arguments among Duke/Hikaru and Duke/Rubina shippers. However, debates between shippers are refreshingly civil and without mud-slinging.
* ShipperOnDeck: Shiro ships his brother Kouji and Sayaka.
** Kouji also shipped his little brother with Lorelei... until things go FromBadToWorse.
** And Minerva-X [[http://www.onemanga.com/Shin_Mazinger_Zero/8/30/ ships Kouji/Sayaka]] in ''ShinMazingerZero''.
* StopHelpingMe: Several times Kouji complained to Sayaka that she was getting in the way, hindering him and doing more harm than good. And even if he had a point, he wasn't exactly diplomatic about it... It was hilariously GenderFlipped with Jun and Boss later. Jun would be fighting, and Boss got in the way constantly in order to "help".
* ValuesDissonance: The reason why Kouji's [[StayInTheKitchen blatant sexism towards Sayaka]] (and the main reason why she was so {{Tsundere}} for him) had to be toned down as the Mazinsaga continued. It'd be [[DudeNotFunny very unfunny]] to have him say "girls must not fight and you are stupid for thinking otherwise" in Anime/{{Mazinkaiser}}, after all.
** In fact, that characterization was more in line with his personality in the original manga.
* UncannyValley: The Gamia sisters were three identical {{Robot Girl}}s. Outwardly they seemed three ordinary human blonde girls... until you noticed their skin was unusually pale, their motions were eerily mechanical, their expressions were completely aloof and unchanging, they were nearly always silent and they never blinked. Anybody saw them could immediately tell there was something seriously wrong with them... before they began punching holes in walls and shredding things with razor-sharp hair.
** Most of the human-looking androids Dr. Hell built were sufficiently well done to reasonably pass for humans. An exception was [[spoiler:a Kouji-alike android. That robot looked like Kouji, but it behaved differently and was mute.]
** Averted with [[spoiler:Lorelei]].
* WhatDoYouMeanItsForKids: Like many GoNagai works, Mazinger Z was aimed at children and young teens in Japan, but judged too violent for children in other countries.
* TheWoobie:
** Shiro. His parents died when he was barely a toddler. His grandfather Juuzo took them in, but he hired a maid to raise them because he was barely ever home. Several years later, in one single day, Rumi (the maid; he treated her like a a kind of older sister) and his grandfather was murdered (and Juuzo died right in front of his grandsons), and his older brother Kouji nearly stomps him under the foot of an HumongousMecha. We see during the series he is lonely because he don't have parents to stay with, and Koji, Boss, and Sayaka are usually busy fighting a [[{{Robeast}} Mechanical Beast]]. He had a crush on a cute kid called Lorelei, but she [[spoiler:died]]. And in one of the last episodes, [[spoiler:Dr. Hell created a robot that looked like Kouji and Shiro's mother. She managed to convince him she was his real mother and tried to manipulate him to blow up the Jet Scrander. Later he had to shoot her-- while still unsure if she was his real mother.]] Have I mentioned he was only ''ten'' when the series began? Later, in ''Anime/GreatMazinger', he found out [[spoiler:his father was not dead. And he had let his sons believed during years he was dead.]] And then, shortly after [[spoiler:Shiro forgave him and they made up, his father Kenzo died. [[KilledOffForReal For real, this time]].]]
** Dr. Hell. His parents were poor and his mother abused him constantly when he was a little kid, calling him ugly, telling she had never wanted to having him and her life would be easier without him, beating the crap out of him for anything while his father shrugged and ignored it. No child wanted to befriend him either, telling him he was ugly and weird. He found a getaway in reading books and started getting exceptionally good grades in school, but the only thing that accomplished was his teachers accusing him of cheating and giving his schoolmates an excuse to bully him. It went FromBadToWorse when he grew up. He fell in love with a woman but then he found out she was in love with one of the only people who had shown him respect (neither of them had wanted to hurt him, but his sanity was already so frayed he genuinely believed they had pretended to be his friends to backstab him).
** Yuri, Sayaka's cousin, was an annnoying, cranky, demanding BrattyHalfPint. She acted like that because her parents were too MarriedToTheJob to take care of her. Also, she is an IllGirl in a wheelchair, and she refuses to undergo therapy to walk again because she is afraid everyone will leave her alone again.
** Mitsuo, Shiro's schoolmate, was a fat, shy kid wore glasses. Needless to say, bullies targeted him, and he hardly had friends. Shiro scared the bullies away once, but he told Mitsuo he could not help him and be his friend if he did not learn to stand up for himself. All that piled-up abuse was the reason he pulled a TooDumbToLive stunt.
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