MazingerZ/TropesAToC | MazingerZ/TropesDToF | MazingerZ/TropesGToI | MazingerZ/TropesJToL | MazingerZ/TropesMToO | MazingerZ/TropesPToR | '''Tropes S To U''' | MazingerZ/TropesVToZ | [[ShoutOut/MazingerZ Shout-Outs]]

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!!!''Anime/MazingerZ'' provides examples of the following tropes:
* SacrificialLamb: [[spoiler: "MORIMORI-HAKASEEEEEEEEE!!!!"]]
* SadisticChoice: It happened many times. Often Baron Ashura held someone hostage and threatened with to kill him or her if Kouji did not surrender, but there were different instances:
** In episode 17, Dr. Hell crafted a Mechanical Beast could set earthquakes off. After using it to bring down several Japanese cities, Baron Ashura threatened with obliterating Tokyo unless Dr. Hell was appointed director of Photonic Research Institute. If the heroes gave in, Dr. Hell would have full and unopposed access and control to the lodes the [[{{Unobtainium}} Japanium]] was extracted from and plans to build his own [[PhlebotinumBattery Photon Atomic engines]], and nobody would be able to stop him from [[TakeOverTheWorld taking over the world]]. If they did not agree, Tokyo would become a giant hole in the ground.
** In episode 18, a Mechanical Monster cuts a passenger ship in half. A woman reaches a lifeboat but her mother has been caught in one of the whirlpools formed by the sinking ship. If she stays away, her mother will die. If she comes closer, maybe both of them will die. At the end [[spoiler:her mother chose for her. She shoved the boat away her. She drowned, but she managed to save her daughter's life.]]
** In episode 31, Dr. Hell kidnapped three men, hypnotized them in piloting three of his Mechanical Beasts and ordered them to attack Mazinger-Z. Thus, Kouji found himself severely limited, since if he attacked full-force, the prisoners could die.
** In episode 61, Lorelei, a little girl his little brother was infatuated with, fused with a {{Robeast}} and challenged Mazinger-Z. She could not be split from the robot, and if Kouji fought, he would kill her and would break his brother's heart. [[spoiler: Finally Kouji had to fight, and Lorelei died.]]
* SadlyMythtaken: This series and ''Anime/MazingerZ'' and another series of the franchise (''Anime/GreatMazinger'', ''ZMazinger'', ''Anime/ShinMazinger'') did this with the Greek myths.
** In the original myths Hades was the God of Underworld, his default shape was humanoid (but like all Greek deities he was a shape-shifter), and even though he was not exactly a nice guy, he was not worse than his relatives. In the Mazinverse he is a GodOfEvil whose (unchangeable) shape is that of a giant being of fire and wishes conquering the surface world.
** ZMazinger is worse in that regard: the Greek gods were {{Sufficiently Advanced Alien}}s that ancient Greeks mistook for gods, Zeus was a rebel turned on their comrades to protect the humans, and Mazinger was his own HumongousMecha.
** Again in ''ShinMazinger'' Zeus shows up but he is way different of the myth -let's say his severed hand is used to build the God Scrander-, and Hades is again a flaming, humongous GodofEvil.
* {{Samurai}}: In episode 26 Dr. Hell [[WorthyOpponent praised]] Kouji, stating that he had to have blood samurai because he was a strong, courageous and tenacious warrior, right like a samurai.
* SayMyName: "NO! KOUJIIIIIII!!!" "Sayaka... SAYAKA!!!!!!!!!" Kouji and Sayaka often yelled each other's name [[BattleCouple when one of them was in danger]]... or when they were pissed off at each other... [[BelligerentSexualTension which happened often]] since they were the prototype for the TakahashiCouple.
* ScoobyDooHoax: In one anime episode, the heroes got reports of a huge, aquatic monster living on a chain of lakes near from Mount Fuji. When Kouji went to investigate to the site, a witch appeared all of sudden and warned him the lake monster would curse him if he did not leave. That woman had been scaring away whoever came to investigate the monster sightings. It did not take long for Kouji to discover [[spoiler:that witch was Baron Ashura in disguise and the monster was a Mechanical Beast (Granada E3). Baron Ashura was using the curse hoax to hide their activities (mining the lakebed for uranium to fabricate nuclear bombs).]]
** In one manga chapter, Kouji and his friends go to a hot springs resort. However, the area is apparently being haunted by ghosts. Boss is terrified but Kouji does not believe one word of it, so he and Sayaka set to investigate what is happening. Quickly they discover [[spoiler:the ghosts in reality are androids commanded by Count Brocken, one of the CoDragons of Dr. Hell.]]
* SculptedPhysique: [[AbusivePrecursors The Mykene]] have bodies that are part organic, part mechanic.
* SeaMine: In episode 22, Baron Ashura used electric sea mines -called Balanger M1-. They were light blue with dark blue spikes that covered its bodies, and they were able to move through water and home in on an opponent. Once they came into contact, they released electric charges to hurt their target. That episode also featured Mechanical Beast Balanger M2, a giant robot capable to transform into a red, spiky, electric sea mine.
* SeaMonster: The Dragonosaurus from a {{Crossover}} movie. It was a very bizarre monster: its body was a amorphous, red-and-black blob with a face. Several long, snake-like creasted heads sprouted from it.
* SelectiveMagnetism: Mechanical Beast Bazil F7 was armed with magnetically-charged armor plates that could be detached off its body and launched at its adversary (with the purpose of sticking to it and disrupting their mechanisms). However the magnets did not attract other objects when they were working, and they stuck to Mazinger-Z and Aphrodite-A in spite of they are not made of steel to begin with.
* TheSeventies: Started in 1972.
* SeventiesHair: Well, obviously. Kouji and Dr. Hell are prime examples of this.
* ShipSinking:
** Sayaka / Boss: Early on Boss was ''very'' infatuated with Sayaka who was totally smitten with Kouji. However, Sayaka's reaction during one of the finalr arcs of the manga suggests ''maybe'' Boss had one chance... but he did not take it. So he cared no longer or he valued his friendship with Kouji too for trying anything with Sayaka.
** Kouji / Erika: Erika was a enigmatic, amnesiac girl showed up one day in the [[HomeBase Institute]]. There was a certain chemistry between Koui and her... but it went nowhere since [[spoiler:it was revealed she was [[RidiculouslyHumanRobot an]] [[RobotGirl android]]. And then she got murdered.]]
* ShipTease:
** The original GoNagai ''Anime/MazingerZ'' manga had way more ShipTease between Kouji and Sayaka than the anime adaptation. Thus, when Sayaka told Kouji he was being transfered to her high-school (in the early chapters), he blushed and stated he "would look forward to it".
** And when Boss got a crush on a teacher, Kouji was glad because then he "would have no competition for Sayaka's heart".
** And then you have the HotSpringsEpisode. Kouji and Sayaka accidentally see each other naked in the springs, run away and collide with each other (they were so started they did not realize the spring was circular and they were running into circles). Kouji helped Sayaka on her feet, and after a row of mutual apologies they bathed together, back-to-back and with [[LuminescentBlush huge blushes on their faces]]. That scene doubled like both a CMOF and a CMOH, and it was adapted in a ''Anime/ShinMazinger'' episode.
** In the anime had less teasing moments but they definitely were there, although often in the way of BelligerentSexualTension. In episode 7, Shiro is praising Boss for being the OnlySaneMan in that episode, and Boss is getting smug... until one of his goons suggest him noticing Kouji and Sayaka are walking away together. Boss got quickly angry.
** In episode 29, Kouji sees a [[{{Robeast}} Mechanical Beast]] -Grengus C3- walking from the place where Aphrodite A had gone to a while ago, and he... completely freaks out. He hops on the first bike he finds -not realizing it was not his- and drives towards the place the Beast came from, screaming "[[SayMyName SAYAKA!]]" the whole way. When he found her, she was lying on the ground, knocked out. He managed to wake her up and then he hugged her silently.
** And in episode 32 they are having their... third or fourth fight in that episode. Meanwhile, Shiro is fortune-telling and he tells "It is funny. The cards tell they are destined to be together forever."
** Episode 48, Sayaka and Boss are getting fun teasing a disgruntled Kouji at the end of the episode. Then Sayaka asked Boss going out to have lunch. Kouji flipped instantly, getting jealousy and shouting "What is going between them?"
** In episode 52 Kouji and Sayaka have their bigger fight. Kouji gets badly wounded after sortying alone, and [[DudeShesLikeInAComa Sayaka kisses him while he is sleeping in a hospital bed]]. Later Kouji is bleeding on the ground, unconscious and maybe dead and Sayaka makes an AnguishedDeclarationOfLove ("Please, don't die. I want getting married to you). Then he opens his eyes, smiles and replies he is not going to get married to a tomboy. Sayaka ''roars'' and she decides killing him for real.
** And then you have all times Sayaka got jealousy when a girl (even if she was non-human!) got close to Kouji: Minerva, Misato, Erika...
** Their last scene in episode 92 went they flying together to America, and smiling at each other.
** In the ''Mazinger-Z versus Great General or Darkness'' feature, Sayaka cried as she was listening to Kouji going through his DespairEventHorizon DramaticSitdown moment. Later Kouji and she got an AlmostKiss before his departure.
** In the GosakuOta alternate manga adapted that scene, though, they DID kiss. And it was ''[[TheBigDamnKiss glorious]]'' (they were floating in a void, and flower petals fell around them).
** In that same alternate universe, after that scene their relationship got uneasy for a while since Kouji, unsure of how dealing with it, was avoiding her, and Sayaka got saddened because he was distancing from her. However, at the final scene, [[spoiler:the group meets Kouji again and he reveals he has been turned into a cyborg due to his body becoming badly harmed during the FinalBattle. He says Sayaka he's sorry because he no longer is human...]] and her reaction was hugging him and telling she does not care, and he is still ''her'' Kouji.
** Again in that universe, Boss kissed an unconscious and bedridden Sayaka before leaving for a seemingly unwinnable battle, telling that all he could make for the girl he loved was dying like an hero.
** And in the ''Anime/GreatMazinger'' GosakuOta manga, when Kouji and Sayaka [[BackForTheFinale returned]] from America, Tetsuya teased Kouji, asking what he had done with Sayaka during their stay overseas. Kouji blushed.
** Talking about Tetsuya, there was a healthy amount of teasing between Jun and him. Jun flirting with an ObliviousToLove Tetsuya, Jun pretending a sprained ankle just so Tetsuya rubbed her foot (unfortunately it did not work like she hoped), Tetsuya returning the unwanted gifts of a StalkerWithACrush in person and warning that Jun wanted being left alone, he getting jealousy and accusing her of wanting to replace him with Kouji (and being slapped for it. Seriously, it was stupid)... And in the GoNagai manga a [[{{Robeast}} War Beast]] got Jun hostage. Cue Great Mazinger beheading the Beast with [[ArmedLegs a brutal kick]] as Tetsuya yelled she was a very special person for him.
** Teasing between Boss and both female leads (Sayaka and Jun) revolved around Boss being a StalkerWithACrush and both girls ignoring or pretending not noticing his poor attempts. However, sometimes you got them standing up to him when Kouji or Tetsuya were acting stupid.
** In ''Anime/UFORoboGrendizer'' there was a good amount of teasing between Duke and Hikaru. Many scenes featured them together, sometimes at night, invoking the ire of Hikaru's OverprotectiveDad who threatened with hanging Duke with his bare hands if he gets closer to his daughter (NotHyperbole). And in the ''UFO Robo Grendizer versus Great Mazinger'' feature, Goro teases his big sister and Duke are in love.
** There also was BelligerentSexualTension between Kouji and Maria (interesting, considering Sayaka was meant to be newest team member and Maria replaced her due to ExecutiveMeddling, filling her role). In a scene, Kouji tries to wake up an unconscious Maria using [[=CPR=]], and then Maria woke up suddenly and slapped him.
** Sayaka and Maria use to fight over Kouji in universes where they interact, like the ''VideoGame/SuperRobotWars'' games or the ''Dynamic Heroes e-manga''. In the final scene, the whole cast are giving goodbye to Duke and Maria. Then smirking Sayaka suddenly snuggles up Kouji, and Maria goes ballistic.
** In ''Anime/{{Mazinkaiser}}'' twins Loru and Lori ask Kouji if he is in love with Sayaka, and he starts stuttering.
** And in the ''Mazinkaiser'' manga, Sayaka stops the rampage of a berserk Mazinkaiser by huging the HumongousMecha with her own FemBot... Kouji felt like if a naked Sayaka was hugging him from behind -and he was naked, too-, and then he snapped out of his trance.
** The ShipTease between Kouji and Sayaka got cranked up in ''ShinMazingerZero''. At the first arc they were a couple. In the next timeline/arc, Sayaka blushes when Kouji explains he can't tell why, but he is crying because he has seen she is fine. Sayaka gets jealousy when she sees girls getting too close to Kouji, Minerva states Sayaka is irreplaceable for Kouji...
* ShirtlessScene: Kouji Kabuto pulled this sometimes, specially late in the series (the episode where Erika showed up comes to mind). Dr. Hell also pulled this at the end of ''Anime/{{Mazinkaiser}}'' for seemingly no reason, and despite being a very old man.
* ShootingSuperman: Whenever a human army turns on Mazinger-Z, Great Mazinger or Grendizer, they always shot round after of round of ammo in spite of they should already know conventional weaponry not even scratches them (it was kind of subverted the first time Mazinger-Z was activated in the manga. The army could not know what that HumongousMecha was made of. And in that time, the dome protected Kouji inside the cockpit was still open, so the pilot was still vulnerable. ShootingSuperman in that situation could have worked). Also, when a {{Robeast}} appears, the army insists on attacking them in spite of they should know after the first few times they are wasting ammo, men and money. It was kind of subverted in a Mazinger-Z episode, though: a squad of [[{{Mook}} Iron Masks]] surrounded Aphrodite-A and threw a hail of spears against the FemBot. They very obviously did not damage it, but they managed to slow Sayaka down (they were so many they were very distracting) what was their intention.
* ShortRangeLongRangeWeapon: Mostly it averted the trope. Usually both the Mechanical Beasts equiped with long range weapons (beams, bolts, missile launchers, machine guns) and Mazinger-Z avoided getting close each other often they had to. Some Beasts even made a point of this (Jenova M9 was a robotical snipper. Coming near the enemy would be the last thing it would do). There were exceptions: Sometimes Beasts got over-confident and got close (like Kingdam X10. When Mazinger -apparently- ran out of power and fell face-down, Kingdam dissipated its mirage trick and approached to skewer it wth its sword instead of keeping blasting the robot with lightning bolts. Bad idea). And in the original manga, Kouji prefered fighting with punches and kicks, using his robot's long-range weapons to finish their enemies off.
* ShoulderCannon: Several Mechanical Beasts were equipped with them. Examples were Winder A2 or the ninja siblings Blazas S1 and S2. Their shoulders were fitted with missile launchers.
* ShoutOut: See page for examples.
* ShowSomeLeg: The 4th ''Anime/{{Mazinkaiser}}'' OVA, as mentioned.
* SiblingRivalry: Kouji and [[spoiler:Tetsuya Tsurugi]] were a pretty tragic example. [[spoiler:Tetsuya]] was [[spoiler:adoptive son of Kenzo Kabuto's, Kouji biological father.]] When [[spoiler:Kenzo]] got reunited with Kouji in ''Anime/GreatMazinger'', [[spoiler:Tetsuya]] -who had a TON of abandonment and self-confidence issues- thought his father would forget about him now his son by blood was back. He got ''very'' jealous and argued and fought with Kouji about anything and everything, determined to prove to their father that he was the better than Kouji. Unfortunately, his jealousy and his bickering caused [[spoiler:Kenzo's death.]] He suffered a FreakOut cause it.
* SiblingTeam: Kouji and [[spoiler:his adoptive brother, Tetsuya]]. When they are actually fighting their enemy instead of each other, they are virtually unstoppable.
* SillyRabbitIdealismIsForKids: In a story arc of the GosakuOta manga alternate continuity Baron Ashura manages kidnapping Kouji and tries to talking Kouji in joining him (or her. It. Whatever). When Kouji refuses, Ashura goes in a WhatIsEvil rant, stating "justice" and "peace" are only meaningless, empty words invented by people because they are too coward and weak to accept the truth (MightMakesRight according him) and protect themselves, and then he taunts Kouji telling the only thing his idealism has got him are troubles and humilliations.
* ASimplePlan: In episode 46 Dr. Hell's had a pretty simple plan: send two MechaMooks to infiltrate into the Institute and planting several nukes in Mazinger-Z's pool. Everything explodes, he wins. However that simple plan met due to his Kikaijuu and his troops running into abandoned babies, suicidal mothers, and at a point they got involved in a manhunt through a woodland.
* SinisterScythe: Several Mechanical Beasts were armed with scythes: Garada K7 (two scythe blades were mounted on its skull and they could be used like boomerangs or like weapons in hand-to-hand combat), Brutus M3 (one sctyhe replaced its right arm), Karma K5 (it was armed with a more normal-looking)...
* {{Sizeshifter}}: Several Mechanical Beasts had the ability to changing size. The first of them -Bicong O9- showed up as soon as episode 12. Subverted with Double Faizer [[spoiler:Dr. Hell's strategy was deceiving the enemy in believing Faizer was a size-shifter, but in reality they were two Beasts: a large and a tiny one.]]
* SlapSlapKiss: Koji and Sayaka. Sometimes ''literally''.
* SlasherSmile: Dr. Hell did not often smile, but when he did... His enormous Glasgow smile was deeply disturbing.
* SlidingScaleOfAnimeObscurity
* SlidingScaleOfIdealismVersusCynicism: Even though they have plenty instances of dark, cynical moments, Mazinger Z and its sequels fall firmly into the idealistic side. When push came to shove, it was through courage, guts, faith and The Power of Friendship the heroes and heroines managed to prevail.
* SmallNameBigEgo: Boss thinks he is the smartest and biggest {{Badass}} ever, the best biker around and a real ladies man, and people would ''pay'' for the chance to attend his birthday party (not joke. In episode 20 He ''tried'' to have his classmates paying for tickets. And he was shocked when all girls ran away from him screaming). Everyone else knows he is the ButtMonkey. Hence, when Kouji showed up, showing he was a real {{Badass}}, and [[BadassBiker a better biker]] and [[TroubledButCute getting all girls -especially Sayaka- crazy over him right away]], Boss understandably was not happy, and he constantly tried to showing Kouji up with very little success. He went so far to build his own -goofy-looking- HumongousMecha using metal scraps and junk from a rubbish dump, and claimed it would replace Mazinger-Z itself. Tip: It did not.
* SmallReferencePools: This is one of the few HumongousMecha shows general anime fans have heard about, at least. And depending on the country, you can make references to it expecting people will quickly catch on (in Spain it is still the most popular Super Robot show. Mention MazingerZ and nearly everyone will know what you are talking about).
* TheSmurfettePrinciple: Sayaka Yumi was the only female main character (albeit, unlike other Smurfettes, she demanded being taken seriously like her own individual) and the only recurring female character until Misato appeared in the last season. Between the bad guys, Baron Ashura may or may not count like female character. Dr. Hell mostly "hired" males (let's think of it, [[FridgeBrilliance it can be infered from his backstory he had actually come to loathe women]]), but every so often he made {{Robot Girl}}s or female androids [[spoiler:Minerva, Erika, the Gamia triplets, the robots impersonated Hitomi and Kouji and Shiro's mother...)]]
* SniperRifle: Mechanical Beast Jenova M9 was equiped with a -obviously gigantic- sniper rifle. Its ImprobableAimingSkills allowed Jenova taking full advantage of its weapon, using it to try and shoot Kouji off from an AirborneAirCraftCarrier -fortress Ghoul-, one hundred kilometres above ground.
* SnipingTheCockpit: In the Mazinger trilogy aiming for the cockpit (clearly visible in Mazinger-Z and Great Mazinger) is a common tactic constantly employed by GenreSavvy villains... and the army when the Government turns on the heroes (which also is an alarmingly common occurrence). In fact, it happened in the first Mazinger-Z manga chapter (Mazinger went on a rampage due to Kouji thinking FallingIntoTheCockpit was a good idea. Several tanks attacked Mazinger, deliberately aiming for the cockpit). And in a GreatMazinger manga episode, a Warbeast is holding Great Mazinger still as Marquis Janus orders to snipe the cockpit. However, the likewise GenreSavvy HumongousMecha builders had the cockpits specially reinforced to protect the pilot.
* TheSocialDarwinist: Baron Ashura is a type four who uses the "survival of the fitest" like an excuse/justification to make whatever he wants. In a story arc of the GosakuOta manga alternate continuity Baron Ashura manages kidnapping Kouji and tries to talking Kouji in joining him (or her. It. Whatever). When Kouji retorts he has no interest in becoming a criminal, Ashura goes in a WhatIsEvil MightMakesRight angry rant, uttering that in the nature the weak succumbs to the will of the strong and the strong survives. That is how the world always did, does and will work, and "good", "bad", "peace", "justice"... are meaningless, empty words.
* SpeechImpairedAnimal: Bakarasu was a raven ("Bakarasu" roughly means "Dumb crow") Boss and his gang used as a lookout or a messenger. In return, Bakarasu mocked Boss, annoyed him and drove him mad. Bakarasu strangely could talk -and laugh, usually at Boss-, and theoretically it worked alongside Boss, Nuke and Mucha, but in reality it did whatever it pleased. It only had one appearance in ''MazingerZ'' (episode 69), but he showed up in several ''GreatMazinger'' episodes.
* SpellMyNameWithAnS (Notable for managing to largely ''avoid'' this, outside the twin blonde research assistants. Rori, Loli, Lori, Roli? Roru, Lolu, Rolu, Loru, or possibly Roll? ''Nobody'' knows for sure.)
* SpinAttack: A variant. Mazinger Z possess a technique called Daisharin Rocket Punch ("Giant Swing Rocket Punch"). Rather spinning its whole body,the HumongousMecha spins its arms rapidly, building up momentum before firing off both fists in standard RocketPunch fashion.
** Several Mechanical Beasts had spin attacks: Goronko S2 spun around and then rammed the enemy; Spartan K5 whirled its trident very, very rapidly to create a twister capable pick even a HumongousMecha; Balkan P5 expelled air out of ducts all over its legs and spun around to wrap itself into a tornado; Grengus C3 wrapped its enemy in chains and then it spun around, dragging its enemy with it before slamming it in the ground...
* SpotTheImposter: In a episode Dr. Hell fabricated a robot seemed just like Prof. Yumi. However it was quickly identified by Sayaka when she noticed the imposter's nails were black. Dr. Hell used that strategy more times, creating a robot looked right like a secondary character and even going as far as [[spoiler:building a robot resembled TheHero Kouji.]] They also were spotted sooner or later.
** That plot was partially reused in a ''Anime/{{Mazinkaiser}}'' episode. TheDragon Baron Ashura kidnapped Prof. Yumi and disguised like him. Sayaka suspected from him nearly right away, though, because he tossed into a trash bin a birthday gift, and she told her father would never do that.
* StabTheSky: In the ''Mazinger-Z vs Great General of Darkness'' movie Mazinger-Z does this pose with the sword that ''Anime/GreatMazinger'' has [[GiveMeASword given it]] to [[spoiler:impale TheDragon]].
* StacysMom: Misato, Boss' cousin. She is a professional copter pilot in her early twenties and all male teens (including TheHero Kouji) other than her cousin are infatuated with her. She also showed up in one of the manga versions of ''Anime/GreatMazinger'', and Tetsuya also felt attracted to her.
* StarcrossedLovers:
** Shiro and Lorelei. Lorelei was [[spoiler:a RobotGirl built by a scientist wanted to prove he was better than Dr. Kabuto, builder of Mazinger-Z. He built an HumongousMecha -Rhine X1-, and a RobotGirl -Lorelei- was meant to fuse with it to make it work. When her father got a fatal wound, he confessed the truth to her and pleaded her to defeat Mazinger. Determined to fullfil her father's last will, she merged with Rhine and challenged Mazinger to a death match. Kouji was forced to fight and kill her.]] Shiro was devastated after that.
** Minerva-X and Mazinger-Z itself also are an example. Minerva-X was a FemBot designed by Dr. Kabuto especifically to be Mazinger-Z's BattleCouple. Unlike Mazinger, though, she was a robot capable to think and feel emotions like an human being, and she was in love with Mazinger-Z. However, Dr. Kabuto never got around to build it. Unfortunately, Dr. Hell got his hands on the plans and built her to destroy Mazinger-Z. However, Minerva-X got rid from his control and refused fighting Mazinger-Z, so he decided to destroy her. Their condition of StarCrossedLovers not only comes from this but also it comes from Mazinger-Z IS a machine and it can not reciprocate her feelings.
* TheStarscream: Two Dr. Hell's servants fit the trope: Viscount Pygman and Archduke Gorgon. The former disobeyed orders the whole time and finally betrayed his creator, [[AllYourBaseAreBelongToUs taking over the Institute]] on his own and refusing handed over the control of it to Hell (He earns brownie points, though, for being the only Dr. Hell's henchmen showed some spine in front of Gorgon). The later allied himself with Hell but spend the whole time insulting and scorning Hell and his henchmen, undermining his authority and scheming to overthrow Hell at the first chance. [[spoiler:He was sucessful]]. Gorgon subverted the trope slightly since he was not planning replacing Hell with himself but with [[spoiler:[[Anime/GreatMazinger the Emperor of Darkness]].]]
* StartOfDarkness: Hell's mind was already unstable and unsound cause his upbringing. However, when he found out the woman he loved was in love with another man [[spoiler:Juzo Kabuto, future builder of Mazinger-Z and [[TheHero Kouji's]] grandfather]], he... [[LoveMakesYouCrazy flipped out]] and [[LoveMakesYouEvil attempted to murder his perceived rival]]. It then went FromBadToWorse. Shortly after he tried helping someone... and he got the crap beaten out of him for it. Later he was crawling back towards his home, bruised and blood-stained, muttering "Mediocre imbeciles! You don't deserve being alive! One day I'll purge the world off all of you! And then everybody will have kneel before me". When you heard his words and saw his utterly mad stare you realized he had snapped out completely and Dr. Hell had been born.
* TheStationsOfTheCanon: Dr. Hell's surfacing, Dr. Kabuto's death, Kouji finding Mazinger and trying piloting for first time with disastrous results, Sayaka showing up to save him from himself, Baron Ashura attacking the institute, first meeting with Boss... To spice things up, some Fanfic writers try blending or playing out of order several minor events and battles.
* StayInTheKitchen: A good part of the SlapSlapKiss comes from Koji saying this and Sayaka flipping the middle finger at him. Or better said, giving him an ArmorPiercingSlap.
** A classic instance is episode 8, when Kouji voted against a proposal to turn Aphrodite-A into a combat-capable mecha, telling he needed no help. And when Sayaka argued with him he told she was an idiot did not get that girls must not fight.
* StealthSequel: ''Manga/ShinMazingerZero'' seemed an alternate universe or retelling of the original series... until Kouji starts to have visions of events that happened in the original show, including a flashback of [[spoiler:the death of [[FemBot Minerva-X]]]], and it is revealed that ''Shin Mazinger Zero'' is a sequel to the original anime, in the which the characters are locked in a perpetual time loop.
* StockNinjaWeaponry: Blazas S1 and S2 -two Mechanical Beast showed up in episode 46- used shuriken and kunai like weapons.
* StockShoutOuts: This series gave us the Super Alloy Z and the RocketPunch. They pop up frequently, especially the second, which has quickly became THE most famous and most ubiquitous SuperRobot weapon, showing up in all kind of works. Whenever a character [[CallingYourAttacks screams]] "Roketto Panchi!" it is directly referencing the TropeNamer.
** Since [[GermansLoveDavidHasselhoff Spaniards Love Mazinger-Z]], the Spanish DubNameChange variant ("¡Puños Fuera!", meaning "Fists Out!") has become so omnipresent that it has been used in movie titles. And when a foreign work features a RocketPunch, whatever attack name that the character screams is automatically replaced by "¡Puños Fuera!" more often than not.
* StormingTheCastle: Kouji, Sayaka and Boss stormed the Island of Hell, supported by the Japanese army, in the FinalBattle.
* StupidJetpackHitler: Dr. Hell started out as a weapons researcher for the Nazis.
* SufficientlyAdvancedAlien: The enemies of a ''[[ZMazinger spin-off]]'' were aliens so powerful and so technologically advanced they were mistaken by gods in the past.
* SuperSpit: Many Beasts could spit gallons of acid, poison and other corrosive fluids. Sometimes it was a kind of gluey substance to paralyze or hinder the enemy. Examples abound: Mechanical Beasts Baras-K9, Gusios-β3...
* SuperPrototype: averted. Mazinger Z was lacking a lot of its special features at first and regularly had to be upgraded and re-outfitted with new equipment. As it turns out, the ''real'' SuperPrototype is [=MazinKaiser=]...
** Averted throughout the OVA, though. [[spoiler: Shin Great Mazinger]] and Mazinkaiser are explicitly stated to be the finished models, their predecessors are the prototypes.
* SuperRobot: May not have started, but certainly defined and named the genre.
* VideoGame/SuperRobotWars: '''All''' of them. The only ones that may ''technically'' not count are the ones that do or will use the reimaginings: ''{{Mazinkaiser}}'', ''ShinMazinger'', or ''MazinkaiserSKL''. However, ''[[VideoGame/SuperRobotWarsUX UX]]'', in which the latter debuts, marks the first time Kouji himself has not appeared in a ''VideoGame/SuperRobotWars'' game.
** In a number of ''VideoGame/SuperRobotWars'' games you can convince Minerva X to join your team. At least [[VideoGame/SuperRobotWars2 2, 2G]], [[VideoGame/SuperRobotWarsCompact Compact 1]], and [[VideoGame/SuperRobotWarsAdvance Advance]], although in 2 she only joins temporarily and in Advance she 'dies' and you have to assign an actual pilot to the robot.
* SuperVillainLair: Dr. Hell had TWO: the island of Bardos, where he found the Mykene HumongousMecha, and the -properly named- island of Hell, an islet near from Japan where he moved to at the second half of the series. His first base looked like a deserted island, covered with ancient, half-crumbled ruins, but his second fortress seemed less ordinary, featuring a mountain with four gigantic faces carved on the slopes. Nonetheless, both of them included:
** an ElaborateUndergroundBase
** a throne room for Hell
** a war room to argue strategies
** quarters for his {{CoDragons}}
** barracks for his {{Mook}}s
** several hangars for his {{Cool Ship}}s, {{Cool Airship}}s and HumongousMecha
** InsecuritySystem for HumongousMecha was absolutely useless against Mazinger-Z
** transmision equipment to broadcast to every TV set in the world
** Hell's MadScientistLaboratory where he fabricated his weapons, mechas and cyborgs
** several training camps for his {{Robeast}}s and {{Mook}}s
** And in the original manga, his second fortress could transform into a humongous HumongousMecha. And in the GosakuOta episodes, he could launch it off to the space and blow it up (in case his enemies invaded his island and he could not win).
* SurroundedByIdiots: Dr. Hell often feels like this -and rightfully so-. When he was young it was because he thought he was smarter than anybody, but now it is because his minions are, well, stupids. In an episode he invokes the trope almost word by word. His CoDragons have been fighting for the whole episode, even when they were supposed to engage the enemy. At the beginning he had tried to stop them and force them to cooperate, but it did not work. So during their latest fight he is -unsuccesfully- trying to ignore them as he has dinner, and he grumbles he is surrounded by idiots.
** '''Dr. Hell''': Why, oh, why such a genius as myself is surrounded by idiots?
* SympathyForTheDevil: Played with in the GosakuOta manga version. The main characters go over Dr. Kabuto's notes to try to ascertain what are the ''[[Anime/GreatMazinger Mykene Warrior Monsters]]'' and where they come from. After learning [[BeneathTheEarth they were a civilization was forced to live underground during milennia]], Misato feels genuinely sorry about them. Kouji has nothing of it, thought, and he rebukes their sufferings don't give them right to kill innocent people.
* TagalongKid: Shirou.
* TailSlap: Several Mechanical Beasts (such like Danchel or Deltan V8) were endowed with powerful tails, capable to hit or coil around the enemy and strangle it. Often they had some weapon attached or shot missiles, acid or poison.
* TakeOverTheWorld: According his Backstory revealed in one of the manga versions, Dr. Hell was abused and belittled by everyone when he was a child until his mind snapped and he decided he wanted to make all pay: he would purge the world off idiots and force everybody to bow down to him. During the rise of Hitler, he realized if he took over the world he COULD do just that. Over ten years after the World War II he finally found the means [[LostTechnology as he researched several ancient ruins]].
* TapOnTheHead: Boss used the "low blow to the solar plexus" variant with [[spoiler:Kouji]] to try to avoid he [[spoiler:fought against the Mykene Warrior Monsters in the last episode.]] Maybe it was used in a more realistic way than usual, though, since when [[spoiler:Kouji]] regained consciousness shortly after, he seemed being in pain.
* ATasteOfPower: In the first dozen episodes, the [[{{Robeast}} Mechanical Beasts]] can barely even scratch Mazinger-Z, let alone threaten it. They were too weak, their weapons not powerful enough, and the battles wer over as soon as Kouji managed to connect several consecutive attacks. The only reason that Kouji struggled during that time was [[FallingIntoTheCockpit he was still trying to learn how piloting Mazinger]]. When Spartan K5 -a {{Gladiator}}-like Beast single-handily beat the crap out of Mazinger as easily as it was shrugging all its weapons off- showed up in episode 14, it was a wake-up call of playtime was over and BigBad Dr. Hell was at last stepping up his challenge.
* TheTeamNormal: Boss and his gang. They had no special abilites and they were not the offspring of some scientist, and as the heroes had cool {{Humongous Mecha}}s MadeOfIndestructium and loaded with dozens of awesome weapons (RocketPunch, ChestBlaster, EyeBeam, TorpedoTits, BFS, ArmedLegs...) [[MidSeasonUpgrade got periodical upgrades]], they controlled a HumongousMecha made with garbage, had no weapons, was quite fragile and was easily ri[ped apart in every fight.
* TechnicianVersusPerformer: Koji and Tetsuya have distinct ways to pilot their respective HumongousMecha. Kouji is the Technician, who uses his weapons in a normal way -such as Mazinger's Photon-powered EyeBeam as a long range weapon-, combining them with pure brute force and CombatPragmatism. Tetsuya is the performer who combines his own CombatPragmatism by using Great's wide arsenal of weapons in an unorthodox way -such as shooting Thunder Break with both weapons or using it to turning his swords into Lightning rods, his surprisingly weird way of handling swords, or covering Great with [[ChestBlaster Breast Burn]] heat energy (a movement which later would be adapted in ''VideoGame/SuperRobotWarsAlpha'' and turned into ''{{Mazinkaiser}}s'' Kaiser Nova).
* TechnicolorNinjas: [[http://garada.net/mediashare/o5-6e3kjgy0boqeow3l7uukwa5i2kl1s0-pre.jpg Blazas S1 and S2]] were garishly-colored; still they were able to infiltrating into the Institute and planting bombs without being seen or heard.
* TechnoBabble: Plenty instances of it, how you would expect from a HumongousMecha Mechashow:
** Early on in the series it is explained that [[AppliedPhlebotinum Photon Atomic (Koushiryoku) power]] is obtained in the process to transform [[{{Unobtainium}} Japanium]] in Alloy Z.
** In the manga version of the battle versus Jinray S1, [[TheProfessor Professor Yumi]] explains Jinray's electrical discharges generate an electro-magnetic field around Mazinger that disrupts the power feeding Mazinger and breaks down the Pilder's controls. He also warns that, should the electrical tension increase too much, Mazinger's mechanisms would melt.
** In the episode in which Minerva-X appeared, Professor Yumi theorized that she was made of super-steel.
** ''ShinMazingerZero'':
*** ''Mazinger'' is acronym for Multidimensional Automaton Zillion Infinity Neural Generative Exterminate Reverter
*** And in chapter 6:
-->'''Sayaka:''' Aphrodite A Immediate activation! number 1. Number 2. Number 3. Check! All Green! Retention bolt, begin release!
* TelescopingRobot: Mazinger-Z has two extendable, razor-sharp cutters (properly named Iron Cutters) embedded into its forearms, several drilling missiles stuck into its upper arms, and its belly has a hatch to launch MORE missiles from. And then you have his MidSeasonUpgrade JetPack, Scrander Jet, which can shoot shurikens. ''Manga/NewMazinger'' (an one-shot story set on an alternative universe) went deeper in this trope, and in one scene, many hatches opened up all over its body, revealing dozens of missiles underneath.
* TenMinuteRetirement: In episode seven several mobs had expressed their displeasure at HumongousMecha stomping on their houses and them by harassing and assailing the heroes. [[TheProfessor Prof. Yumi]] had been hurt when a mob had thrown stones at him, Sayaka was so upset at her father hurt and protesters yelling at the gates of the HomeBase she was thinking of quitting, and Kouji also decided just doing it after a big fight with her. Their retirement lasted until another [[{{Robeast}} Mechanical Beast]] attacked.
* ThatsNoMoon: A nearly literal example. Salude, Baron Ashura's submarine fortress was simultaneously a CoolShip and an IslandBase camouflaged itself like a real island (it had two parts: the lower part was a submarine HomeBase and the upper part was an artificial island. Both parts were interconected via a tube. When Salude surfaced, only the upper part was visible). The first time Kouji saw it, he exclaimed: "That is not a island!"
* ThematicRoguesGallery: Dr. Hell's Mechanical Beasts.
* TheoryOfNarrativeCausality: Lampshaded sometimes. In one story Boss reassures his friends -Nuke and Mucha-, as facing a dire situation, telling that they will not die because they are the PluckyComicRelief characters, and joke characters never die.
* ThirdPersonPerson: Dr. Hell occasionally refers to himself in third person when he is ranting, angry or uttering {{BadassBoast}}s. GoNagai's ''GreatMazinger'' manga offers a good example:
-->'''Dr.Hell''': "Destroy me? How arrogant. A tiny island country intends to destroy Dr. Hell, the future ruler of the world? Alright! I swear I shall crush Japan in merely ten days! And the whole world shall witness the true power of Dr. Hell!"
* ThisIsADrill: Several robotical foes (such like Danchel and Stronger T4) were endowed with weaponized drills. As well, one of the weapons of Mazinger Z are drilling missiles located in its upper arms.
* ThisIsUnforgivable: Whenever Kouji said this sentence you knew he was REAL angry, and someone was going to be summarily trashed in the near future. A good example was in the manga, after he learnt Dr. Hell had created a weapon was able to nullify gravity... and had used one whole city like subject test. Another two memorable instances happened in the ''{{Mazinkaiser}}'' movie (Mazinkaiser vs Great General of Darkness: at the beginning, after Lori and Loru's [[spoiler:HeroicSacrifice]], and at the end, right before he [[spoiler:absolutely destroys the Mykene empire army]]:
--> '''Kouji:''' Because you... Many people has died... THAT IS UNFORGIVABLE! [[http://www.youtube.com/watch?v=qiZwGqhTP5I]]
** This sentence was also used fairly often by Baron Ashura (to Kouji and his friends after being defeated) and Dr. Hell (to Ashura after his servant botched still another operation).
* ThoseTwoGuys: Nuke and Mucha, best friends and tag-alongs of Boss long before the start of the series. Before meeting and befriending Kouji they were two average, ordinary high-school students, but after meeting him their daily life includes battles between {{Humongous Mecha}}s, fighting or fleeing from armies of {{Mook}}s, sneaking into enemy secret bases and basically surviving. Often they get -unwillingly- dragged -by Boss- in Kouji's adventures, and they provide with the rational counterpoint -and lampshading- to any stupid stunt Boss has come up with. Later in the series Boss got himself a Made Of Junk HumongousMecha and required that they helped him to pilot it -much to their chagrin-. In ''Anime/GreatMazinger'' their situation did not get more normal, that with the monsters from BeneathTheEarth invading the surface world bit and Boss demanding they help him to fight them like part of an absolutely helpless plan to woo {{Tsundere}} Jun Hono -LoveInterest of TheHero Tetsuya, whom Boss can not stand-. In other series (''Anime/{{Mazinkaiser}}'', ''Anime/ShinMazinger'', ''ShinMazingerZero'') of the ''{{Mazinger}}'' franchise they are given the same role.
* TheThreeFacesOfAdam: Shiro (a kid who whises growing up like his brother and is constantly trying learning and experimenting with new stuff) is the hunter, TheHero Kouji is naturally the lord and Prof. Yumi (who is TheProfessor and the mentor of and ParentalSubstitute of Kouji)is the prophet.
** And if you look to the three male leads of the trilogy, Duke (the older, more mature and more world-worn) is the prophet, Tetsuya (the most skilful and grimmest of them) is the lord and Kouji is the hunter.
* TheThreeFacesOfEve:
** Jealous, temperamental, nagging, tantrum-prone Sayaka Yumi is the child
** Mature, calm, collected, professional Misato is the wife
** And beautiful, sensual and alluring Erika is the seductress (who, actually, tempted TheHero)
* TheUnfought: The Emperor of Darkness was BiggerBad from ''Anime/MazingerZ'' and BigBad from ''Anime/GreatMazinger''. The second series ended up with the heroes [[spoiler:killing his CoDragons and annihilating a large part of his army,]] but they never fought him. Outside of an episode of one of the manga versions of ''Anime/UFORoboGrendizer'' and the ''Videogame/SuperRobotWarsAlpha'' he has never been fought (and in ''Anime/{{Mazinkaiser}}'' he is not even mentioned).
* ThouShallNotKill: Played with. Kouji gets forced to kill an [[{{Mook}} Iron]] [[{{Cyborg}} Mask]] in one of the first chapters of the original manga and he freaks out about it. Later he is wondering, worried, if he is a murderer now. A secondary character reminds him he just was defending himself.
* ThoseWackyNazis: Count Brocken and his {{Mooks}}.
* ToTheBatpole: Mazinger-Z emerges from a hangar beneath a nearby swimming pool
* Creator/ToeiAnimation: It made the 1972 anime and its sequels.
* TokyoIsTheCenterOfTheUniverse: Subverted. For start with, the Headquarters of the good guys are not in Tokyo but in the vicinity of Mount Fuji. Therefore, the enemy feels not compelled to exclusively target and attack Tokyo. A lot of Japanese cities are destroyed, ships are sunk in ocean, and often Mazinger-Z needed fighting in open sea (and in one chapter of one of the manga alternate continuities, it got deployed in another country). And in the Mazinger Z versus Great General of Darkness movie, the Mykene army struck New York, Paris, London and Moscow before striking Tokyo.
* TomatoInTheMirror: Erika was an amnesiac girl that barely remembered her name. She felt an odd, devastating inner emptiness, but in spite of it she thought she was a normal girl. And then [[spoiler:Baron Ashura appeared and revealed that in reality she was a human-looking robot built to murder Kouji Kabuto.]] She freaked out considerably -and understandably-, and she refused believing it.
** Lorelei thought she was an average, little girl with a slightly eccentric and weird father. And then she found out that [[spoiler:she was in reality a RobotGirl, and the key component to start a HumongousMecha.]]
* TonightSomeoneDies: Famously subverted in the episode titled ''Kouji Kabuto Dies In Lava!''. Kouji [[spoiler:did not die.]]
* TooDumbToLive: Several characters of the series (including the main characters) get at least one occasion where they seem determined to off themselves.
** The civilians thought it was a good idea remaining near from the place where a HumongousMecha and a {{Robeast}} were fighting, or blamed the heroes for the destruction and deaths Hell and his lackeys were responsible of, or pressed the Government to yield EVERY TIME Dr. Hell was blackmailing it are good examples.
** A good, specific example is Yuri, BrattyHalfPint Sayaka's cousin: Let's go over the facts, Yuri. You are a disabled, little IllGirl can't run or move quickly because you need a wheelchair. You know there is a giant robot in the city, rolling over buildings AND people. Kouji has gone out to stop it after telling you very clearly you must stay in home because you are safer. Still do you insist on leaving the home and go to where the giant robots are fighting because you have a crush on Kouji and you want to see him? Okay, you can leave. After all, what can possibly go wrong?
* TorpedoTits: Aphrodite A's "Oppai Missiles".
* TransformationNameAnnouncement: Kouji always yelled "Majin Go!" when he docked the Pilder in and started Mazinger.
* TransformingMecha: In ''ShinMazinger'', Mazinger Z is able to transform into a ''giant fist''.
* TrickedOutShoes: In episode 18, Mazinger-Z's feet got modified to include rockets allowed the HumongousMecha move underwater.
* TropeCodifier / GenrePopularizer: When people talk about any SuperRobot, this is what they inevitably measure it against.
** TropeMaker: [[{{Gigantor}} Tetsujin #28]] may have been the UrExample, but there were very few imitators after ''Mazinger'' rolls around. All the SuperRobot standbys are from this show: a HotBlooded IdiotHero, the [[RocketPunch ROCKETTO PAUNCH]], CallingYourAttacks in {{Engrish}}, EyeBeams, a ChestBlaster, and many more.
** In fact you can see that a few tropes that are not limited to standard SuperRobot fare were codified or even made if you look at the show close enough, such as Tsundere as seen below.
** Hell ShounenJump heroes probably wouldn't be so HotBlooded nor would they be [[CallingYourAttacks calling their attacks]] if it wasn't for this show.
** At the same time however some of the tropes were played with, averted, subverted, or outright deconstructed as the UnbuiltTrope entry explains.
* {{Troperiffic}}: If there's a SuperRobot trope, it's in here or in its sequels. If there's a RealRobot trope, it's probably in here too. And you can expect them all to be turned UpToEleven. And everything associated with HotBlood is in these series. But what else do you expect from THE SuperRobot show.
* {{Tsundere}}: Sayaka, [[TropeCodifier one of the first anime ''lead'' girls to have these qualities]]. Her type varies: she's a Type A in the original TV series, but switches to Type B in the manga and in ''Mazinkaiser''.
** She seems to have gone back to Type A in the ''ShinMazingerZero'' manga, but when [[ClingyJealousGirl she sees Minerva X and Kouji together]]...
* {{TwoFaced}}: Baron Ashura.
* UglyGuyHotWife: In episode 89 we meet [[spoiler:an impersonator of]] Kouji and Shiro's mother. In episode 92 we meet Kouji and Shiro's [[spoiler:supposedly]] late father. His wife was definitely beautiful. He... not so much. Although maybe he was more handsome when he was younger [[spoiler:and he was not a cyborg.]]
* UnbrokenVigil: Sayaka to Kouji in episode 52, as he was hospitalized after being badly wounded in a battle (she was also feeling guilty, since they had got a fight before -they bicker constantly, but this time it was ''serious''- and she had refused backing in battle). And Kouji to his little brother Shiro in ''Mazinger-Z versus Great General of Darkness'' when he fell into coma after a ceiling crumbled onto him.
* UnbuiltTrope: ''MazingerZ'', while not quite the UrExample, is definitely the TropeCodifier for the SuperRobot genre. However, to a modern reader, it seems to constantly slip between an over-the-top parody, and a brutal deconstruction. The BigBad is smart enough to send the [[{{Robeast}} "Mechanical Beasts"]] in groups to attack Mazinger; the mecha, though nearly indestructible, doesn't provide much safety for the pilot inside; and the main character nearly destroys the town while he's trying to figure out how to pilot the mecha. And that's before [[WhamEpisode the villains take over a Japanese village in a very Nazi-like manner, including a systematic slaughter of the civilians that they considered "useless" and usage of the women of the village as human shields for their latest Mechanical Beast]].
* UncannyValleyGirl: In ''ShinMazingerZero'' three beautiful, tall, ponytailed, blonde triplet girls called Gamia Q1, Q2 and Q3 transferred to Kouji's high school. Given that they were gorgeous and friendly, even if they behaved in a strange fashion and looked a tad weird, all boys in class started to quickly slobber at them. In reality they were three androids (appeared for first time in the ''Anime/MazingerZ'' original manga and ''Anime/{{Mazinkaiser}}'') sent to assassin Kouji Kabuto. Seemingly Kouji bought their masquerade, but shortly after he suggested them dropping their act, and he revealed that he had suspected it all along.
* UnderwearOfPower: Both, Kouji and its robot wears (although in the Mazinger's case, it is metallic). {{Fem Bot}}s -Aphrodite, Diana, Minerva- also wear it.
* UnexplainedRecovery: At the second-to-last episode, [[spoiler:the CoolAirship where Dr. Hell was escaping got blown up.]] Whatever got left from him after that explosion surely sank in the ocean. Nonetheless he showed up again in the last season of ''Anime/GreatMazinger'', his body grafted into a HumongousMecha. One eyepatch covering his left eye was the only mark of the ordeal he had endured. Little explanation was given other than an statement of BigBad and PhysicalGod Emperor of Darkness had relived him and turned into one of his Warrior Monsters (and high commander of his army). It can may be worth mentioning many Mazinger-Z characters returned in the last episodes from the sequel, so maybe ExecutiveMeddling was involved.
* TheUnfavorite: [[spoiler:Kenzo Kabuto]] had two biological sons [[spoiler:Kouji and Shiro]] and two adoptive children (''[[Anime/GreatMazinger Tetsuya and Jun]]''). Although Tetsuya was clearly his favorite, he still showed he cared for his two blood sons. However, he got Jun completely neglected, treating her like a soldier, not making anything about her feelings of abandoment and her inner tensions, and he seldom shown he cared for her. It went so far that, before [[spoiler:[[KilledOffForReal dying]]]] after his [[spoiler:HeroicSacrifice]] he pleaded [[spoiler:Kouji]] that he treated Tetsuya like his brother and took care of [[spoiler:Shiro]]... but he did not mention Jun at all. Nonetheless, his attitude drove Jun to think she could not be dependant on someone else and to develop a very strong-willed and self-reliant personality.
* UnfinishedUntestedUsedAnyway: During a battle Kouji decided using the Jet Scrander in spite of it had not been tested yet. To be fair, it was a "If I do not use it I'll die anyways" kind of situation, and he could not wait.
* UngratefulBastard: People constantly blamed Mazinger and the Photon Intitute for the destruction the battles between the Mechanical Beasts and Mazinger cause, [[TooDumbToLive apparently forgetting]] if Mazinger Z didn't exist, all of them would be dead.
** To be fair, a fight between HumongousMecha can cause a great deal of collateral damage, no matter which side either participant was on as seen under DestructiveSavior. Other continuities sometimes do show people getting killed in the crossfire, so some of their anger may be justified. Mind it doesn't excuse the fact that Kouji and his allies get crap for trying to help, just explain why.
* UnintentionalPeriodPiece: The series is clearly set in TheSeventies given the hairstyles, clothes and technology.
* {{Unobtainium}}: Japanium. It is a rare mineral can only be found on a lode on Mount Fuji and was discovered by Proffesor Kabuto. Mazinger Z, Aphrodite A [[spoiler:and Great Mazinger]] are built with it [[spoiler: and the [[{{Robeast}}s Kikaiju]] after Dr. Hell stole a sample]]
* UnresolvedSexualTension: Kouji and Sayaka were the couple that [[TropeCodifier defined]] BelligerentSexualTension. In spite of being attracted to each other, fierce competitiveness and pride issues on both sides prevented them from reaching an understanding and being together. It was not so bad in the original manga, though. And in another manga version, they kissed when they thought Kouji was going to die. He survived, but Kouji avoided Sayaka for a while because he was still too afraid and unsecure.
* UnscientificScience: During the FinalBattle in the GosakuOta manga chapters, Mazinger-Z was thrown in a LavaPit... and it emerged unscathed. When Dr. Hell blurted out it was impossible (not even MadeOfIndestructium Mazinger-Z can endure a lava bath, let alone Made Of Flesh Kouji Kabuto), Kouji replied he had used the rockets located on Mazinger's feet to stir the lava and create an air bubble around his robot... which actually is harder to buy than the "It's NighInvulnerable and it emerged out very quickly" excuse.
* UnusualEyebrows: Kouji sports a pair of the Fiery kind.
* UnusualWeaponMounting: Another [[TropeCodifier trope codified]] for SuperRobots by Mazinger-Z. [[EyeBeams Its optical sensors shot laser beams]], its grill-covered mouth launched gusts of corrosive wind, its horns shot a FreezeRay, [[ChestBlaster its chest shot heat waves]], its fingers and belly shot missiles...
** And then you have Aphrodite-A introducing TorpedoTits into HumongousMecha shows...
** Dr. Hell was infamous by fitting any sort of weapons on any place of the body of his [[{{Robeast}} Mechanical Beasts]]. Examples include Zaila (whose fingers fired missiles and whose horns were really drills), Brighton-J2 (those horns on its head? They are missiles), the ninja siblings Blazas S1 and S2 (missile launchers located on their shoulders and stomache), Solaris-S1 (its belt shoots a solar beam), Kajimofu-T7 (its palms shot beams and it had a missile launcher above its head), Gumbina-M5 (CombatTentacles instead of eyes)...
* UnwillingRoboticisation: All CoDragons -but Gorgon- and {{Mook}}s are {{Cyborg}}s created by Dr. Hell. He never gave someone choice in the matter or asked them if they want being turned into half-mechanical beings (and since [[spoiler:Baron Ashura and his {{Mook}}s]] were corpses he revived by using cybernetic implants they could not refuse either). And in the case of Count Brocken, in one of the manga versions he states bitterly he was grateful to Hell because he saved his life... but he never wished serving him.
* UseYourHead: Kouji -who is a full-blown CombatPragmatist- has no qualms uisng that tactic when he is fighting with Mazinger-Z. It should be justified, since he is using his {{Humongous Mecha}}'s head to ram the enemy instead of his own, but it is not, because Mazinger-Z's cockpit sits on the head of the giant robot.
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