History NightmareFuel / OnePunchMan

* The titular ArcVillain Garou is introduced. You would think it's just another thug who thinks high of himself... Until he beats three A-Class heroes and ''hundreds'' of criminals during meeting to make an allience between them and Hero Assocation to defeat many monsters out there. It's not just another monster, it's ''a human'' who considers himself as ''a monster''. Garou quickly becomes KnightofCerebus in the series, who already had it's darker moments. The horrified HA executive [[https://services.f-ck.me/v1/image/aHR0cHM6Ly9jZG4uZGlzY29yZGFwcC5jb20vYXR0YWNobWVudHMlMkY5MTcyMzEwMzg0NDEzMjg3MDAlMkY5MTcyNTg1MDgxMjEwMzg4OTglMkZwXzMyLnBuZw== Stich's face says it all.
* Later "Hero Hunter'' proceeds to defeat many heroes on his way, including many members of Tank-Top Army and their Master himself and a fan-favorite Mumen Rider. The fight between them involes few [[https://m.media-amazon.com/images/M/MV5BMjg3MmI2ZTMtNTE1NC00MzdjLTg2OTEtZDEwMzJiOGUxYWE3XkEyXkFqcGdeQXVyNjAwNDUxODI@._V1_.jpg Garou]] [[https://services.f-ck.me/v1/image/aHR0cHM6Ly9jZG4uZGlzY29yZGFwcC5jb20vYXR0YWNobWVudHMlMkY5MTcyMzEwMzYyNTE5MzA2NTclMkY5MTcyNTkzMzc2Mjg1NDkxMzAlMkZwXzQucG5n creepy]] [[https://services.f-ck.me/v1/image/aHR0cHM6Ly9jZG4uZGlzY29yZGFwcC5jb20vYXR0YWNobWVudHMlMkY5MTcyMzEwMjc1Njk3MDA5MTQlMkY5MTcyNjM4NzM3NTE1NDc5NDQlMkYwMTMucG5n stares]]. Tank-Top Master himself questions whether Garou is really [[AmbigiouslyHuman a human]] or a monster as he self-proclaims.

* Gouketsu.

[[folder:Monster Raid Arc]]

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** Then there's [[AttackOfTheFiftyFootWhatever BeefCake]], whose size puts even [[Manga/AttackOnTitan Colossal Titan]] to shame[[note]]Beefcake is speculated to be around 270m tall or 885ft, dwarfing Colossal Titan who's at 60m tall or 196ft[[/note]]. His single step alone covers kilometers long, and skyscrapers are nothing to him. His handwaves can wipe city blocks clean, and that's just the wind alone.

* Saitama's DreamSequence will be a nightmare to everyone else. Imagine, a species of subterraneans capable of killing 70% of the surface population in such a short time, and they can even harm [[InvincibleHero Saitama]] to a degree. The only thing that excites Saitama is also the thing that capable of bringing extinction to humanity. Fortunately, it's just that, a dream.

** Then there's [[AttackOfTheFiftyFootWhatever BeefCake]], whose size puts even [[Manga/AttackOnTitan Colossal Titan]] to shame[[note]]Beefcake is speculated to be around 270m tall or 885ft, dwarfing Colossal Titan who's at 60m tall or 196ft.[[/note]]. His single step alone covers kilometers long, and skyscrapers are nothing to him. His handwaves can wipe city blocks clean, and that's just the wind alone.

*** Saitama's DestructiveHero tendency. Sure, he defeats Beefcake in one punch, but since Beefcake isn't completely obliterated, his body falls down and destroys City B. As if the destruction caused by Beefcake prior to his death isn't enough......

[[folder:Supreme Hero Arc]]

* ''The nature of Saitama's powers is that his strength never stops growing''. '''''Ever'''''. He can't stop that growth or weaken his strength, only speed up or slow down said upwards growth. Said speed is dependent on the intensity of his emotions. And as his strength grows, the more apathetic he becomes. Just, the whole implications of it. ''The same things that makes Saitama human is what makes him lose his humanity even faster''.

* God, ''Tatsumaki'' - just imagine being in Fubuki's situation: you're stuck under an overly controlling abuser that doesn't care about your feelings and always puts you down, other kids alienate you because of your powers and your sister wouldn't hesitate assault other people, which ''alienates you even further'' leaving only your abuser as your only company. That same abuser wouldn't even hesitate to ''hurt'' you, a younger sibling, because you "pushed" them too far, and there isn't anything you, or any other person earth can save you from that abuser because she's literally ''one of the most powerful people in the world''. No wonder Fubuki tries to cope with this feeling of overwhelming helplessness through recruiting other people under her and make her feel strong and ''important''.

* Despite claiming to have more morals than the corrupt Hero Association. Some of Neo Heroes' Neo Leaders are criminals who supposedly reformed by joining them, but it is clearly rather doubtful:

** Ryumon and his gang are now allowed to carry weapons with Ryumon in particular being happy to carry a gun which is especially worrying considering they number at '''400''' and the fact they say that they will improve society with ''violence''.
* According to Koko's StatOVision Destro and Erimin have modified over 90 percent of their bodies which is not helped by their similarities to the Organization members.
* The implication that Neo Heroes are just {{Unwitting Pawn}}s of Metal Knight or possibly the Organization is truly worrying due to nearly all of their members wearing suits that make them as strong as A-Class heroes.
* To remind the audience that Demon-Level and higher monsters are truly a dangerous threat, Zaedats' and his battle suit get crushed and Infelsinave has a hole in his torso after fighting against such monsters. Not to mention the several other Neo Heroes who are also at death's door once they faced a monster their battle suits could not penetrate and which could break through their defense.

* In spite of the destruction of the Monster Association, the appearances of monsters not only continue, but are still ''increasing''. Not helping the matter is the fact that not only did the increase happen during Neo Heroes' debut, but Child Emperor's research shows that the monsters the new organization fought against were enhanced to make them stronger and were controlled with chips in their brain with the implication they are only there to make Neo Heroes look good.
* Neo Heroes are regularly murdered or horrifically maimed by the monsters they fight unlike the Hero Association guys who run on ClapYourHandsIfYouBelieve CameBackStrong power boosts. The reason being that the Neo Heroes are often just ordinary civilians told they can can make a difference with, and be protected by, the power suits. This is an outright lie so that the Neo Heroes can have more mindless cybernetic slaves for their growing army. For what purpose? Who knows, but given that a lot of their leadership is power hungry executives and sadist criminals, it's probably not for anything good.

* God, ''Tatsumaki'' - just imagine being in Fubuki's situation: you're stuck under and overly controlling abuser that doesn't care about your feelings and always puts you down, other kids alienate you because of your powers and your sister wouldn't hesitate assault other people, which ''alienates you even further'' leaving only your abuser as your only company. That same abuser wouldn't even hesitate to ''hurt'' you, a younger sibling, because you "pushed" them too far, and there isn't anything you, or any other person earth can save you from that abuser because she's literally ''one of the most powerful people in the world''. No wonder Fubuki tries to cope with this feeling of overwhelming helplessness through recruiting other people under her and make her feel strong and ''important''.

* It seems Saitama or Boros are related to "God" and is manipulating things behind the scenes. After Boros punched Saitama into the moon, giant concentric circles were formed by the crater impact. At one point as Tatsumaki fought Psykos, a vision of the moon as a giant eye glared down on her and caused her to spew blood from the mouth and eyes, breaking her concentration. Whatever "God" is, it is extraordinarily powerful, it can give people great power for a simple wish, it can see everything through the moon (perhaps even being the moon or [[SealedEvilInACan sealed inside of it]]), and it can drain and heavily damage the top level psychic known to humanity with just a "glance". Worse, it tried to give Flashy Flash, Saitama, and the monster they were with a proportion of its power through a extremely dense metal cube it controls. Blast then shows up and disposes of the cube before anyone can process what the cube is offering. We see Blast with another such cube almost 2 decades in the past in the facility Tatsumaki was kept in. This implies that the reason the top level hero of Earth is always absent from fighting normal monsters is because he's been undermining a god level threat for at least 2 decades. Despite that, the monster problem has only gotten '''worse''' meaning Blast seems to losing this fight.

** The Deep Sea King's appearance and design don't help either, specifically some of the faces he pulls (such as [[http://pop-critica.com/wp-content/uploads/2015/11/one-punch-man-s1-ep8-the-deep-sea-king-feat.png this]] one), his pale flesh giving his humanoid "dehydrated" appearance an UncannyValley look to it. His hydrated state is even worse, his face taking on a more shark-like look that seems to peel back his lips to reveal MoreTeethThanTheOsmondFamily, and the faces he [[https://i.redditmedia.com/lwP5AhewZXHoySvKVdZAyxMTGXYo-XTSNtTc7tF1WwM.jpg?w=749&s=91048535304fea029c56d71b5a46c30a makes]] then are outright [[http://pm1.narvii.com/5956/5246eaa46efe1e3d2d4fe4919662341c738d03e5_hq.jpg horrific]].

* [[http://www.mangainn.me/manga/chapter/94401_onepunch-man_chapter_08/page_19 Found you]]...

* [[http://www.mangago.me/read-manga/onepunch_man/mh/c014/21/ Sonic's grin...]]

** Tatsumaki's [[Jerkass Jerkass]] personality may hit too close for those who expirence severe bullying and physical abuse, and some may find her insufferable because of that.

* After the invasion is over, [[Jerkass Tatsumaki]] starts verbally abusing Saitama for rushing ahead into the spaceship and not respecting his lowly station as a Class-B hero, but most importantly calling him a [[KicktheDog "baldy"]] over and over again. Saitama then instructs Genos to tell her off. Genos tells her to shut up or he'll crush her. Tatsumaki [[KicktheDog slams him into debris]], heckles him, literally threatens to KILL Saitama, forcing Bang to [[WhatTheHellHero stop her and scold her for her abuse]]. If it weren't for Bang, Tatsumaki would've literally killed them and crossed the [[MoralEventHorizon Moral Event Horizon]].

* Psykos's vision. She tried to look into the future and as a result saw something extremely bad. What exactly? No one knows yet but [[TakeOurWordForIt it was apparently so bad]] that she lost faith in humanity and decided [[TakeOverTheWorld that ruling over them]] wasn't worth it and that the only option left was to KillThemAll. When Fubuki asks her about it, she say she doesn't remember but the way she trembled with fear while she answered might be telling otherwise. On top of that, there is the possibility that what she saw was actually Shibabawa's vision.

** The fact that Saitama can go insane or is ''currently'' going insane with his level of powers, if it weren't for Genos keeping him grounded. No wonder he's so disconnected from humanity - ''he's no longer human, but the closest thing they have to a PhysicalGod, if he isn't already''.

* ''The nature of Saitama's powers is that his strength never stops growing''. '''''Ever'''''.

* ''the nature of Saitama's powers is that his strength never stops growing''. '' '''Ever''' ''.

* Garou with his "hero hunt". He is so strong that nearly all the S-Class heroes and others are unable to stop him. Especially in the end where he [[OneWingedAngel transformed into a monster]] and curb stomps even Tatsumaki. Fortunately he was given a [[BreakingSpeech lecture by Saitama]].

* The fused Psykos and Orochi telekinetically lift a chunk of the Earth so massive that it's visible from space, including lifting a large chunk of the ocean.

* After being eaten by Gums, Fuhrer ugly rips his way out, only now his body is partially melted and covered in stomach acid. As "Barf Fuhrer Ugly", he melts Superalloy Blackluster's fists to the bone with a touch and kills the entirety of the Swordsman Council (minus Atomic Samurai). Two don't even get a chance to react and are melted instantly.