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3%% This list of examples has been alphabetized. Please add your example in the proper place. Thanks!
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6!!Often a {{Death Trope|s}}, so expect to see unmarked spoilers ahead.
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8[[AnimatedFilms Animated]] and [[LiveActionFilms Live-Action]] [[{{Film}} Movies]] don't all have to end with an all-out, epic FinalBattle; sometimes the heroes simply [[HoistByHisOwnPetard turn the villains' plans and/or weapons on themselves]].
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11[[folder:Films — Animation]]
12* ''Franchise/{{Aladdin}}'':
13** ''WesternAnimation/{{Aladdin}}'': Jafar has Aladdin cornered and brags that he's the most powerful being ever and that Aladdin is nothing without the Genie. This gives Aladdin the idea to claim that Jafar isn't the most powerful since it was the Genie who granted him the power, this tricking him into using his last wish to become an all-powerful genie, forgetting that genies are bound to their lamps.
14** ''WesternAnimation/AladdinTheReturnOfJafar'': At the climax, Jafar opens the earth and traps our heroes in a lava pit...only to eventually have Iago [[AchillesHeel kick his lamp into the lava]], causing Jafar to electrocute, then explode into nothingness.
15* Though he survives, it's his own love for {{opera}} that undoes the Cat R. Waul's plan in ''WesternAnimation/AnAmericanTailFievelGoesWest''. Though his plan is initially to kill all the mice in town with a giant mousetrap, once he hears Tanya's singing, he decides to spare her. When she discovers Cat R. Waul's plan, she places herself on the mousetrap to warn the others. Cat R. Waul stops his henchman from activating the mousetrap to keep from killing her and her beautiful voice, giving the other mice a chance to escape. This very same mousetrap is also used to catapult Cat R. Waul and the other cats out of town.
16* This shows up more than once in ''WesternAnimation/{{Barbie}}'' films:
17** ''WesternAnimation/BarbieInTheNutcracker'': The Mouse King tries to cast a spell on Clara to shrink her down even smaller than he did at the beginning, but Eric uses his sword to reflect the spell back at him, shrinking ''him'' down to a much more size-accurate mouse too small to do anything but run away.
18** ''WesternAnimation/BarbieAsRapunzel'': Gothel tries to punish Rapunzel for lying to her by casting a spell on the tower to "never release your prisoner with a lying heart." Except Rapunzel [[ExactWords never actually lied]], so she can stroll right out. Gothel, on the other hand, has lied countless times and is therefore trapped inside for all eternity.
19** ''WesternAnimation/BarbieOfSwanLake'': Rothbart is defeated when the magic crystal that he obsessed over stealing from Odette is powered up by [[ThePowerOfLove Odette and Daniel's love]] when he wears it, exploding and practically killing him.
20** ''WesternAnimation/BarbieInTheTwelveDancingPrincesses'': When Duchess Rowena obtains a wish-granting flower, she tries to use it to inflict an IronicHell on Genevieve by wishing that Genevieve would "dance forever and ever." Genevieve uses a fan to wave the flower's magic pollen back at her, inflicting it on Rowena instead. What doubles the irony is that Rowena earlier gave Genevieve and her sisters a lesson on how to use said fan, sealing her fate.
21** Towards the end of ''WesternAnimation/BarbieAndTheDiamondCastle'', [[BigBad Lydia]] is turned to stone by the very spell she was casting on Liana and Alexa.
22* In ''WesternAnimation/BatmanBeyondReturnOfTheJoker'', the eponymous villain is hoisted multiple times:
23** The most interesting variant is that the Joker is killed by the same weapon he used on one of his own thugs in an earlier scene. What makes this interesting is that, while in order of appearance he shot the gun first, the scene where he dies chronologically happens some forty years before he actually killed the goon. Considering also that he was shot by Tim Drake, who was brutalized by Joker and used as a psychological weapon against Batman, he might have been hoisted on two petards at once.
24** ''Then'', later, Joker -- now residing in Tim Drake's body with [[VirtualGhost the wonders of modern technology]] -- is ended for good by his own [[ElectricJoybuzzer electrical joy-buzzer]].
25** More than that. Joker is undone by [[LegacyCharacter the new Batman]] (Terry [=McGinnis=]) using the same methods Joker always used to unnerve Bruce Wayne -- [[IShallTauntYou jokes and insults]]. Turns out Joker can dish it out, [[VillainousBreakdown but he can't take it]].
26* In ''WesternAnimation/TheBatmanVsDracula'', even though the Joker has his [[JokerImmunity namesake immunity]], he briefly experienced this after he plummeted into a canal with a malfunctioning electrified joy-buzzer.
27* In ''WesternAnimation/TheBlackCauldron'', [[BigBad the Horned King]] spends the entire movie trying to get his hands on the Black Cauldron, an ArtifactOfDoom that can create an army of invincible undead warriors out of corpses. Gurgi's sacrifice near the end of the movie causes the Cauldron-born to die. The Horned King, who was pushed near it by Taran, [[OhCrap realizes]] to his horror that the Cauldron is drawing ''him'' into it. The Cauldron reduces the Horned King to dust as it sucks him in and brings the castle down with him.
28* The entire plot of ''WesternAnimation/{{Bolt}}'' is a double-dose of this for the makers of the ShowWithinAShow. In an attempt to boost the show's ratings among older viewers, they decide (or rather [[ExecutiveMeddling are forced]]) to break from the show's formula by ending the latest episode on a dire cliffhanger. This runs afoul of their longstanding decision to delude the titular dog into believing that the events of the show were real to get the most effective performance, setting off a chain of events that leads to Bolt breaking out of his delusion, and both he and his owner dropping out of the show, forcing the crew to cancel the resolution of the cliffhanger, and make do with clearly inferior replacements, compensated for by extremely gimmicky plots that even one of show's biggest fans finds hard to swallow, further tanking the show's reputation to the point that it's heavily implied that the show will be cancelled sooner rather than later. Doubles as LaserGuidedKarma given how poorly the crew treated them.
29* At the climax of ''WesternAnimation/Cars2'', Miles Axlerod straps a TimeBomb to Mater and leaves him chained up in Big Ben to die. [[BondVillainStupidity Naturally]], Mater escapes, and confronts Axlerod in public while the bomb is still ticking down. At the last second, Axlerod panics and issues the verbal deactivation code, saving himself and Mater but outing himself as the BigBad in the process. Of course, if he ''hadn't'' done that, he would have been blown up by his own bomb, which would also be this trope. [[SadisticChoice He was screwed either way]].
30* In ''WesternAnimation/CatsDontDance'', Darla Dimple's attempt to discredit animals one last time backfires as each thing she does just adds more to their show-stopping performance. As the roof-blowing finale pushes her into a VillainousBreakdown, she cements her hoisting by crawling over to Danny and, unwittingly, growls out that she "Should have drowned them all when she flooded the stage" ''[[EngineeredPublicConfession in front of the audience]]''.
31* Mrs. Tweedy, the main antagonist of ''WesternAnimation/ChickenRun'', after accidentally cutting the Christmas light chain on the crate, falls back into her own chicken pot pie machine, causing it to get jammed and explode. All her HenpeckedHusband does afterwards is say "I told you they were organized!", and then push the barn door down and crush her, after she growls at him through her gnashed teeth.
32* Near the end of ''WesternAnimation/DennisTheMenaceInCruiseControl'', Dennis turns Kraigor's own [[HypnoticEyes hypnotic powers]] against him by simply placing a mirror in front of him before he himself could be hypnotized, forcing him into a HumiliationConga before he, Joey and Liana force him to reveal the truth as to why he wanted to take over Mimosa. Because Kraigor hypnotized himself, everyone he hypnotized, including Liana's guards, are freed from his spell and he is subsequently sent to the dungeon for high treason.
33* In ''WesternAnimation/DespicableMe3'', Gru defeats Balthazar Bratt with the latter's own keytar and giant bubble gum bubbles.
34* In ''WesternAnimation/TheEmperorsNewGroove'', had Yzma not sent Kronk down a trapdoor, he wouldn't have (accidentally) stopped kitten Yzma from drinking the antidote potion. Better yet, had she not insulted him [[BerserkButton (and his cooking)]] earlier then, Kronk might not have made a definite HeelFaceTurn.
35* In ''Animation/FiringRange'', the inventor is killed when his [[TheEmpath empathic tank]] senses fear in him, triggering its attack.
36* ''WesternAnimation/HeavyMetal'' segment "Taarna". Taarna kills the Barbarian Leader by pushing his chainsaw hand into his own chest.
37* In ''WesternAnimation/HelpImAFish'', [[BigBad Joe]] the pilot fish dies ([[FamilyUnfriendlyDeath rather horribly]]) when he drinks too much of the Anti-Fish potion, effectively turning into a human. Whilst underwater. He drowns.
38* ''WesternAnimation/HeyArnoldTheMovie'': [[MegaCorp Future Tech Industries]], the homebase of the BigBad, [[CorruptCorporateExecutive Alphonse Perrier du von Scheck]], has [[BigBrotherIsWatching security cameras]] ''[[BigBrotherIsWatching everywhere]]'' [[BigBrotherIsWatching in the building]] and they record everything that goes on in said building 24/7. The evil land developer and descendant of a commanding Redcoat in the Revolutionary War who sought to illegally demolish Arnold and Gerald's neighborhood where a significant battle took place and erect a large shopping mall in its place to [[EvilIsPetty avenge his ancestors]] made that perfectly clear when he meets the boys for the first time, but [[DidntThinkThisThrough he didn't think it would result in his downfall]] until near the end of the film. After Scheck [[EvilGloating gloats about]] [[DidYouActuallyBelieve his true motives]] to the boys and [[FieryCoverUp burns]] [[DestroyTheEvidence the document that declares the neighborhood a national landmark]] [[EngineeredPublicConfession in front of them]] so he can proceed with his plan, it comes back to bite him right in the ass due to the whole thing having been CaughtOnTape by said cameras, and the document being shown as clear as possible before it was burned. Arnold manages to retrieve the incriminating video from the security footage and show it to the angry townspeople, resulting in Scheck's eventual [[PutOnAPrisonBus arrest]].
39* In ''WesternAnimation/TheHunchbackOfNotreDameDisney'': [[SinisterMinister Frollo]] gets hit with this twice during the climax.
40** He keeps hacking the stone gargoyles they are clinging to with a sword. The circumstances conspire so that he has to use one of the gargoyles for support. As he climbs on top of the gargoyle and raises his sword to kill Esmeralda, Frollo bellows "[[DeathByIrony AND HE SHALL SMITE THE WICKED AND PLUNGE THEM INTO THE FIERY PIT!]]". But just then, the cloven stone breaks under his weight and he plunges to his death. For extra flavor, said gargoyle appears to come to life to snarl at Frollo, who has only enough time to let out a shocked cry of [[BigNo "NO!"]] before he falls.
41** A few seconds earlier, Frollo ensnares Quasimodo with his cape and attempts to drag him off the cathedral. However, Quasimodo reflexively grabs the cape, causing Frollo to fall off the cathedral and leaving him hanging onto Quasimodo (now holding the cape) for dear life until he can find another handhold.
42%%* ''WesternAnimation/IceAgeDawnOfTheDinosaurs'' has a pterosaur’s plan to scare the possums backfire.
43* ''WesternAnimation/TheIncredibles1'':
44** Syndrome is knocked onto the wing of his jet and subsequently sucked into its engine. There's a long enough pause between the two that Syndrome easily could have survived had he not been wearing a cape (which the audience had been warned is a bad fashion choice for a superhero), or [[ForgotAboutHisPowers remembered one of his rocket boots was still working]].
45** This happened a good deal to Syndrome. His robot was so smart that it figured out his wrist computer was a threat and shot it off. He was knocked into the engine by Mr. Incredible's sports car, which Syndrome had essentially paid for by hiring him for secret hero work. Also, this secret hero work helped Mr. Incredible bounce back from a flabby has-been who barely survived a prototype robot, into the efficient, superheroic persona of his glory days who could fight back. And his [[HighHeelFaceTurn right-hand, Mirage, betrays him at the critical moment]], largely due to his own cavalier attitude when Mr. Incredible was threatening to kill her.
46** Speaking of the robot, the only way to destroy it is to get it to attack itself, which becomes a ChekhovsGun when fighting the second, more powerful robot. Score one SugarWiki/MomentOfAwesome for the Parr family, [[NiceJobFixingItVillain and Supers in general besides.]]
47* Similarly to the comic book variant, in ''WesternAnimation/JusticeLeagueTheFlashpointParadox'', Zoom confronts Barry Allen and begins beating him up, gloating over how he broke time saving his mother, but Zoom can do whatever he pleases because trying to stop Zoom will break time. He doesn't count on the Thomas Wayne Batman shooting him in the head.
48* At the climax of the first vignette of ''WesternAnimation/KronksNewGroove'', Yzma uses her failsafe plan to escape the mob of angry elderly folk whom she cheated by drinking a potion to transform into a ridiculously adorable bunny, simultaneously placating the angry mob, and attracting the attention of a mother eagle. The last we see of bunny Yzma is her screaming just as the eagle's two ravenous chicks are about to pounce on her.
49* Lord Shen in ''WesternAnimation/KungFuPanda2'' invents cannons, which he uses to kill some of the best kung fu masters in China and plans to conquer all of the land. Po manages to find inner peace and masters the technique for catching raindrops without breaking them, which he uses to catch cannonballs and throw them back. Thus Shen's entire armada gets destroyed by their own weapons. He is killed when he tries to kill Po with his knives and accidentally cuts a rope that holds his biggest cannon, causing the heavy weapon to fall on the wicked peacock, crushing him to death.
50* ''WesternAnimation/TheLegoMovie2TheSecondPart'': When the Master Builders fire a missile at Sweet Mayhem's ship, the machine just takes the missile and fires it back at them.
51* Mentioned in the DVDCommentary for ''WesternAnimation/TheLionKing1994'' when Scar is eaten by his hyena minions, who had heard him lie to Simba about how they were his enemies. Even moreso when it appears as if [[QuirkyMinibossSquad the trio]] were all set to come to his aid before they heard him throwing them under the bus to save his own skin.
52* ''WesternAnimation/TheLittleMermaid1989'': Throughout the story, Ursula shows two very prominent traits: Her lust for Triton's trident, and her sadistic cruelty. She uses the power of the trident to raise a shipwreck from the depths and tries to run Eric over with it. He dives under and is able to use a loose mooring line to climb up and get on the ship. Ursula, for her own part, ignores Eric after this to indulge her sadism by flinging Ariel into a whirlpool and trying to shoot her with the trident. Because she's too busy drunk on her power and cruelty, Eric [[ImpaledWithExtremePrejudice rams a sunken ship's splinter bowsprit into her]]. And to top it off, the built-up power in the trident backfires on Ursula, [[XRaySparks electrocuting her brutally]] before she sinks into the ocean.
53* In ''Pixi Post & the Gift Bringers'', the BigBad uses a device to turn the other holiday genies, and at one point the protagonist herself, into advertisements. When his plan has been foiled, he attempts to use it on Hoteiosho and Pixi again, only for Pixi to reflect the beam with a piece of ice and turn him into a rubber ball that is then played with by her whale friend.
54* In the animated film version of ''WesternAnimation/PlanetHulk'', the [[BigBad Red King]] gets a triple whammy on this trope, as he is [[TheDogBitesBack betrayed]] by [[TheDragon his Shadow]] who he had personally sought after, [[ThePlague infecting him with his greatest weapon]] which he personally called his "Legacy", which led to him being burned to death by the very MechaMooks that he had called upon as reinforcements as they had been programmed to exterminate all infected beings.
55* ''WesternAnimation/ThePrincessAndTheFrog'':
56** When Dr. Facilier's demonic amulet gets shattered, that's considered to his Friends on the Other Side as breaking their contract, causing the shadowy demons that once worked for him to drag him into a gaping mouth to his doom, [[AwesomeMusic/{{Disney}} all the while happily chanting the exact same song that he was singing when he was cursing Naveen]]. More specifically, they drag away [[LivingShadow Facilier's shadow]], which (due to being attached to Facilier) drags him along as well, with his greatest tool now becoming his doom.
57** How he got himself into that position in the first place counts too. Facilier's shadow foiled Tiana's first attempt at smashing the amulet, and Facilier transports them both to a graveyard, turns Tiana into a frog, then pins her to the ground with his cane, taunting her about how she'd be stuck as a frog. What does Tiana do? [[NiceJobFixingItVillain Take advantage of her frog-form's long tongue and much smaller size to snatch the talisman from his hand and smash it before he can do anything about it!]] He really did set the stage for his own demise.
58* In ''WesternAnimation/QuestForCamelot'', Ruber's tricked into slamming Excalibur back into the Stone. However, since he had earlier used magic to fuse his hand with the legendary weapon (since the weapon would not allow him to wield it otherwise), the magics inside the stone reacted violently, tearing apart the mad knight.
59* At the end of ''WesternAnimation/{{Robots}}'', BigBad Madame Gasket falls into her own incinerator, which she was previously established as using to [[KillThePoor melt down lower-class robots]] into products for her son's company to sell.
60* In ''WesternAnimation/RocketSavesTheDay'', Rocket and Little Yellow Bird use the Pest's own trick against him, takinga away a letter to turn him into a pet. It's said, though, that he really got more-or-less what he wanted, some friends to learn new words with him.
61* At the end of ''WesternAnimation/SnowWhiteAndTheSevenDwarfs'', [[GodSaveUsFromTheQueen the Evil Queen]] (disguised as [[OneWingedAngel the Witch)]] actually threatens to kill the seven dwarfs by crushing them with a boulder after they've discovered that she actually [[DisneyDeath "killed"]] Snow White with a poisoned apple and had her cornered at a cliff. Just right before she dislodges the boulder, the ledge the Queen is standing on is struck by lightning, [[DisneyVillainDeath and she plummets into the gorge below.]] Shortly afterwards, the boulder falls off the same cliff in the same direction as the Queen. Splat! And to top it all off, the two vultures that had been following her the whole time swoop down toward her body...
62* In ''WesternAnimation/StevenUniverseTheMovie'', during their initial fight, Steven is able to defeat Spinel using her own [[SinisterScythe rejuvenator]]. However, this bites him in the ass not long after, as it's designed to [[LaserGuidedAmnesia revert Gems to their factory default states]] and he needs to restore the mind-wiped Spinel's memory because she's the only one able to stop the DoomsdayDevice that she brought to destroy Earth.
63* A DownplayedTrope in ''WesternAnimation/StrangeMagic''. The imp is only successfully caught by Sunny because of help from the lizard that the imp had [[LovePotion love potioned]] into loving him. The imp had love potioned the lizard partially so that [[PetTheDog Sunny wouldn't get eaten by the lizard]], and partially because [[ItAmusedMe it amused him]] to have a lizard fall in love with an elf.
64* ''WesternAnimation/TheSwanPrincess'': In the third film, Zelda traps Odette and Jean-Bob inside a green dome that will destroy anything that touches it. Her fight with Derek ends with him knocking her onto the same trap, instantly vaporizing her.
65* ''WesternAnimation/{{Tangled}}'':
66** Gothel knocks aside her own basket in her haste to avoid the search parties. If she hadn't, the flower she was using to keep her youth would never have been found.
67** Flynn's attempt to scare Rapunzel back to her tower, with the Snuggly Duckling, backfires badly when the thugs there realize they can turn him in for the reward. Only Rapunzel's intervention saves him.
68** Gothel's vanity is what ultimately does her in when Flynn cuts Rapunzel's hair, killing the magic in her hair... [[HeroicSacrifice and letting himself die in the process]].
69* In ''WesternAnimation/{{Tarzan}}'', Clayton repeatedly tries to slash Tarzan with his machete. When Tarzan throws down a cluster of vines to entangle Clayton, he slashes through the vines in a blind fury, not noticing one is wrapping around his neck. Clayton chops through all the vines holding him up (including the one he's grabbing on to) and plummets with the one still wrapped around his neck. The vine pulls tight and Clayton is hanged.
70* Starscream's ChronicBackstabbingDisorder comes back to bite him in his shiny, metal ass ''terminally this time'' in ''WesternAnimation/TheTransformersTheMovie'' when he dumps the badly damaged Megatron out into space. This puts Megatron in a position to be found by Unicron and reformatted into Galvatron. Naturally, Galvatron decides to test his new weapons out [[YouHaveFailedMe on Starscream]].
71* One of the tasks in ''WesternAnimation/TheTwelveTasksOfAsterix'' is to enter The Place That Sends You Mad and retrieve a certain permit. However, the building is full of incompetent, selfish or unhelpful {{Obstructive Bureaucrat}}s, a nonsensical structure and tons of rules and required documents. Asterix drives this against them by asking for a non-existent permit, based on a non-existent note... which makes the bureaucrats run around in circles, unable to find either, and eventually going mad.
72* In ''WesternAnimation/WreckItRalph'', King Candy has this inflicted on him twice. The first time, he grapples with Vanellope as he attempts to kill her. Her glitching ends up revealing the truth -- that he was the thought-dead racer Turbo. The second time, after fusing with a Cy-Bug, he became drawn into the Diet Cola Beacon through the Cy-Bug's programming, and is destroyed by the hot soda.
73* In ''WesternAnimation/{{Zootopia}}'', Bellwether's plan is to have a savage Nick kill Judy, allowing her to further inflame anti-predator sentiment. As such, she calls the ZPD to come witness the death of Judy, but she does so before Nick actually kills her. When it's revealed they are carrying out a BatmanGambit, Bellwether has no time to adjust her plans [[EngineeredPublicConfession (which Judy had caught on tape)]] and is caught red-handed by the ZPD.
74[[/folder]]
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76[[folder:Films — Live-Action]]
77* In ''Film/TenCloverfieldLane'', as Howard started stalking Michelle as payback for trying to escape the underground bunker, Michelle dunks Howard with his own barrel of perchloric acid that starts corroding Howard to death.
78* ''Film/TheABCsOfDeath'': In the "H" segment, Frau Scheisse falls victim to her own DeathTrap.
79* ''Film/AcrossTheUniverse2007'': The anti-war activists Lucy joined turn to violence out of anger over the continuing war and peaceful protests being quashed, building pipe bombs (though she doesn't join in). Later, it's revealed that they blew themselves up accidentally (probably based on [[https://en.wikipedia.org/wiki/Greenwich_Village_townhouse_explosion some Weathermen doing this]]).
80* Debbie Jellinsky of ''[[Film/TheAddamsFamily Addams Family Values]]'' gets hers big time when she rounds up the entire family (with the exception of the new baby, Pubert) and puts them all in electric chairs. Pubert, after taking a very improbable trip to the sky, lands in the middle of the basement where Debbie is carrying out her plan and connects two frayed cords just as she throws the switch, which proves to short-circuit her plans as she is electrocuted instead.
81* In ''Film/TheAdventuresOfRockyAndBullwinkle'', Fearless Leader (Robert De Niro), Boris (Jason Alexander) and Natasha (Rene Russo) are de-generated by their own CDI (Computer De-Generating Imagery) which they attempted to use on Rocky and Bullwinkle over the course of the movie. They are transformed back into cartoons and are sent into the internet "where they were heard from no more."
82* ''Franchise/{{Alien}}'':
83** The CorruptCorporateExecutive in ''Film/{{Aliens}}'' who ordered the colony to acquire the alien eggs (and thereby caused all of their deaths) was eventually killed by the aliens himself.
84** In ''Film/{{Prometheus}}'', the Engineer's own bioweapon is what kills him in the end. Though, Shaw stuck it on him making it a borderline case.
85* ''Film/AlienNation'': When dealing with uncooperative Newcomers, one of the Newcomer [[TheAggressiveDrugDealer drug kingpin]] William Harcourt's preferred methods of killing them is to dunk them in salt water which is lethal to Newcomers. Guess how he later dies in his confrontation with Sikes.
86* ''Film/AlitaBattleAngel'': When Grewishka arrives at the BadGuyBar, he kills a random stray dog, [[ForTheEvulz just for the hell of it]]. This screws him over a few minutes later, because one of the bounty hunters in the bar, who otherwise wouldn't have interfered, was a dog lover, and sics his pack of robo-hounds on Grewishka, forcing him to retreat and costing him another chance of killing Alita. Grewishka destroying most of Alita's body in the fight also forces Hugo to transplant her into a much more advanced nanotech robot body, after he previously refused, so the next time she encounters Grewishka, [[VillainForgotToLevelGrind he is not even close to a match for Alita anymore]].
87* In ''Film/AmericanMe'' [[spoiler: Santana is brutally murdered by his own gang after demonstrating regret and hesitation in his willingness to kill for them, a cardinal sin he himself established and enforced.]]
88* In ''Film/{{Anaconda}}'', Sarone tries to feed a bunch of people to the biggest Anaconda to capture it, but the Anaconda escapes from its restraints and pursues him instead, eating him whole.
89* In ''Film/{{Andhadhun}}'', Manohar tries to shoot his way out when he is trapped in an elevator. The bullet ricochets, killing him.
90* ''Film/AssassinsCreed2016'':
91** By imprisoning multiple Assassin descendants and putting them into the Animus, Abstergo is able to track down the Apple of Eden. However, they realize too late that they've also made their prisoners stronger thanks to the Bleeding Effect, allowing them to escape and take down many of their personnel. To make matters worse, their victory in finding the Apple is short-lived because those very same Assassins are able to infiltrate their grand temple, assassinate Alan Rikkin, and steal the Apple. One of the security officials even says as much while looking at surveillance footage of Callum:
92--->''"We are feeding the beast."''
93** Collecting the weapons of previous Assassins (most likely for research in boosting synchronization) might have seemed harmless at the time... that is, until it gives their prisoners a full armory to take down everyone.
94* ''Film/TheAssignment2016'': After his unwanted sex reassignment, Frank gets back at Dr. Jane by mutilating her hands so she could never operate again.
95* ''Film/TheAvengers1998'': While Sir August is fighting Steed, he's stabbed through the chest with his own fighting staff and then hit by a bolt of lightning from his WeatherControlMachine and killed.
96* In the Disney adaptation of Victor Herbert's ''Theatre/BabesInToyland'', Barnaby, having come into possesion of Grumio's shrinking gun, which is used to shrink objects down to toy size and which can then be shrunk away into nothingness when used a second time, discovers that the shrinking gun works on people, too, since he uses it to shrink the Toymaker as a test. Barnaby then uses it to shrink Mary Contrary's beau, Tom Piper, so that Mary will be forced to marry Barnaby, lest he use the shrinking gun a fatal second time. Fearing for Tom's life, Mary agrees. But as the wedding begins, the shrunken Tom sneaks away to assemble an army of toy soldiers to [[ThisMeansWar launch an all-out attack on Barnaby]] -- [[SpeakNowOrForeverHoldYourPeace right at the moment where the Toymaker, forced by Barnaby to be the wedding parson, asks if anyone objects, which Tom, of course, does]]. When the attack ends, Barnaby retaliates by grabbing the shrinking gun to make good on his threat to shrink Tom away forever. But before he can do this, Mary grabs a toy cannon used in the attack and fires a shot from it at the gun, shattering it and spilling its contents all over Barnaby, shrinking ''him'' down to toy size, whereupon he is forced to fight Tom directly in a SwordFight (his cane is in fact [[SwordCane a sword in disguise]]). Naturally, Barnaby loses.
97* In ''Film/BackToTheFuturePartII'', Future Biff meets his end when he gets back to 2015 from sending the almanac to his younger self. This action, though it made his alternate self rich, also resulted in Lorraine killing him in 1996-A, as revealed on the audio commentary, which caused old Biff to fade from existence upon returning to 2015.
98* In the 2024 horror film ''Baghead'', Neil's attempts to gain control of the power of the witch culminate in him killing Iris, the current "guardian" of the witch, and then using the witch's power to bring Iris back, intending for Iris to legally sign the property over to him so that he will become the guardian instead. Unfortunately for Neil, by bringing Iris back in the witch, he has made the witch ''her own'' master, allowing her to kill Neil and escape her dungeon prison.
99* ''Film/BatmanFilmSeries'':
100** ''Film/BatmanReturns'':
101*** The Penguin gets this in spades. When he appears to have the race for Mayor of Gotham City in the bag, Bruce Wayne and Alfred [[EngineeredPublicConfession broadcast]] [[JustBetweenYouAndMe his previous rants directed at Batman]] [[EngineeredPublicConfession over the loudspeakers]] during his speech, which include such gems as "I played this stinking city like a harp from hell!" Penguin's VillainWithGoodPublicity status goes bye-bye, and [[ProducePelting the eggs and tomatoes are broken out]]. Later, after his plot to kill all the first-born sons of Gotham is foiled, Penguin straps rockets to his hundreds (thousands?) of penguins in order to destroy the city. Alfred is able to jam the signal used to control them, sending them off to follow a new beacon. When Batman arrives at his ElaborateUndergroundBase, Penguin wields a sword-umbrella, only for Batman to simply pull out a small remote control with a blinking red button. His eyes shift from the control, to something on the opposite side of the screen. Penguin does likewise, and sees his entire penguin army. He snaps (further than he already had) and is able to take the controller and press the button. The rockets launch, destroying what remains of the park, but also releasing a swarm of bats from the Batski which immediately descend upon the Penguin (a ''double'' Hoist By His Own Petard when you remember that he used a similar swarm of bats released by an umbrella in order to send the Ice Princess off a building and kill her, framing Batman for the whole thing). He stumbles backwards, through the ceiling glass, and into the icy polluted water.
102*** [[CorruptCorporateExecutive Max Shreck]], the other major villain, after receiving a HumiliationConga of his own for his manipulation and betrayal of the above villain, is eventually electrocuted by a power overload to the Arctic World park (presumably coming from the power plant that he had been doing a lot of his evil doings for), with the KissOfDeath delivered by none other than Catwoman, whose alter ego (Selina Kyle) he had been treating like shit through most of the movie. Turns out that one really ''can'' have too much power.
103** Two-Face in ''Film/BatmanForever'' is done in by his reliance on his special [[TwoHeadedCoin double-headed coin]]. When he flips it to decide whether or not to shoot Batman, Batman throws [[NeedleInAStackOfNeedles a handful of coins into the air to obscure it]], causing Two-Face to lose his footing and fall to his death as he tries to grab them all.
104** Poison Ivy in ''Film/BatmanAndRobin'' is ultimately undone by her own kiss and her plants. When she finally gets Robin alone she is able to get him to kiss her by telling him her plans, as a sign of trust between lovers, but immediately shows her true colors after their kiss. Robin reveals he protected himself from her poison with rubber lips, and Poison Ivy had just given herself away, failing Robin’s SecretTestOfCharacter to see if she loves him. Shortly afterwards she is defeated by Batgirl and knocked back onto her own Rose Throne, which closes on her and traps her. The Rose Throne was part of her seduction of Robin, a sign of her false love to him, being where they shared their kiss and after Robin outsmarted her she angrily shoves him from it, out of its range of harm. Ultimately her seductions of Robin led to her own undoing. Even better, her taunt to Batgirl during her battle with her reveals that [[MurderTheHypotenuse she was the one who pulled the plug on Mr. Freeze's wife, in order to have him for herself]], which Batman reveals to Mr. Freeze to disprove her lie that Batman had done it, meaning that Mr. Freeze is anything but inclined to be merciful with her upon their incarceration.
105* In ''Film/{{Bats}}'', [=McCabe=] is killed by the bats he genetically engineered to be the ultimate predator and to prey on humans.
106* ''Film/BerlinSyndrome'': Clare lures Andi back into the apartment near the end, having been released by his student Franka, and then locks ''him'' inside after he'd shut down the utilities in preparation to move.
107* In ''Film/BlackRat'', [[spoiler:Akane]] [[StaircaseTumble falls down the stairs]] and impales herself on the machete she was trying to kill Misato with.
108* In ''Film/BloodyHomecoming'', the killer dies when they fall on top of the sharpened spirit staff they have been using as an ImprobableWeapon and are impaled. At the time, the staff is stuck in their husband.
109* In ''Film/BrideOfTheMonster'', Dr. Eric Vornoff is killed by his own giant octopus. "He tampered in God's domain."
110* Vic Deakin from ''Film/BrokenArrow1996'' gets hit by the nuke he intended to slaughter innocent millions with. It doesn't detonate, though.
111* As part of the film's CentralTheme of fate, ''Film/BulletTrain'' involves several characters getting killed because of their own actions.
112** The Wolf is accidentally killed when his own knife ricochets off of [[{{MacGuffin}} the briefcase]] Ladybug is holding and stabs him directly in the heart.
113** The Hornet is a ProfessionalKiller whose MO is to [[MasterPoisoner poison her targets with extremely potent boomslang snake venom]]. She dies when she's injected with her own poison, with her arrogance causing her to only bring a single dose of antivenom that ends up getting used by Ladybug.
114** This trope is the MO of [[BigBad the White Death]], who has a tendency to [[UseTheirOwnWeaponAgainstThem kill his enemies with their own weapons]]. The Prince attempts to [[ExploitedTrope exploit]] this using a rigged gun that [[BackwardsFiringGun fires a bullet backwards into the person holding it]], planning to trick her father into taking the gun and attempting to kill either her or the Father with it. While this initial plan fails, the White Death's end still does end up coming from an extreme buildup of this trope throughout the film. On top of the previously mentioned gun, the Prince also rigged the suitcase being delivered to him with a bomb, which gets set off right by his {{Mook}}s right before he has a chance to kill Ladybug. When he has the Elder at his mercy, he decides to kill him with a game of RussianRoulette "for old times sake", giving the Father enough time to intervene and allow the Elder the chance to mortally wound him. Finally, after learning that [[ComplexityAddiction his overly-complicated revenge plan]] was AllForNothing because the guy who killed his wife was never on the train in the first place, he attempts to kill Ladybug with the rigged gun, resulting in him accidentally killing himself.
115* In ''Film/CabinByTheLake'', serial killer Stanley murdered his victims by tying their feet to a concrete block and drowning them in a lake. As he tries to kill his two latest victims an underwater fight ensues with the police and they kill him in the same way. Subverted when they throw in a "the killer has survived" ending even though there's no way he could have survived.
116* In ''Film/TheCaliforniaKid'', Roy murders [[DisproportionateRetribution speeders who don't let themselves be pulled over]] by running them off the road. At the end of the movie, Roy tries to run Michael off the road, but Michael suddenly pulls ahead, causing Roy to lose control and drive off the bend to his death.
117* ''Film/CaptiveState'': One of the aliens' trump cards is an organic explosive that cannot be detected by any means by humans... or aliens. Subsequently, it's used extensively by the Resistance.
118* In ''Film/{{Casper}}'', Carrigan is killed and returns as a ghost, snatching up the treasure hidden inside Casper's dad's workshop and the Lazarus formula and plans to use the formula to rob banks as ghosts and revive herself (now having gotten rid of her {{Mook}}). However, Casper and Kat are able to convince Carrigan that she has no unfinished business, causing her to cross over to the other side.
119* ''Film/CreepVan'': The killer has been using his modified van to commit multiple murders throughout the movie. In the end, Campbell uses it to kill the killer by [[TearYourFaceOff slicing his face off]] (along with half of his head) with its razor-sharp windows.
120* ''Film/Criminal2016'': Bill/Jericho has the Dutchman fix the Wormhole program so that any missile Xavier fires will turn back and target him instead.
121* In ''Film/CrouchingTigerHiddenDragon'' Jade Fox tries to kill Mu Bai with a hail of poison darts, but Mu Bai deflected them back at Jade Fox.
122* ''Film/CSATheConfederateStatesOfAmerica'':
123** The racism that the Fauntroy family espoused, encouraged, and applauded end up costing John Ambrose Fauntroy V the presidency when he's unable to shake accusations that he has a black ancestor.
124** More specifically, him ''personally'' intervening to get the reporter Lindsay an interview with some slaves directly led to the JBU and his slave Horace exposing Fauntroy's possible black ancestry through a clandestine note passed to her by one of the slaves. One wonders if him knowing he engineered his own downfall was a contributing factor to his suicide.
125* Cryan from ''Film/TheDaisyChain'' sets a trap for Daisy, planning to burn her to death. Instead, he accidentally [[ManOnFire sets himself on fire]].
126* A non-fatal version appears in ''Film/Daredevil2003'' when Matt Murdock's partner Foggy puts some stuff in Matt's coffee as a practical joke. The moment Foggy's head is turned, looking at Elektra, Matt switches their coffees, giving Foggy a taste of his own medicine.
127* [=McDermott=] from ''Film/DarkAugust'' summons a demon in the form of a hooded figure to haunt Sal, who accidentally killed his daughter. When a psychic tries to dispel the demon, [=McDermott=] shoots her in the middle of the ritual. The hooded figure then turns on [=McDermott=] and kills him.
128* ''Film/TheDarkCrystal'': [=SkekZok=]'s killing Kira gives Jen the resolve to heal the Crystal, causing the downfall of the Skeksis Empire.
129* In ''Film/{{Dave}}'', White House Chief of Staff Bob Alexander chooses to have Dave pose as the President when the real President is felled by a stroke. It works...only Dave decides to go ahead and embark on things against Bob's interests such as a major job bill and because everyone believes he's the President, they go with it.
130** Bob tries to fire Dave only for Dave to fire back that's he perfectly ready to go ahead and tell the world the truth. Too late, Bob realizes there's no way he can expose the scam without revealing himself as the mastermind and going to jail.
131** Fired, Bob tries to hit back by revealing how the President was behind a corrupt S&L deal. Dave proceeds to address Congress, confess to "his" involvement but then reveal files on how Bob was just as complicit in the corruption. Bob ends up being sent to jail, once more unable to tell anyone how Dave is an imposter as it would just get him in worse trouble.
132* ''Franchise/DCExtendedUniverse'':
133** In ''Film/BatmanVSupermanDawnOfJustice'', during the warehouse fight scene, one of Lex's {{Mooks}} tries to use a grenade against Batman. As he pulls the pin out, Batman punches another mook he had hung up by the leg onto him, knocking the grenade to the floor - the resulting explosion taking out both mooks.
134** In ''Film/JusticeLeague2017'', Steppenwolf's Parademons seek out and attack anyone who experiences fear. They turn on him in the end when he experiences fear of failure at the hands of the Justice League. Whether this is fear of the actual League or of what he fears Darkseid will do to him upon discovery of his failure is unclear, but fear is fear to Parademons.
135** In ''Film/Aquaman2018'', this happens to both of the Kanes when dealing with Aquaman:
136*** Jesse Kane fights Arthur with an [[MixAndMatchWeapon assault rifle fitted with an under-barrel grenade launcher]]. Not the best choice of weapon inside a submarine, as Jesse finds out when Arthur dodges a grenade and it instead blows a hole in the sub's pressure hull. The explosion also causes Jesse to get pinned by a torpedo while the submarine sinks. His son begs the super-strong Arthur to save him, but Arthur isn't inclined to rescue the man who killed numerous submariners and just tried to shoot him.
137*** Black Manta's targeting system gets damaged in his fight against Arthur in Sicily, and when Arthur throws two spherical concrete stumps and the chain barrier connecting them at him like bolas, those entangle around his neck and helmet as he's about to shoot and the plasma beam backfires in his face.
138* In ''Film/DeathFactory'', Rachel is finally able to overpower Alexa by knocking her down and stabbing her with her own [[WolverineClaws scalpel-accented hands]].
139* In ''Film/DeathRace'', Jensen is imprisoned and forced to participate in the titular event in order to get a "get out of jail free" card. However, the Warden is not willing to let anyone out of prison, especially since the Frankenstein (whom he impersonates for the public) is the most popular racer of all, so she has her guards put a bomb in his car. When Frankenstein starts to win, she has her people detonate the device. Cue the pit crew laughing as the light on the disarmed device turns on with nothing happening. As the lead mechanic puts it, "Nobody fucks with my cars!" At the end, the Warden receives a package. She eagerly opens it, only to find out it's the same (rearmed) bomb. Cue the view from outside her office, as the building is engulfed in an explosion, as the same mechanic looks on.
140-->'''Coach:''' [[BondOneLiner I love this game]].
141* ''Film/DeepBlueSea'': In the climax, Dr. Susan [=McCallister=] is eventually eaten by the intelligent supershark that she herself had modified with illegal brain hormones.
142* In ''Film/DeepRising'', Simon Canton hired mercenaries/pirates to scuttle his luxury cruise liner and sink it with torpedoes so he could collect the insurance money. He meets his demise when the boat carrying the torpedoes (all of which had been armed previously in the film) collides into the ocean liner...with him on it and helpless to change its preprogrammed course.
143* ''Film/DesktopDesperadoes'': As skillfully manipulative as the main antagonist Alex may be, to leave your gun in a huff within easy reach for a hostage to grab is a mistake somebody with half a brain cell could have avoided. It later backfires even further when he is shot and it evaporates his human hologram disguise. This exposes his true identity, Pointer 95, Pointer's obsolete brother.
144* At the end of ''Film/DirtyPrettyThings'', the villain, who runs an illegal organ harvesting operation that preys on desperate illegal immigrants, has the tables turned on him by the heroes, who knock him out and steal ''his'' kidney.
145* In ''Film/DickTracysDilemma'', The Claw suffers a HighVoltageDeath when he attempts to stab Tracy with his HookHand and his hook gets snared in the high voltage wires of the electrical substation where he is hiding.
146* ''Film/DocSavageTheManOfBronze'': The Indian who had acted as Captain Seas' assassin by using the Green Death (created from the venom of poisonous snakes) falls into the pit holding the snakes and is bitten repeatedly, killing him.
147* In ''Film/DreamHouse'', Jack Patterson tries to kill Will and Ann in a house fire. It does not end well for him.
148* ''Film/DreamLover'': Lena. Her scheme to get Ray committed allows him to strangle her to death without legal consequence.
149* In ''Film/{{Dredd}}'', Judge Dredd kills the BigBad by dosing her with her own drug Slo-Mo and throwing her off the top of the building she'd taken over, as she'd done to someone else at the beginning of the film.
150* In ''Film/DumbAndDumber'', an enemy poses as a friendly hitchhiker, intending to drop pellets of rat poison into Harry and Lloyd's food. But before he can succeed in this, he needs first aid when his ulcer flares up (which was induced by Harry and Lloyd's own practical joking). Harry and Lloyd try to administer his emergency pills, but they mistake the pellets of poison for the ulcer medication, and feed him his own rat poison instead.
151* In ''Film/EdgeOfDarkness2010'', Craven gains a measure of symbolic revenge when he forces Bennett, the man who ordered the radioactive thallium poisoning of both Craven and his daughter Elle, to drink a jar filled with thallium-tainted milk.
152* In ''Film/EnterTheDragon'', Mr. Han dies when Bruce Lee kicks him into a spear that Han had hurled at him in the adjoining museum room during the early part of the final showdown.
153* In ''Film/ExMachina'', Nathan is killed by two of his creations, one of whom he had specifically mistreated and made plans to disassemble in order to motivate her to escape, which she successfully does because he underestimated the employee he brought there to see if she could manipulate him.
154* In ''Film/FaceOff'', Castor Troy teaches Sean Archer's daughter Jamie a trick with a butterfly knife (stabbing and then twisting the blade). In the climax when he takes her hostage, she uses it on him once she finally figures out who is who between Caster and her father.
155* In ''Film/FantasticBeastsAndWhereToFindThem'', magic-hating Mary-Lou Barebone abuses her adopted wizard son Clarence, forcing him to suppress his magic. Unfortunately for her (and for New York City), this results in his becoming an Obscurial, the host to an Obscurus (a manifestation of great and uncontrollable magic power), and she is killed when it finally erupts.
156* ''Film/FaustLoveOfTheDamned'': Not only is M destroyed as a result of a FaustianRebellion, but initially it was fool-proof: as part of their contract, John Jaspers couldn't harm him. It's only because of M's greed to claim the soul of Jade's child as well that he relinquishes the original agreement and removes the leash he had on Jaspers.
157* In ''Film/Firestorm1998'', BigBad Randall Alexander Shaye is ultimately killed by the very forest fire he started in order to cover his prison break.
158* ''Film/FlashGordon1980'': At the end, Ming is impaled on the nose cone of one of his own war rockets.
159* ''Film/Flodder3'': Van Brandwijk's attempt to destroy the Flodders by crashing a commandeered gasoline truck into their house results in the destruction of all the houses in his beloved neighborhood EXCEPT the Flodder's, including his own.
160* In ''Film/TheFreakmaker'', Prof. Nolter is killed by the one successful [[PlantPerson human/plant hybrid]] he manages to create.
161* ''Film/GetShorty'': Bo Catlett imagines how easy it would be to kill Chili if he just had Bear loosen some of the screws on the railing of his deck, which overlooked a cliff. When the eventual showdown happens at Cat's place, he's surprised to learn Bear actually did loosen them.
162* ''Film/GhostRider2007'': Ghost Rider's Penance Stare allows him to burn the pain of all the people someone has hurt into that person's soul. The film's villain, a demon, has no soul and is thus immune. Near the end, he takes on the power of 1000 evil human souls to start the apocalypse, which removes his immunity and allows Ghost Rider to destroy him forever.
163* ''Franchise/GIJoe'':
164** More of a "Hoist By '''Their''' Own Petard" version in ''Film/GIJoeTheRiseOfCobra''; Duke activates the tracking beacon so the Joes can find Destro's base, just like Destro did so the Baroness' strike team could find the pit.
165** In ''Film/GIJoeRetaliation'', Firefly is killed by one of his own bug bombs, courtesy of Roadblock.
166* ''Franchise/{{Godzilla}}'':
167** At the climax of ''Film/GodzillaMothraKingGhidorahGiantMonstersAllOutAttack'', Godzilla explodes after his own nuclear breath backfires and instead tears him open from the inside out. Somewhat a subverted example in that Godzilla isn't killed but instead reduced to a disembodied yet still-beating heart.
168** In ''Film/GodzillaFinalWars'', Gigan battles Mothra with a host of new weapons, one of which are two razor sharp discs that launch out of his chest. When Mothra is able to dodge these, Gigan shoots lasers at Mothra before turning around to perform a victory pose. Right before the two discs from before come back around and slice his head off.
169* In ''Film/LaHabanera'', Don Pedro has worked to cover up the outbreak of fever on Puerto Rico in order to avoid damaging commerce on the island. Unfortunately for him he falls ill of the fever. Dr. Nagel has an antitoxin that could save his life, but Don Pedro's goons busted up his lab and destroyed his antitoxin. So Don Pedro dies.
170* In ''Film/{{Hannibal}}'', Mason Verger is eaten by the killer pigs he had been training to eat Hannibal Lecter. There's even a bit of TheDogBitesBack added in for good measure.
171-->'''Hannibal:''' Hey, Cordell... why don't you push him in? You can always say it was me.
172* In ''Film/HappyGilmore'', snobby golf pro Shooter [=McGavin=] is highly offended by Happy's coarse, unprofessional attitude to golf (and the threat he poses to the attention and awards Shooter believes are rightfully his) and ends up going to all kinds of lengths to undermine or sabotage Happy. Thing is, Happy initially makes no secret of his disdain for golf and is only playing in the first place to raise some quick money, but becomes so antagonised by Shooter that he decides to add "kick Shooter's ass" to his list of things to do. Shooter ends up losing the tour to Happy, whereas if he'd just bitten his tongue and waited Happy would have likely quit well before it came to that point.
173* ''Film/HarryPotterAndTheDeathlyHallowsPart2'' has one involving Snape. He invented Sectumsempra, a spell used for emulating the effect of a sword. Guess exactly which throat Voldemort slices with it? (In the book, Nagini is used instead.)
174* ''Franchise/{{Hellboy}}'' films:
175** Kroenen dies in ''Film/Hellboy2004'' in his own spike pit. Also, Hellboy crushed him with his own giant gear.
176** In ''Film/HellBoyIITheGoldenArmy'', Mr. Wink dies after launching his RocketPunch into a griding machine. Hellboy even states before "I wouldn't do that" and after that happened "Whoa. Told ya."
177* In ''Film/HolmesAndWatson'', Mrs Hudson is killed when Watson throws the bomb intended to kill Queen Victoria off the Titanic, and it lands in the rowboat they are in.
178* The film ''Film/HomewardBoundTheIncredibleJourney'' features Chance and Shadow, two dogs, swimming across a shallow part of a river. The cat named Sassy, who refuses to get wet at all, tries to cross a makeshift bridge of logs, branches, and rocks in the rapids. The branch breaks, sending Sassy into the rapids, and eventually, over a waterfall. She survives. By the end of the journey, she seems to have learned her lesson.
179* In ''Film/{{House}}'', the BigBad holds Roger's freshly-rescued son hostage to try to get Roger to kill himself. Roger's desire to protect his son -- which had been driving him the entire movie -- overrides his fear and he charges the BigBad... which is when Roger and the audience realize that said Big Bad spent nearly the entire movie trying to scare Roger out of his wits because he's ''powered by fear'' and can't hurt Roger now that he's no longer scared of him. Cue OhCrap covered by ineffectual threats from BigBad, followed by very short CurbStompBattle.
180* ''Film/HowToBlowUpAPipeline'': Narrowly {{subverted}}. Michael nearly blows himself up with a bomb he's making by accident. It's mentioned to be something that happens frequently when people make bombs.
181* In ''Film/TheHuntForRedOctober'', Captain Tupelov had all the safeties on the torpedoes aboard the ''Konovalov'' disabled after the first attempt to destroy the ''Red October'' failed when Captain Ramius turned towards the torpedo and made it impact before it could arm. Tupelov orders a second torpedo launched, but some slick maneuvering by both the ''Dallas'' and ''Red October'' gets the torpedo turned back around and locked onto the ''Konovalov''.
182-->'''Konovalov Crewman:''' (''Immediately after the ''Red October'' pulls off a WronskiFeint with the torpedo'') Torpedo, dead ahead!\
183'''Bonovia:''' You arrogant ass! You've killed us!\
184(Konovalov ''explodes'')
185* In ''Film/ImGonnaGitYouSucka'', Issac Hayes' character decides to load up on guns, shoving them into every nook and cranny he can find on his person. As he heads out, he slips on some dropped bullets and he's promptly shot to death by his own guns.
186* Steve Gray the antagonist of ''Film/TheIncredibleBurtWonderstone'' is a particularly extreme example in that the heroes have nothing whatsover to do with his downfall. He instead manages to give himself ''permanent'' brain damage doing an idiotic trick (drilling into his skull live on stage.)
187* Repeatedly in the ''Franchise/IndianaJones'' films. Typically, the BigBad meets his end by the very Macguffin he sought to exploit.
188** In ''Film/RaidersOfTheLostArk'', Belloq is an immoral French archeologist who typically steals whatever treasure Indiana finds, and is working with the Nazis to get to the Ark of the Covenant. He believes said Ark could be used to contact God directly, and arranges a Jewish ceremony to examine its contents before taking it to Germany. When the Ark is opened, God voices his displeasure by unleashing a horde of evil spirits that wipe out all of the villains, sparing only Indy and Marion because they kept their eyes closed (Indy having been forewarned earlier on). Thankfully, the spirits put the lid of the Ark back on after they're done.
189** In ''Film/IndianaJonesAndTheLastCrusade'', Donovan is a wealthy and amoral American socialite obsessed with living forever [[PiggybackingOnHitler even if it means shaking hands with Nazis]]. His words to Indy are to "not trust anyone". When he reaches the finish line, he is in a room with hundreds of grails and has no idea what the Grail might look like, so he trusts Nazi archeologist Elsa Schneider to pick the real one for him. She gives him the wrong one to dispose of him, and he dies a NightmareFuel death by [[RapidAging aging centuries in a matter of seconds]].
190** In ''Film/IndianaJonesAndTheKingdomOfTheCrystalSkull'', Irina Spalko is a Soviet scientist driven to further her mind. At the end, she reaches the Crystal Skull's creators and demands all of their knowledge. Unfortunately for her, the creators are extradimensional aliens who possess far more knowledge than any human could handle, ''and'' they beam it into her brain via telepathy. Brilliant as she is, Spalko can't handle the overload and her brain- along with the rest of her body- disintegrates.
191* ''Film/InglouriousBasterds'': The Nazis were trapped in a theater and burned - gunned down if they tried to escape - [[http://en.wikipedia.org/wiki/Burning_of_the_Riga_synagogues just like they had done to Jews in synagogues]]. ''Basterds'' being a revenge movie, this was the entire point.
192* ''Film/JamesBond'': This is the general fate of Bond's adversaries. In fact, if TheDragon in any film is ''not'' killed by being HoistByHisOwnPetard, chances are that they're not really dead. Some examples:
193** In ''Film/DrNo'', the eponymous villain dies when he falls into the cooling pool of his nuclear reactor and his [[ArtificialLimbs metal hands]] make it impossible for him to climb to safety. Admittedly, he would have even more of a hard time without any hands at all. On the other hand, he lost his hands from his work with nuclear reactors in the first place.
194** In ''Film/{{Goldfinger}}'', Oddjob is [[HighVoltageDeath electrocuted]] through his [[WeaponizedHeadgear steel-bladed hat]], while Goldfinger himself is [[ExplosiveDecompression sucked out of his own depressurizing jet]] (also qualifies as an IWarnedYou, as Bond tells him how dangerous firing a gun on a plane is).
195** Bonus points in ''Film/DiamondsAreForever'' when Bond hoists Mr. Wint with his own petard by sticking it onto him and throwing him into the drink. He's blown sky-high before he hits the water. His boyfriend and partner-in-crime Mr. Kidd is the victim of a two-fer -- not only is he burned alive when Tiffany Case splashes him with a claret as he approaches Bond with flaming shish-kabobs, earlier in the film, he ''himself'' tries to burn Bond alive (with the assistance of Mr. Wint).
196** In ''Film/LiveAndLetDie'', Baron Samedi is knocked into the casket full of poisonous snakes into which he intends to sacrifice Solitaire.
197** In TheTeaser of ''Film/ForYourEyesOnly'', the [[LawyerFriendlyCameo unnamed Blofeld]] is thrown into the exact same smokestack he planned to have 007 put into -- with the exact same helicopter, no less.
198** In ''Film/{{Octopussy}}'', Bond kills a knife-throwing assassin by throwing one of the knives back at him.
199** In ''Film/AViewToAKill'', Mortner is blown up by his own dynamite.
200** In ''Film/GoldenEye'', Trevelyan is crushed by his own evil satellite dish.
201** In ''Film/TomorrowNeverDies'', Carver is shredded by his own giant drill.
202** In ''Film/TheWorldIsNotEnough'', Renard is skewered by a rod of plutonium with which he is trying to blow up a submarine.
203** In ''Film/CasinoRoyale2006'', the terrorist who tries to blow up a plane via remote detonator, only to find that Bond [[WhyAmITicking clipped the bomb to his belt]] while they were grappling.
204* In ''Film/JesseJamesMeetsFrankensteinsDaughter'', Maria Frankenstein sends Igor to kill Juanita. However, when Igor sees Juanita pleading for her life, he remembers that she was kind to him when he was still Hank, and he manages to shake off Maria's MindControl long enough to turn on her. Maria is still maniacally shouting "Kill! Kill!" as she realises Hank is wrapping his hands around her throat.
205* ''Film/AJollyBadFellow'': After VillainProtagonist Bowles-Otterly murders Delia with a [[TaintedTobacco poisoned cigarette]], the police accuse him of the crime. He lights up a cigarette from the cigarette box in the sitting room, and points out that they have no evidence. It is only after he has taken a couple of puffs that he remembers that the cigarette box had been empty. When he asks his newly returned wife about it, she says that she saw the box was empty and refilled it with the cigarettes she found in his laboratory. With a look of horror, he realises that he is smoking one of his own poisoned cigarettes.
206* ''Film/TheJurassicDead'': Dr. Wojick Borge created an undead dinosaur, and tried to use it to kill the protagonists. Near the end, when he leaves his safe room, the dinosaur finds and eats him.
207* ''Franchise/JurassicPark'':
208** ''Film/JurassicPark'' uses this; create prehistoric monsters and there is a good chance they'll kill you. It is played better in [[Literature/JurassicPark the book]] and the dinosaurs aren't created as weapons but for entertainment, but it otherwise fits the trope.
209*** It especially fits for Nedry, as he turned dinosaurs loose by shutting down the fences' power to protect his escape, only to get eaten by one of them.
210** In ''Film/JurassicWorld'', Hoskins strongly believes that the raptors will be very desirable weapons once they manage to get them under control. Owen warns him against that, saying that they're wild beasts and even he can barely control them. He ends up getting killed by one of those said "weapons" near the end.
211* ''Film/{{Kafka}}'''s [[TortureTechnician torture technician]] is gruesomely killed by his own device.
212* In a truly tragic example of this happening to a hero, the title character of ''Film/TheKiller1989'' loses both of his eyes as he is fatally gunned down by BigBad Wong Hoi, paying horribly for his accidental blinding of Jenny, the beautiful lounge singer who he was in love with, at the beginning of the movie.
213* ''Film/{{Killersaurus}}'': The CorruptCorporateExecutive funded Professor Peterson's research into [[https://en.wikipedia.org/wiki/3D_bioprinting bioprinting]] so he could use it to recreate a dinosaur for use in making Human-Dinosaur hybrid [[SuperSoldier Super Soldiers]]. When the Sargeant who accompanied him to the facility gets turned into one, his first action is killing the [=CEO=].
214* In ''Film/KingOfTheZombies'', Dr. Sangre is killed when he loses control of his zombies and they swarm him and drive him into the fire pit.
215* ''Film/KingsmanTheSecretService'':
216** Harry's attempt to spy on Valentine leads to the latter planting a tracker on the former, leading to the discovery of the tailor base and Valentine speaking and flipping Arthur to his side. Which leads to Valentine buying a bugged top-hat, thus revealing his plan. Which leads to Harry investigating the church, which gets him shot in the head. Which leads to the Kingsmen learning Valentine's plan. Which leads to...
217** Arthur trying to kill Eggsy with a poisoned glass of brandy, Eggsy pulls a PoisonChaliceSwitcheroo. Also his unsuccessful co-opting of Eggsy and also enables Eggsy and Merlin to interfere with the plan by infiltrating Valentine's base and stopping it themselves.
218** The explosive chip that Valentine uses to keep his army under control is used by Merlin to wipe them out.
219** In the end, Valentine is killed by the bladed prosthetic leg of Gazelle, his most trusted henchman.
220* ''Film/KnivesOut'': Ransom's decision to covertly hire renowned private eye Benoit Blanc in order to prove that Harlan Thrombey's death was suspicious ultimately leads to him being exposed as the villain.
221* In ''Film/{{Labyrinth}}'', upon ending up in a garbage dump outside the Goblin City, Sarah is distracted for a while by a mock-up of her bedroom back home, leading her to believe the adventure was all just a dream. Even after the lady from the dump barges inside, she's still content to sit and idle for a while with her dolls and toys. But the facsimile is too perfect; it also included a copy of her play, which reminded her about her mission to save Toby.
222* Rather literal in ''Film/LawAbidingCitizen''. Clyde is about to activate the bomb he set up in city hall. Nick tries to talk him out of it. He activates it anyway, and Nick leaves him in his cell and locks the door as Clyde realizes the bomb is now in the cell with him. He accepts having finally been outplayed and sits on the bomb as it goes off.
223* Subverted in ''Film/LChangeTheWorld'', in that K is perfectly willing to die from the virus she created so long as it achieves her goal of ridding the world of humanity. L doesn't let her.
224* The BigBad in ''Film/LethalWeapon3'' is an ex-cop who sells "cop killer" armor-piercing bullets. During the final confrontation, the villain tries to run Riggs down in a bulldozer while using the metal blade to shield himself in the cab, but Murtaugh loads some "cop killers" into a sub-machine gun and tosses it to Riggs, who uses them to shoot through the blade and take out the villain.
225* ''Film/TheLordOfTheRings''
226** The director's cut of ''[[Film/TheLordOfTheRingsTheTwoTowers The Two Towers]]'' gives us a straight example: the dam that Ents break to flood Isengard was recently constructed by Saruman to speed up weapon production. It was also said production that made felling that many trees necessary, giving the Ents a reason to attack in the first place.
227** There's also one in ''[[Film/TheLordOfTheRingsTheReturnOfTheKing The Return of the King]],'' near the very end of it. The Ring's final defense is irresistible allure, ensuring that even if it reaches Mt. Doom's flames, the only place on Middle Earth where it can be destroyed, its bearer will bend to its will and keep it. However, this becomes its downfall when after Frodo reaches Mt. Doom and succumbs to the Ring's power, Gollum, who the Ring had possessed and brainwashed for centuries and who had followed the Hobbits all the way there, fights furiously with Frodo to get the Ring back. He wins, but their fight pushes them both over the cliff, and while Frodo manages to hang on, Gollum clings only to the ring as he falls into the lava, sealing Sauron's fate.
228* In ''Film/TheMadMagician'', Gallico falls victim to the [[MurderByCremation crematorium he tries to feed Lt. Bruce into]].
229* ''Franchise/MarvelCinematicUniverse'':
230** Nearly occurs in ''Film/IronMan1'', where the shrapnel that forces Tony Stark to wear his electromagnet comes from a Stark Industries missile used by terrorists. Obadiah Stane's Iron Monger suit was also reverse-engineered from the remains of Tony's first suit.
231*** Stane being killed by the same device he decried as useful only for "publicity."
232** In ''Film/IronMan2'', lots of Hammeroids get blasted out of the air by fire from their own. Also defied, according to the novelisation, as Ivan Vanko specifically constructs his armour so that in case of a mishap (which incidentally doesn't happen) he won't cut himself with his whips.
233** In ''Film/TheAvengers2012'', [[BigBad Loki]]'s sceptre, has, unknown to Loki himself, been turned into the kill-switch for the portal spewing his army of [[ZergRush Chitauri]] above Manhattan.
234** Aldritch Killian infusing Pepper with Extremis in ''Film/IronMan3'' ultimately allows her to survive the long trip down he sent her on and ultimately blow him away for good.
235** In ''Film/AvengersInfinityWar'', Corvus Glaive gets stabbed in the back with his own spear. For extra irony, his killer was the Vision, whom Glaive had impaled in a similar manner earlier in the movie.
236** ''Film/AvengersEndgame'': Thanos meets his final demise this way. In Infinity War, Thanos had Eitri build him a device that could harness the power of the 6 infinity stones, enter the Infinity Gauntlet. Thanos then uses this weapon to wipe out half the universe and defeat all the heroes in said movie, before destroying the stones. However, after the heroes go back in time to retrieve the stones and undo his work, the final battle commences, where the gauntlet (or more specifically, a copy designed by Iron Man that mimicked the original he had made) is used to permanently defeat him and his entire army. Using the same BadassFingersnap that Thanos used to kill half the universe, no less!
237* In any given Creator/MarxBrothers film, any dialogue between the two resident {{Pungeon Master}}s was likely to end with the quick-witted Chico getting the better of the exasperated Groucho by turning his own wordplay against him.
238* At one point during the mud fight from ''Film/McLintock'', Katie decides to stick one of the feathers from her hat into G. W.'s rear. This causes him to swing his arms back in pain, accidentally shoving her down into the mud pool.
239* In ''Film/MediumRawNightOfTheWolf'', the Wolf removes his armor, and his knife gloves, to climb into a vent and grab the girl. This allows Johnny to grab the gloves, and stab him several times, killing him.
240* In ''Film/MirrorMirror'', Snow White tricks the Queen into eating her own poisoned apple.
241* In ''Film/MissionImpossible1996'', Jim Phelps' demise comes when his escape helicopter is blown up with explosive chewing gum that belonged to Jack Harmon, who Jim had killed earlier in the film.
242* Towards the end of ''Film/MissPettigrewLivesForADay'', the bitchy GoldDigger fashion boutique owner Edythe comes across Miss Pettigrew and her wealthy fiance Joe having a serious conversation and accuses Miss Pettigrew of spilling the beans about Edythe's numerous affairs, which Miss Pettigrew had previously stumbled across. Except that Miss Pettigrew and Joe were ''actually'' having a conversation about World War One and [[ItMakesSenseInContext gentleman's socks]], and in spitefully outing Miss Pettigrew as an indigent nanny rather than a social secretary, she accidentally reveals her own adultery to Joe, who ends up ditching her for Miss Pettigrew. Whoops.
243* Lampshaded in the 1969 farce ''Film/MonteCarloOrBust'' (known in the U.S. as ''Those Daring Young Men In Their Jaunty Jalopies''). The unscrupulous Sir Cuthbert (Creator/TerryThomas) has several fiendish schemes backfire on him rather nastily. At one point his put-upon henchman Perkins (Creator/EricSykes) turns to him and says "Hoist with your own petard! Well, it serves you jolly well right."
244* The bridgekeeper in ''Film/MontyPythonAndTheHolyGrail'' asks three questions of any who attempt to cross, and those who fail to answer are magically thrown off the bridge to their deaths. When Arthur responds to the third question with another question, the bridgekeeper fails to answer it, and gets hurtled off the bridge himself.
245--> '''Bridgekeeper:''' What is the average airspeed velocity of an unladen swallow?\
246'''King Arthur:''' What do you mean, an African or a European swallow?\
247'''Bridgekeeper:''' Huh? ...I don't know that. AAAAAAGGHHHH!!!!
248* The high priest in ''Film/MontyPythonsLifeOfBrian''; after sentencing a man to death by stoning, the victim only makes the rabid crowd angrier by pleading his case, and they ''really'' want to let him have it. However, said high priest won't let them until he finishes reading the accusation, and learns the hard way what happens to someone [[TooDumbToLive who threatens and insults an angry mob carrying rocks.]]
249* In ''Film/MortalEngines'', after murdering the city control crew and setting London for a collision course with the Shield Wall and then making an escape by airship, Thaddeus ends up crashing in front of London's tracts and is crushed to death.
250* Several of the antagonist fighters in ''Film/MortalKombatTheMovie'' are killed off by something of their own.
251** Johnny Cage kills Scorpion with a spear and shield from several of Scorpion's previous victims, with the saw-bladed shield being used to absorb a flame attack from Scorpion and then used to slice off part of his skull and set him on fire.
252** When Liu Kang is fighting Sub-Zero, Sub ends up creating an ice field that would freeze anyone who passes through it. Liu Kang finds a bucket of water (the "element which brings life") and launches the water at Sub-Zero's ice field. The ice ninja is promptly impaled by the resulting ''large icicle'' that is formed, pinned to a large gargoyle statue and frozen to death.
253** In the final fight between Liu Kang and Shang Tsung, Shang ends up raising a set of spikes from the floor, intending to send Liu onto them. Liu turns things around and combos him right into the spikes.
254* In ''Film/MuppetTreasureIsland'', the first step of Silver's planned mutiny is convincing First Mate Mr Arrow to leave the ship in a leaky lifeboat, causing the rest of the crew to assume he drowned. When the plan fails and Silver winds up in the brig, he escapes and flees the ship... in a lifeboat which later turns out to be incredibly leaky.
255* ''Film/MurphysWar'': A two-pronged example occurs in the finale. Murphy kills the Nazis aboard the trapped submarine by picking up a live torpedo that they unsuccessfully fired at his boat with the boat's crane and dropping it on the submarine. However, the explosion also sinks the barge and traps Murphy, who drowns as well.
256* In ''Film/TheNakedWitch'', the witch dies when she is knocked back into her open grave, and lands on top of the stake she was attempting to kill Kirska with: impaling herself.
257* ''Film/TheNeanderthalMan'': The eponymous MadScientist is attacked by a saber-toothed tiger created by one of his experiments, giving a sheriff's posse time to shoot him.
258* ''Film/NoEscape1994'': The Warden is left on Absolom with the Outsiders closing in on him and King... cut to black, roll credits.
259* ''Film/NoGodNoMaster'': Some of the anarchists' bombmakers accidentally blow themselves up [[TooDumbToLive with live dynamite set on the table near them]].
260* ''Film/{{Nope}}'': Jean Jacket appears to kill ingested prey by a process which involves extreme pressure within its body, judging by the horrifying crunching sounds we hear, followed by a RainOfBlood. This ends up killing Jean Jacket at the end when it tries to do the same to a giant helium balloon, turning the balloon into a pressurized air bomb that blows the alien up when it pops.
261* In ''Film/Oceans11'', Danny Ocean's team decides to hide the stolen cash in Bergdorf's coffin. The plan was to wait until it was shipped to San Francisco for the funeral and buried, after which they would retrieve the money. This went quite wrong when his widow, who had not been informed of this, decides to have the funeral there in Las Vegas... [[GoneHorriblyWrong and the money then gets burned with him]].
262* In ''Film/OnceUponASpy'', Chenault and Dr. Webster defeat Valorium by reprogramming his ShrinkRay so it bounces back off the sattelite directly on to his observatory headquarters.
263* This happens to Randall in ''Film/OneFlewOverTheCuckoosNest'' where, in the beginning, he successfully bullshits an InsanityDefense and gets sent from prison to a mental hospital, expecting the hospital to be a much cushier place than prison. However, not only did he fail to realize the mental hospital is a horrible place run by the ''the'' {{Trope Mak|ers}}ing BattleaxeNurse Ratched, but his remaining sentence time now means nothing. He was free from prison in a few months, but he's stuck in that hellish BedlamHouse under Ratched's thumb until she arbitrarily decides he's "no longer a threat to himself or others" which could very easily mean an indefinite stay. Had he just stayed in prison he'd have been free to go with minimal fuss, rather than imprisoned indefinitely and eventually ''lobotomized''.
264* ''Film/OperationFortuneRuseDeGuerre'': When Mike's goons attempt to taser Orson, he beats them and uses the taser on them.
265* ''Film/PacificHeights'':
266** Carter Hayes' own tactics are used against him by Patty; his habit of assuming the identity of his last victim is what allows Patty to send him into financial meltdown and get him arrested.
267** In the climax, Hayes is ImpaledWithExtremePrejudice on gas pipes protruding from the floor -- protruding because he himself stole the appliance they were attached to.
268* In ''Film/PatrickStillLives'', Dr. Herschel tells Patrick to kill Lydia, but he refuses, so Dr. Herschel decides to do it himself using a poison syringe. Patrick then uses his [[PsychicPowers powers]] to force the doctor to inject himself with the poison.
269* In ''Film/ThePelicanBrief'', a hitman who had previously planted a car bomb rigs another car in a second attempt to kill the heroine. Luckily, when the car has engine trouble, she recognizes the sound from the previous incident and gets out of the car to flee. The villain attempts to run her down in his own car, but loses control and crashes. Ironically, the impact alone would probably have been enough to kill him, but the car he crashed into? ''The very one that he rigged to explode''. KABOOM.
270* Subverted in ''Film/PhantasmII'' when Mike uses one of the Tall Man's own flying spheres against him. It only makes him spurt yellow blood, and he crushes the sphere with his bare hand before throwing it away.
271* ''Franchise/ThePinkPanther'':
272** In ''Film/ThePinkPantherStrikesAgain'', Former Chief Inspector Dreyfus is killed when his Bavarian castle is disintegrated by his own doomsday weapon. It was supposed to be fired at England, but Clouseau hoist himself into the castle with a conveniently placed catapult. He proceeds to land on the doomsday machine, causing it to swivel around and hit Dreyfus instead, who has his legs disintegrated. Then the doomsday device overloads and starts to dissolve the rest of the castle. The last thing we see of Dreyfus is him slowly vanishing while playing the organ that any self-respecting villain must have in his Bavarian castle hideout.
273** Dreyfus [[UnexplainedRecovery comes back]] in time for ''Film/RevengeOfThePinkPanther''.
274* In ''Film/PiratesOfTheCaribbeanAtWorldsEnd'', Barbossa not only cites the code at the gathering of the Brethren Court, but calls on Captain Teague to enforce it, all to avoid fighting Beckett. Jack's motion for the Court to fight won't be entertained because only the elected Pirate King can declare war, and there's no King because only the Pirate Lords can elect one and each Lord only ever votes for themselves. So Jack calls for an election, lets everyone else vote for themselves, then throws his support behind Elisabeth, who's gung-ho for bringing war on Beckett. Now Barbossa ''has to'' go to fight Beckett, since he not only cited the rule that says Elizabeth can declare war, but called on Teague as well. He's got a better chance of surviving a war than a fight with Teague.
275* Towards the end of ''Film/{{Popeye}}'', Bluto, who is already winning the fight against Popeye, decides to rub it in by shoving spinach down Popeye's throat [[note]]Yes, in this adaptation Popeye ''hates'' spinach, as he did in the original comics actually[[/note]]. The spinach gives Popeye the strength to win the fight.
276* ''Film/Prey2022'':
277** Several of the French trappers are taken out by their own traps and weapons when the Predator turns the tables on them in their ambush, such as one who's killed when the Predator throws a bear trap at his head, or another two who are killed with one of their own axes.
278** Naru ends up turning the Predator's weapons against it in the final duel, first severing the alien's left arm by using its own spear to shove its razor-sharp wrist-mounted shield into it, and then goading it into using its laser-guided spears, the Predator realizing too late that she had set the spears to curve right back [[BoomHeadShot at its own face]].
279* ''Film/ThePrincess2022'': Moira uses her whip to nearly strangle the princess and Linh. In the end, she's hung with it by the princess after overpowering her.
280* In ''Film/PrinceValiant1997'', Morgan le Fay tries to blow sleep dust into Princess Ilene, but Ilene sneezes, which blows the dust back at Morgan. She gets drowsy and falls to her death. Later, Ilene knocks a mook who was wielding a primitive flamethrower into a vat of oil, with predictable results.
281* ''Film/ThePurgeUniverse'':
282** In ''Film/ThePurgeElectionYear'', the pro-[[ThePurge purge]] government removes a restriction protecting the upper class from the 12 hour purge in order to assasinate an anti-purge presidential candidate. Instead, the [[LaResistance anti-purge resistance]] not only manages to protect the anti-purge candidate, but also kill off many high ranking members of the pro-purge party, including their presidential candidate, allowing the anti-purge candidate to become president.
283** ''Film/TheForeverPurge'' ultimately sees the pro-purge government destroyed after they opt to reinstate the Purge and the more radical groups decide to keep going.
284* The unspoken reason for Rotti Largo's terminal illness in ''Film/RepoTheGeneticOpera''? Exposure to the same poison that he used to kill Marnie Wallace.
285* ''Film/ReignOfFire'': The male dragon is killed with an exploding magnesium crossbow bolt fired just as he's igniting his flames, which thus chars him from the inside out.
286* ''Film/ResidentEvilFilmSeries'':
287** In ''Film/ResidentEvilAfterlife'', Albert Wesker escapes from the ship in a helicopter, then triggers the ship's self-destruct device, only to find that Alice found the bomb earlier and stashed it on the helicopter.
288** During the climax of ''Film/ResidentEvilTheFinalChapter'', [[TrueFinalBoss Dr. Issacs]] is KilledOffForReal by his own clone, who is himself then subsequently DevouredByTheHorde of zombies he'd been bearing down on Alice but apparently forgot about due to the confrontation.
289* ''Film/TheRetreat2021'': Gavin murders Connor with an axe. James then does the same with Scotty. Later on James gets it in the head himself from Val.
290* In ''Film/RingOfFear'', psychopath Dublin O'Malley turns loose the half-wild tiger that he has been tormenting throughout the movie as his final act of vengeance on the circus as he makes his escape. He then hides in an empty boxcar on a freight train. However, lion tamer Clyde Beatty drives the tiger into the boxcar to corral it, and then shuts and locks the door. It is only as the train starts pulling out that they hear the growls of the tiger and O'Malley's screams and realise what has happened.
291* ''Film/RioLobo'': Twice in the climax. One {{Mook}} is possibly blown up by his own dynamite after being wounded as he threw it, causing it to fall short and Hendricks is badly injured by shrapnel when his gun barrel explodes due to being lodged with dirt (he was using it as a walking stick after being shot in the leg) right before he fired it.
292* ''Film/RiseOfTheScarecrows'': [[SmallTownTyrant Sheriff Howard]] has been sending people to their deaths in the woods at the hands of a trio of killer ScaryScarecrows for years. In the end, he's ultimately killed by said killer scarecrows.
293* ''Franchise/RoboCop'':
294** ''Film/RoboCop1987'': "Dick, you're FIRED!". Robocop had a fourth hidden directive that prevented him from arresting any senior member of OCP. The one who put it in there, Dick Jones, was also the guy who helped supply the guys who killed Murphy, the man who became Robocop. First time he confronts Dick, it activates, leaving Robocop helpless. The second time, Dick makes the mistake of holding the Old Man hostage, who fires Dick. The rest is history.
295** In ''Film/RoboCop2'', Dr. Faxx shuts off Cain's life support and uses his brain to create Robocop 2. Later, Cain goes on a rampage when OCP unveils him, and Faxx becomes OCP's scapegoat. Cain himself is defeated when Lewis offers him a canister of his own drug Nuke, and Robocop takes advantage of the distraction to kill Cain.
296* In the film ''Robot Overlords'', the titular robots are defeated when they attempt to torture a human teen who had already managed to shut down the implant the robots use to monitor humans, the modified implant eventually allowing the teen to control some of the robots, [[spoiler:culminating in him hacking the entire robot network through a command interface and setting the robot army to self-destruct]]. On a more personal level, Robin Smythe, the main face of the human collaborators in the film, [[spoiler:is subsequently killed by a robot after the resistance disable the local robot networks, resulting in Smythe being killed for breaking the humans’ curfew because the part of the network aware of Smythe’s identity as a collaborator had been shut down]].
297* In ''Film/TheRunningMan'', three of the Stalkers are killed with their own weapons:
298** Ben Richards slices Buzzsaw down the middle from [[GroinAttack bottom]] to top with his chainsaw.
299** Richards severs the connection from Fireball's flamethrower to its gas tank and uses a flare to ignite the fuel.
300** Amber sets off a sprinkler in the ceiling by shooting it during a struggle with Dynamo, causing it to go off and electrocute him.
301** There's an element of this in Sub Zero's death as well. Richards turns the momentum Sub Zero is able to achieve with his skates into a liability by having him run into barbed wire which Richards then uses as a garotte.
302* ''Film/SalvationBoulevard'': Jerry tries to set Carl on fire by using a taser, which ends up instead doing that to him and the dirty cop who helped him accidentally.
303* In ''Film/SatansCheerleaders'', Patti mockingly explains to Sheriff Bubb that he ruined his own VirginSacrifice when he raped the cheer coach Ms. Johnson, as she was the only 'unsoiled maiden' on the team. His demonic masters are not happy with this.
304* In ''Film/SavingPrivateRyan'', an American paratrooper trying to affix an improvised explosive to a Tiger tank lights the fuse too early. It detonates in his face and blasts the poor bastard to kingdom come. Adding insult to injury, the Tiger emerges relatively unscathed.
305* Done with literal hoisting in ''Film/Saw3D''. Bobby Dagen is a bestselling author who became famous for writing a book about how he survived a Jigsaw trap. He had to reach a high place, and the only way up there was to dig a pair of meathooks into his chest and hoist himself up. The thing is, his entire book is a load of shit. He was never in a Jigsaw trap. He made the whole thing up. Jigsaw saw fit to correct this and placed him in a series of traps, with the final one being the one he had "survived" before. It turns out to be impossible to complete in the way he described in his book, and he fails. However, astute viewers will notice that the hooks were so large he could have either tucked them under his arms or used them as footholds, and hoisted himself up rather easily that way, no self-mutilation required. In all likelihood Jigsaw probably did this on purpose just to see if Bobby was smart enough to recognize the flaws in his trap design.
306* In ''Film/ScannersIITheNewOrder'', David and Julie kill the corrupt Dr. Morse with a massive overdose of his own drug to pay him back for destroying Julie's boyfriend Walter and numerous other psychics.
307* In ''Film/SheWolfOfLondon'', Martha dies on her own knife when she falls down the stairs while chasing the maid Hannah, who heard Martha telling her plan to Phyllis, whom she has been {{Gaslighting}} throughout the film.
308* ''Film/ShockingDark'': In the process of intentionally polluting UsefulNotes/{{Venice}}, the [[MegaCorp Tubular Corporation]]'s underground complex was overrun by their own creations, and the complex's employees were either killed or transformed into machines.
309* ''Film/ShootOutAtMedicineBend'': After knocking Devlin off the mezzanine, Clark has him dead to rights as he is lying on the floor stunned. Clark grabs a rifle and attempts to finish Devlin off. However, in his haste, he loads the rifle with the same defective shells he sold Devlin's brother, and which caused the brother's death. Devlin explains this as he gets up as Clark keeps jerking the trigger with nothing happening.
310* In ''Film/SilverLode'', [=McCarty=] dies when a bullet he fires at Ballard ricochets off the church bell and strikes him in the heart instead.
311* In ''Film/SkyHigh2005'', there is Ethan's ever-so-glorious revenge on Lash. [[TheBully Lash and Speed]] regularly give Ethan {{swirlie}}s, but during the final fight, when the two bullies are revealed to be part of [[BigBad Royal Pain's]] evil plan, Lash chases Ethan [[SearchingTheStalls into the boys' bathroom, and when he finally finds his stall]], he thinks he flushed himself, but then, Lash is surprise-attacked by Ethan from behind and has his head kicked into the toilet, where he receives the ultimate swirlie.
312* In ''Film/Snapshot1979'', [[spoiler:Elmer]] is [[ManOnFire set alight]] by the can of fuel and fire he was using to threaten Angela.
313* ''Film/SodomAndGomorrah'':
314** Hebrew traitor Melchior leads a group of saboteurs to smash the pipelines sending oil to the wall of fire Lot and the Hebrews are using to cut off the Elamites, causing the fire to go out. But the burning oil pools on the sand, and as Ishmael chases after Melchior, the latter falls into the pool of oil and burns to death.
315** During the final destruction of Sodom and Gomorrah, two children are sheltering in a doorway from the collapsing buildings. A cackling man pulls them into the street and shelters in the doorway himself. Seconds later, it collapses on top of him and kills him.
316* In ''Film/SpiderMan1'', the Green Goblin is stabbed in the chest by his own glider after trying to use it to kill Spider-Man (he [[SpiderSense senses it]], and quickly gets out of the way). This leads Harry to believe that Spider-Man killed his father.
317* In ''Film/{{Spotlight}}'', the diocese files a court motion which allows Garabedian to file an opposition brief to which he attaches all the documents the reporters have been seeking which prove Cardinal Law was aware of sexual abuse by certain priests years before and did nothing to prevent it, putting them in the public record.
318* ''Franchise/StargateVerse'':
319** In ''Film/{{Stargate}}'', the heroes are ''nearly'' hoisted by their own Nuke, which has been been augmented by Ra, and rigged so it can't be disabled. Then they send the bomb back to Ra...
320** In ''Film/StargateTheArkOfTruth'', IOA Agent James Marrick recreates a Replicator, hoping to use it as a weapon against the Ori, much to the dismay of SG-1. He is later consumed by the Replicators and turned into a MeatPuppet.
321* ''Franchise/StarTrek'':
322** In ''Film/StarTrekIITheWrathOfKhan'', Khan's done in by his "superior intellect". As his right hand man Joachim pointed out, they had the Genesis Device and they could have done anything they wanted to with it. However, his thirst for revenge causes him to take every advantage he had (a spaceship in the form of the ''Reliant'' and the Genesis Device itself) and turn it against Kirk, ultimately leading to his death.
323** In ''Film/StarTrekNemesis'', the Romulans create a clone of Captain Picard for a KillAndReplace gambit, only to have their tool [[TheCoup kill and replace the Romulan Senate]], making this a case of [[{{Pun}} Hoist by Their Own Picard]].
324** In ''Film/StarTrekBeyond'', Krall is killed by the very life-absorbing device he plotted to use on the ''Yorktown''.
325* ''Franchise/StarWars'':
326** Palpatine to a degree that verges on being a PlotHole. On a small scale, ''he'' is the one who shapes Anakin into Darth Vader, who eventually overthrows him. On a much larger scale, he is able to completely take control of the galaxy in the prequel trilogy... And then, apparently unable to quit while he's ahead, launches an unnecessary [[ThePurge genocide]] upon the Jedi, thus permanently turning the few surviving Jedi against him and triggering an epic chain of events that would eventually culminate in his being overthrown (if the title "Revenge of the Sith" is any indication, [[RevengeBeforeReason he did this mainly to settle an old score between the Sith and the Jedi]]). While the Jedi were no fans of his even before ThePurge, they weren't much of a threat to him either, particularly in light of his being supreme ruler of TheRepublic. This is even coyly lampshaded in the [[Literature/RevengeOfTheSith novelization of Episode III]], where it's stated that the Jedi are actively searching for the BigBad, but don't consider Palpatine a suspect because ''he already rules the galaxy'', and thus would have literally nothing else to gain by getting up to any Sith-related shenanigans. In that same novel it's shown that Dooku had a much more [[PragmaticVillainy sensible plan]] to take over TheOrder (with himself as the new Grand Master) by using Anakin's influence to corrupt as many Jedi as possible, but Palpatine was too DrunkOnTheDarkSide to care about pragmatism.
327** {{Subverted}} by Dooku: during their last battle he tells Anakin: "I sense great fear in you, Skywalker. You have hate, you have anger-- but you don't use them"- and while Anakin ''immediately'' starts following his "advice" and [[CurbStompBattle beats him with ease]], ''it was actually the whole point'', as [[TheCorruption it was part of getting him to turn to the Dark Side]] and the only thing deviating from plan was Dooku underestimating him & losing. Then {{Double Subverted}} when Palpatine orders Anakin to finish him off in cold blood and Dooku realizes that [[YouHaveOutlivedYourUsefulness by losing that fight he's no more use for his master plan]]. Additionally, he knew from the beginning that Palpatine was grooming Anakin to join them but severed his hand anyway in their first fight to prove a point, and as a direct result of that it doesn't take a lot of convincing for Anakin to execute him.
328** Anakin himself fell into this in his [[YinYangClash duel with Obi-Wan]]. He was [[TheChosenOne the most powerful Jedi in the universe]] and strong enough to defeat even Sidious by himself according to WordOfGod, but still managed to snatch defeat from the jaws of victory due to being DrunkOnTheDarkSide and jumping into Obi-Wan's blade even after being ''told'' it would be a dumb idea. This is even [[DiscussedTrope discussed]] by Anakin's son Luke, who theorized that because the DarkSide is fueled by raw, destructive emotion Sith are prone to this (especially in combat) while Jedi control the Force through serenity and self-discipline and as a result can more clearly focus on their training, generally making them the better duelists.
329** Palpatine's plan to turn the Galactic Republic into TheEmpire required him to start the galactic scale Clone Wars against the Confederacy of Independent Systems, that he had Dooku create explicitly to justify his takeover, and then at the end of the Clone Wars he disbands the majority of the planetary security forces (local militias that under the Republic kept order in various sectors), phases out the Y-Wing bomber from the now Imperial Navy, and prevents the adoption of the high-performance R-22 interceptor. ''All of that'' would contribute to [[LaResistance the various rebel forces]] that would eventually form TheAlliance to Restore the Republic: former PSF weapons, ships and even ''uniforms'', plus Y-Wings stolen from scrapyards, would form their early equipment (to the point that Alderaan, one of the few worlds to maintain a PSF, [[BlatantLies can claim they're not supporting the growing Rebellion in spite of Rebel fleet troopers being caught using the same guns and uniforms]] because [[PlausibleDeniability said guns and uniforms were nearly ubiquitous among security forces]]), with the Y-Wing becoming a staple of the Rebellion by being just that good; after acquiring the R-22 schematics from the small neutral system that had bought them, the Alliance improved on them and created the formidable A-Wing; and many [[TheRemnant surviving Confederacy forces]] would end up joining them, with equipment from Separatist forces that had been destroyed or disbanded still ending up in Rebel hands.
330** ''Film/RogueOne'': Director Krennic spent two decades leading the construction of the Death Star in the pursuit of glory as its creator. He ends up dying on Scarif when Tarkin has the Death Star fire on the planet in a futile attempt to stop the rebels. For added [[LaserGuidedKarma karma]] Krennic is almost certainly hit ''directly'' by the weapon's firing beam as it aimed for the top of the communication tower where he was last seen.
331* ''Film/{{Stealth}}'':
332** A medic attempts to inject an initially unsuspecting Ben (Josh Lucas) with 'pain relief' medicine (actually poison). Ben politely refuses, but the medic's stubborn insistence clues Ben in that something is wrong and a struggle ensues. The medic ends up being stuck with the needle himself and dies, showing Ben what the medic was trying to do (not that it wasn't fairly obvious).
333** This moment in itself leads into Ben's commander being hoist by his own petard. In trying to cover his tracks by having Ben killed and failing, his duplicity is revealed to his superiors by Ben and he is relieved of command. Then he [[DrivenToSuicide takes a bullet]] rather than face court martial.
334* In the climax of ''Film/StrangeDays'', protagonist Lenny Nero, after getting stabbed in the back by his former best friend Max, ends up clinging for dear life to balcony railing 22 stories above the streets of Los Angeles, with Max dangling from his necktie hoping to take Lenny down with him. Lenny proceeds to ''pull the still-stuck knife out of his back'' and use it to cut his tie off, sending Max plummeting to his death.
335* In the short film ''Suckablood'', Tilly's WickedStepmother invokes the titular monster to scare her out of sucking her thumbs with the threat of the monster killing her. The Suckablood turns out to be more interested in killing the adults cruel enough to make the threat in the first place.
336* In ''Film/SuperMarioBros1993'', Mario and Luigi use Koopa's own de-evolution guns against him, turning him into a [[OneWingedAngel tyrannosaurus]]. Then they blast him a second time, turning him into primeval slime.
337* ''Film/SweeneyToddTheDemonBarberOfFleetStreet'' ends with the cannibal butcher Mrs. Lovett being thrown into the oven she used to bake Sweeney's victims into pies. Sweeney himself is killed with his own razor by Toby by means of SlashedThroat, the very same method he used to murder so many people.
338* ''Film/{{Swashbuckler}}'': When the lute player attempts to stab Lynch InTheBack, Jane trips him. He falls down the stairs and impales himself on his WolverineClaws.
339* ''Film/TalesFromTheHood2'': Dumass Beach is killed by the Robo-Patriot robot he intends to become America's police force when he detects him to be a clear and present danger to America's future.
340* ''Film/TankGirl'': Kesslee has a device that drains a person's blood from their body, killing them, and purifies it into drinkable water. He uses it to kill one of his subordinates, and at the end Tank Girl uses one to kill him.
341* ''Franchise/TeenageMutantNinjaTurtles'':
342** In ''Film/TeenageMutantNinjaTurtles1990'', after Shredder has the turtles on the ropes, Splinter unexpectedly appears and [[IKnowYourTrueName reveals Shredder's true identity as Oruku Saki]] and that Splinter himself was the rat that scarred Shredder's face many years ago. BlindedByRage, Shredder forgets the turtles and attacks Splinter in a rush, only for Splinter to basically flip him over the edge of the roof, suspended above the street and saved from death because Splinter is holding him up. Shredder makes a last attempt to kill Splinter, throwing a dagger at the rat... and in order to protect himself and catch the dagger, Splinter has to let go of Shredder, causing Shredder to fall to his (apparent) death.
343** In ''Film/TeenageMutantNinjaTurtlesIITheSecretOfTheOoze'', Shredder drinks the mutagen, [[OneWingedAngel becoming the massive Super Shredder]] and begins tearing through the support beams of the pier he landed under. Realizing that he's going to kill everyone, Leonardo begs Shredder to stop or they'll kill them all. Shredder just lifts Leo up and tells him [[TakingYouWithMe "Then, so be it!"]] and keeps going. The turtles are able to survive by diving into the ocean while Shredder ends up crushed under the rubble.
344* The ''Franchise/{{Terminator}}'' series is a prime example of this trope.
345** The US government creates the Skynet system, and right after it comes online, it tries to eradicate humanity by implementing an all-out nuclear war.
346** Skynet also engineers its own demise thanks to trying to [[RetGone retroactively assassinate]] John Connor: not only does John learn how to fight Terminators from future versions attacking him as a child, but he was only conceived because [[StableTimeLoop his father followed the first T-800 back to save him in the first place]]. In Skynet's defense, [[FailureIsTheOnlyOption it had already lost]].
347* In ''Film/TheTerrorOfTheTongs'', Lee kills Dr. Fu Chao by injecting him with the syringe full of cyanide he had attempted to use of Captain Sale.
348* In ''Film/TradingPlaces'', the Duke Brothers are the architects of their own demise. The two "guinea pigs" they choose for their 'experiment' wind up figuring out what's happening and hatching their own plot. The same former guinea pigs use the Dukes' own orange juice market plot against them. Even the hooker they got to help ruin Winthorpe's life and the butler they drafted into their plan wind up playing small roles in bringing them down. Geez, they'd have gotten off easier by just being honest businessmen.
349* In ''Film/{{Traitor}}'', the DeepCoverAgent protagonist Samir is unable to break his cover by giving the suicide bombers that are planning to blow up busses in the United States fake equipment. His solution? ''[[FlockOfWolves He arranged for them all to be on the same bus]]'', so that they only managed to blow each other (and one ''very'' unfortunate bus driver) up.
350* ''Film/TransformersFilmSeries'':
351** In ''Film/Transformers2007'', the Decepticon Frenzy is killed by one of many CD like 'throwing stars' which he himself fired. The thing arced in mid-air and came right back at him.
352** Also in the sequel ''Film/TransformersRevengeOfTheFallen'', when Megatron mercilessly tried shooting Optimus with his handgun laser, Optimus managed to grab Megatron's hand and point it at Megatron's face. Megatron then opens fire, burning his face very badly and losing the fight. In the next movie, ''Film/TransformersDarkOfTheMoon'', Megatron is dying (rotting away) from the burns despite the efforts of Scalpel-like doctors to repair it, making him the target of scar insults from Starscream. Towards the end of the film, he appears to have given up leading the Decepticon cause and waits to die while watching Cybertron be restored until Carly goads him to attack Sentinel.
353* In ''Film/TheTripper'', Dylan dies when he is attempting to escape from Deputy Buzz and falls into one of the {{Pit Trap}}s he set in the forest and is impaled on the spikes at the bottom.
354* In the movie ''Film/TuckerAndDaleVsEvil'', almost every single death is the result of one of these, such as the one person who is intent on killing with a spear ramming himself and said spear into the earth -- while holding it. Too bad the spear was pointy on both sides.
355* In ''Film/TheWalkingDead1936'', ProfessionalKiller Trigger Smith trips over a table while trying to get away from Ellman and shoots himself with his own gun.
356* ''Film/WeekendAtBernies'' starts this way: Bernie defrauds his own insurance company and rewards the two employees that discovered it with a weekend retreat at his place. He intends for the mob to off them; [[YouHaveOutlivedYourUsefulness the mob offs]] ''[[YouHaveOutlivedYourUsefulness him]]'' [[YouHaveOutlivedYourUsefulness instead.]] HilarityEnsues!
357* In ''Film/WhoFramedRogerRabbit'', after Judge Doom reveals himself to be a toon, he meets his end by getting sprayed with "Dip," a toon-killing cocktail of paint thinners that he himself created. (Given how often he used the stuff, without ever considering that this might happen, it might qualify as StupidEvil.)
358* In ''Film/TheWholeTownsTalking'', Jones' CriminalDoppelganger, Mannion, had a plan to kill him by making the police think it was himself. But when he steps out of his hide out, and Jones returns unexpectedly, Mannion's mooks confuse him for their boss, and give Jones the opportunity to find out Mannion's plans and kill him.
359* ''Film/TheWindInTheWillows1996'': [[BigBad Chief Weasel]] tries to blow up Toad Hall from the dog food factory. Rat switched the labels on some barrels labeled "bones" and "explosives" earlier on. You can probably figure out how this ends...
360* At the end of the first ''Film/{{Wishmaster}}'' film, the Djinn defeats himself by granting a time-altering wish that, as he realizes too late, means he was never released from his prison to grant the wishes in the first place.
361* Subverted in ''Film/Wishmaster2EvilNeverDies''. When Morgana confronts the Djinn near the end, she tries to make him dispose of himself with a wish, but all her attempts prove fruitless. Wishing him out of existence is not an option because he's an eternal entity, wishing him back in the fire opal can't be done either because the prophecy can't be cheated, and wishing for all evil in the world to go away is impossible because good and evil both depend on each other. Instead she later performs the Persian sorcerer's ritual to reseal the Djinn.
362* In ''Film/TheWizardOfGore'', Montag summons mysterious flames that he attempts to lead Sherry and the others into Pied Piper-style, only to seemingly die when Jack pushes him into the fire.
363* ''Film/XMenFilmSeries''
364** In ''Film/X2XMenUnited'', Stryker's mutant-killing machine is ultimately turned on humans instead, which naturally includes Stryker himself. It gets shut off before it can do the job, of course, but it was long enough to make sure Stryker never escaped.
365** In ''Film/TheWolverine'', had the Big Bad not have told Wolverine how to properly hold a Japanese sword all those years ago, he'd still be around to mock him for it.
366** In ''Film/XMenDaysOfFuturePast'', Trask is seen handing out plans to his new Sentinel units to the foreign powers at the summit in Paris. This turns out to be a major mistake on his part, as he gets arrested for selling military secrets to other countries in the new timeline, once the President apparently has a chance to take a better look at the activities he's been getting up to in the name of advancing his work...
367** In ''Film/XMenApocalypse'', trying to do multiple master plans at once ends up causing Apocalypse's downfall. An empowered Magneto focused on guarding him rather than wrecking the planet would make short work of the mostly adolescent X-men. And if he wasn't too eager to put himself out of action in order to conquer the world by assimilating Xavier's powers in transfer and making everyone his puppet he's more than strong enough to beat anyone else who would interfere with Magneto.
368* In ''Film/XXx'', the chain-smoking [[TheDragon Dragon]] dies when a heat-seeking rocket is attracted to his cigarette.
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