History ThereIsNoKillLikeOverkill / AnimeAndManga

** Pretty much every major character applies this trope at least once. (Of course, for the times where the duel was done in front of an audience, it may have been a case of "giving the viewers what they want".) For example, Kaiba. Why blast your opponent with one large and powerful dragon when you can use THREE JOINED TOGETHER?

** ''Anime/MartianSuccessorNadesico'' has not just one, but TWO WaveMotionGun's that qualify: The standard Gravity Blast Cannon that is already capable of decimating fleets of ships and the Y-Unit upgrade known as the Phase Transition Cannon, which folds space around an entire area, destroying everything ''including space itself''. It was so destructive that it was never used again, with Yurika stating bluntly (unlike her) that no person or organization should ever have access to such power.

** Rebuild 2.22; Asuka's introduction, the Dummy Plug activation against Bardiel, The fight against Zeruel and the last scene.

** ''Anime/MartianSuccessorNadesico'' has not just one, but TWO WaveMotionGun's

** A smaller example in ''Anime/GirlsUndPanzerDasFinale'' has the girls of Anglerfish Team nearly get into a BarBrawl with the [[JapaneseDelinquents delinquents]] that will make up Shark Team. In response to the small assortment of {{Improvised Weapon}}s they were brandishing, Yukari pulls out ''a [[https://en.wikipedia.org/wiki/Stielhandgranate hand grenade]]''.

** ''Anime/AfterWarGundamX'': The X Gundam's and Double X Gundam's Satellite Cannons. Think of Wing Zero's overpowered Buster Rifle times about ten, and you might have one of these. Explicitly stated to be anti-army weapons or Space Colony destroyers.
** ''Anime/MobileSuitGundamUnicorn'': The Full Armor Unicorn. Basically they slapped a large backpack and extra boosters on the Unicorn and crammed in as many weapons as they possibly could. In addition to its standard armament of a Beam Magnum, head vulcans, and four beam sabers, it now has ''two'' double-barreled beam gatlings, another double gatlings on the shoulders, multiple missile pods on its legs and more on the backpack, two shoulder-mounted bazookas, two anti-ship missile launchers, two grenade launchers, 24 (MS-scale) hand grenades, and two beam javelins/halberds. This thing is seemingly designed to take on an entire army on its own.

** ''Anime/MobileSuitGundam0080WarInThePocket'' is probably one of the earliest instances of this trope in the franchise. The Kampfer has just used its chain mine to destroy the Gundam NT-1 "Alex"'s Chobham Armor and has pulled out its beam saber for what its pilot hopes is the final blow. The Alex responds by raising up its arm and firing its Gatling Gun mounted on its forearm and just ''kept firing'' until the stupid thing fell down and stayed down. The poor pilot was so much hamburger.

* [[TheEvilPrince Gihren Zabi]] of ''Anime/MobileSuitGundam'' backs various superweapon projects, killed a billion people in the first week of the war with [[DeadlyGas chemical weapons]], [[ColonyDrop drops a colony]] on Earth Federation headquarters, and uses nuclear weapons at the first real battle between Zeon and the Federation. That's without taking into account his use of the [[WaveMotionGun Solar Ray]] to assassinate ''one man''; [[spoiler:namely, his own father.]]
** To say nothing of Char's slaying of Kycillia: [[BoomHeadshot shooting her in the face]] with a ''rocket launcher''. The missile was flying so fast it smashed through the bridge of her ship and ''tore her head off'' before it even exploded.

* From ''Anime/MobileSuitGundam0083StardustMemory'', we have the Dendrobium "Orchis", a massive mobile armor which docks with the "Stamen", a regular-sized Gundam. It features self-guided MacrossMissileMassacre-launching projectiles, chain mines, folded-up weapons for the Stamen to use, its own I-field generator, two massive claws outfitted with beam sabers, and a WaveMotionGun, which can also be used to [[spoiler:stab enemy mechs with, as seen in the climax]]. It's so powerful that in order to reconcile it with ''Zeta'', they had to have the entire incident covered up.

*** The aforementioned Spell Card, [[http://yugioh.wikia.com/wiki/Berserker_Soul Berserker Soul]], exists in the real life card game. And just like Yami Yuhi did to Haga, the game mechanics meant that you were absolutely allowed to keep overkilling your opponent with it after dropping their Life Points to 0 (up until a rule change stating that a Duel could end before a card effect resolves fully).

*** The first is the [[https://en.wikipedia.org/wiki/Karl-Ger%C3%A4t Karl-Gerät]], an open-topped siege mortar with a gun bigger than anything you can find on a battleship[[note]]Its gun's bore measures at '''600mm'''. In comparison, the Yamato's largest guns are at 460mm[[/note]].

* ''Manga/{{Gunnm}}'':

** [[Anime/GirlsUndPanzerDerFilm The film]] has Oarai face the University All-Stars Team. This match-up is even more lopsided than the one with Kuromorimine because it has their mostly light and medium, eight tank unit against '''thirty''' late-/post-war heavy tanks. And then [[CorruptBureaucrat the government official putting this together]] [[KickTheDog decided to approve their fielding of these two]]:

** To say nothing of Char's slaying of Kycillia: [[BoomHeadshot Shooting her in the face]] with a ''Rocket Launcher''.The missile was flying so fast it smashed through the bridge of her ship and ''tore her head off'' before it even exploded.

** [[Anime/GirlsUndPanzerDerFilm The film]] has Oarai face the University All-Stars Team. This match-up is even more lopsided than the one with Kuromorimine because it has their mostly light and medium, eight tank unit against '''thirty''' late-/post-war heavy tanks. And then the Minister of MEXT decided to approve their fielding of these two:

** [[Anime/GirlsUndPanzerDerFilm The film]] has the University Team field two of them:

*** The second is a [[https://en.wikipedia.org/wiki/T28_Super_Heavy_Tank T-28 Super Heavy Tank]], a [[MightyGlacier slow but nigh-unstoppable juggernaut]] that no tank on Oarai's team is equipped to deal with.

*** The first is the [[https://en.wikipedia.org/wiki/Karl-Ger%C3%A4t Karl-Gerät]], an open-topped siege mortar with a gun bigger than anything you can find even on a battleship[[note]]Its gun measures at '''600mm''' while the Yamato's largest guns are at 460mm[[/note]].

** A smaller example in ''Anime/GirlsUndPanzerDasFinale'' has the girls of Anglerfish Team nearly get into a BarBrawl with the [[JapaneseDelinquents delinquents]] that will make up Shark Team. In response to the small assortment of ImprovisedWeapons they were brandishing, Yukari pulls out ''a [[https://en.wikipedia.org/wiki/Stielhandgranate hand grenade]]''.

* In the anime version of ''LightNovel/SwordArtOnlineAlternativeGunGaleOnline'', after M blows up the hovercraft on the lake and its driver falls onto shore, LLENN runs up to finish him off. Being that her gun is a bit weak, she hits him with about a dozen rounds... [[UpToEleven then another burst of fire... and then another burst of fire until the P90's 50-round magazine is empty.]]

** In Yugi's duel with Noah, Noah has ''a hundred times as many life points" as him. Yugi still ''defeats him in one turn''.

* In ''Manga/DGrayMan'' Yu Kanda kills [[spoiler: Skinn Bolic]] by cutting him multiple times, stabbing him with his sword in the left side of the chest (where the heart is), slicing him from the shoulder down to the lower belly which causes the innocence to melt in his body as well and finally bisecting him to eventually make him stop to move.

* In ''Manga/DGrayMan''Yu Kanda kills [[spoiler: Skinn Bolic]] by cutting him multiple times, stabbing him with his sword in the left side of the chest (where the heart is), slicing him from the shoulder down to the lower belly which causes the innocence to melt in his body as well and finally bisecting him to eventually make him stop to move.

** Well, luckily, they ended up not having to do that [[spoiler: due to the excellent timing of Eva Unit-01 in going berserk again]]

** One chapter of ''[=ViVid=] Life'' has Nanoha Fate and Hayate use their [[CombinationAttack Triple Breaker]] (the same move they used to vaporise [[EldritchAbomination Nachtwal]] 14 years earlier) to try and shoot a ball fast enough to get past Vivio in a carnival game. [[AwesomeButImpractical The insane speed of the ball causes it to burn up from air friction before it even reaches her]].

* ''Anime/SpaceBattleshipYamato'' manages this with its fleet-destroying WaveMotionGun. The ''Andromeda'' class ships, for some reason, mount * two* of them!

** [[BigBad DIO]] attempts to use this in the climax of his fight with Jotaro. [[TimeStandsStill Jotaro, frozen in place,]] has precious few seconds to plan a defense against DIO, as most of his bones are broken, and he'll have a very short window of opportunity to defend himself. Expecting a flurry of knives or a physical rush, DIO instead [[LargeHam throws a steamroller at him,]] before jumping on top of it and pummeling it into the ground.

* ''Manga/JoJosBizarreAdventure'' has two of the titular characters, Jotaro and Giorno, beating up Steely Dan and Cioccolata for three and seven pages respectively, all the while shouting their beat-em-up phrases, and the cherry on top for Giorno is a [[MemeticMutation WRYYYYY]] that continues off the page, reminding the readers who his [[BigBad father]] is.

* In ''Manga/RoseOfVersailles'', [[spoiler:Oscar dies when she is shot by over a dozen muskets.]] Justified, since that the inaccuracy of smoothbore muskets, that, unless you have very high aiming skills of a professional hunter, you had to resort to do this when you shoot a single person at that distance.

** Epically done by Yami Yugi, after Yugi's soul is taken by the Oricalchos. Insector Haga ''[[BullyingADragon taunts]]'' the guilt-wracked and now rather unstable Yami by tearing up a card in front of him after claiming Yugi's soul was in it and that [[DeaderThanDead tearing it up erased him]], "[[MoralEventHorizon as a joke]]". Yami Yugi...well, he goes [[UnstoppableRage totally and utterly apeshit]]. Using the Spell Card Berserker Soul which allows him to attack as long as he continues to draw Monster Cards, Yami Yugi defeats Haga by drawing two Monster Cards, which are enough to drop his Life Points to 0. However, the enraged Yami Yugi then continues bashing at him, by drawing at least '''six''' more monster cards in a row, each hitting for 1500 damage each. He would've kept going too, if Anzu hadn't stopped him. [[https://www.youtube.com/watch?v=321wCzRSySw&t=50s Here's the scene]]...Not pretty. Though, this was cut shorter in the dub.