Hero or Villain, idiots get their Laser-Guided Karma sooner or later.
- Bakugo losing to Midoriya in the Battle Trial Arc. After he had been treating him like trash for years and was extremely smug in his abilities, it's extremely satisfying to see Bakugo's smug grin completely vanish when Midoriya finally gets a win against him. This even jumpstarts Bakugo's Character Development down the road.
- Seeing as how much of an annoying, whiny, Psychopathic Manchild Tomura Shigaraki was at the beginning of the series, it's rather satisfying to see him have a mental breakdown over All Might defeating his Nomu in the USJ Arc and then get shot by Snipe multiple times before being teleported away by Kurogiri. His rage over Stain managing to steal the spotlight from him in the Hero Killer Arc can also qualify. Both incidents even start his Character Development into a more mature and calculating leader.
- A small one, but after he's been nothing but creepy and perverted to all the girls in Class 1-A, seeing Mineta get poked in the eye by Jiro's Quirk after trying to peep on the girls is immensely satisfying.
- Midoriya punching Bakugo during the Final Exams Arc. Up until that point, Bakugo had been an obnoxious jerk with full intention of failing both himself and Midoriya merely because he refuses to accept his rival's help. The punch not only saves Bakugo from All Might, but knocks some sense into him.
- Midoriya using 1,000,000% Delaware Detroit Smash to defeat Muscular is particularly satisfying as the villain proved himself to be utterly despicable by gleefully admitting to murdering Kota's parents and then attempting to kill him just for fun. Not only does this save Kota, but it also ends his hatred for heroes.
- All Might smashing All For One into a pulp is easily one of the most pleasing moments, considering how the Symbol of Evil quickly established himself as one of the most reprehensible characters in the series.
- Mirio pounding the living shit out of Overhaul, even after losing his Quirk. There's also much catharsis in seeing 100% Full Cowl Midoriya, aided by Eri, beating the shit out of Overhaul soon after. Not long afterward, Shigaraki attacks the convoy transporting Overhaul where Mr. Compress severs one of his arms. This is followed by Shigaraki using his Quirk to amputate Overhaul's other arm, thereby preventing him from using his Quirk. Shigaraki then taunts Overhaul, relishing how he now has the upper hand over him and lets him live as a crippled and broken man. It's a rather satisfying dose of Laser-Guided Karma for one of the more monstrous villains in the series.
- Although he was trying to become a better person, it's still satisfying to see Endeavor get a merciless beatdown by Hood and receive a nasty scar on the left side of his face, similar to the one he indirectly inflicted on Shoto. The latter even makes a snarky remark about it. And to top it off, he gets a scathing Calling the Old Man Out from Natsuo, another one of his children, about his awful behavior, even if he is trying to become a better person.
- Although it was probably unintentional, some fans were still glad to see a young Tenko Shimura (or Tomura Shigaraki) finally snap and use his newly developed Quirk to kill his abusive father, even if he did feel remorse for how terribly he treated Tenko. However, this is somewhat undercut by the fact that he had accidentally murdered the rest of his family prior to this.
- While it could almost be seen as pitiable for some, Overhaul having nearly lost his sanity during his time in Tartarus can be quite satisfying, seeing the sociopathic Yakuza boss being reduced to a pathetic crying mess.
- In Chapter 322, Bakugo finally apologizes to Midoriya, even using his real name, for all the hurtful bullying he put him through over the years. The fact that the culmination of his Character Development is not some great triumphant battle against a powerful villain, but rather bowing his head and saying sorry for his actions and admitting that he was wrong, more than any other moment he has had, this proves Bakugo has truly changed and become a better person.
- The Final Battle Arc undoubtedly has several moments:
- After spending the entire manga being The Chessmaster who's always in control, All For One having a complete Villainous Breakdown when Star and Stripe's Heroic Sacrifice completely screws him over is awesomely satisfying.
- Seeing All For One be completely outplayed by the heroes, after hearing him brag about his plans within plans for several chapters, is very satisfying. Especially because while on the surface he tries to seem only mildly annoyed, his inner monologue shows he's completely befuddled and at a loss to understand how they managed to outsmart him.
- Jiro managing to spur the Vestiges inside All For One to start rebelling and breaking his mask alongside Hawks after hearing the villain call the team weaklings and only existing for him to crush in order to show how powerful he is. Even better is, while All For One was already having a Villainous Breakdown, this makes it the most obvious as All For One can only internally rave in frustration about how this shouldn't be possible. All with a shot of his normal Slasher Smile replaced with a forced, frustrated one as he tries to maintain his composure.
- Skeptic spends about every scene he's in bragging about his skills and plotting to destroy the enemies of the Meta Liberation Front, up to the point of trying to bring UA down onto the evacuation centers, so seeing him have a massive Villainous Breakdown when La Brava makes a complete fool out of him is quite satisfying, especially for those who hated what he did to Twice.
- After Tomura Shigaraki spent most of the final arcs being possessed by All For One in a controversial plot twist, the fanbase took utter glee in him castigating his mentor with a brutal "The Reason You Suck" Speech before ripping the vestige to shreds from within him, setting up the final fight against Izuku and ultimately cementing himself as the true Big Bad of the entire series.
- Seeing everything All For One has done start blowing up right in his face when Gigantomachia turns on him for abandoning him, leaving him to be pummeled into the ground by him, Tokoyami, and Mt. Lady. And to add more salt on AFO's open wounds, a few chapters later, Stain backstabs the wannabe Demon King and aids All Might in the battle, helping to deliver the final nail in the coffin.
