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[[quoteright:350:[[VideoGame/AnarchyReigns http://static.tvtropes.org/pmwiki/pub/images/rsz_pile_bunker_1009.jpg]]]]

A common weapon in the RealRobotGenre and other works, but not necessarily used by the HumongousMecha themselves, as there are sometimes hand-held variants. They work much like RealLife pile drivers, but rather than operating continuously (for example, hydraulically), they typically work with a one-shot chemical charge that drives the metal stake or penetrating spike of sorts, complete with SpentShellsShower and a [[RevolversAreJustBetter revolver]] mechanism.

Pile bunkers are sometimes built into a special [[PowerFist gauntlet]] or [[ArmCannon arm]] for mecha or humans. Often, like ThisIsADrill, it is justified by the need to penetrate heavy armor or barriers.

The spike usually returns to its original position after each "shot" (though the manner is not always apparent). Also, the pile bunker's firing mechanism must be made from incredibly strong materials, or it will explode every time the spike strikes the target, similar to gun with a jammed barrel. Alternatively, it won't be able to penetrate a tough enough target.

Guns that fire the spike away should go into the [[NailEm nailgun]] category.


[[AC: Anime and Manga]]
* Cyan [[MeaningfulName Pile]] uses one in ''LightNovel/AccelWorld''.
* Featured prominently in ''ArmoredTrooperVOTOMS'' and its spinoff, ''Armor Hunter Mellowlink''. The hero of the latter especially likes to finish off his oponents with the pile bunker attachment on his AT-rifle. Armored Troopers, on the other hand, work on the principles of this trope via punching with the arm, as they spend rounds to quick-fire a punch, even without a stake or spike present.
* ''Anime/DaiGuard'''s Knot Buster and Knot Punisher. Justified, since they have to be very precise, easy to use and very powerful to accurately destroy Fractal Knots.
* ''MobileSuitGundamF91'' introduced a weapon called the Shot Lancer which effectively combines the Pile Bunker with the classic medieval lance; its main goal is to let pilots disable enemy mobile suits without triggering a [[StuffBlowingUp catastrophic reactor explosion]] (which is extra bad when you're in a space colony). The Shot Lancer also turns up in the sequels ''[[Manga/MobileSuitCrossboneGundam Crossbone Gundam]]'' and ''[[Anime/MobileSuitVictoryGundam V Gundam]]''
* The third generation of ''GundamAGE'' features the AGE-2 Dark Hound, wielding a DODS Lancer. It's essentially the aforementioned Shot Lancer with a pair of DODS beam rifles in place of the Shot Lancer's machine guns.
* Charlotte Dunois' Rafale Revive Custom II from ''InfiniteStratos'' can carry a pile bunker weapon module hidden in its left shield.
* In ''Anime/NeonGenesisEvangelion'', Sachiel, the very first Angel encountered, has one in its palms (when retracted, the spikes extend from the Angel's elbows). It pierces right through the protagonist's mecha's eye, in a very painful-looking way.
* ''Franchise/{{Zoids}}'':
** CP-08 Pile Bunker, used by Rev Rapter and Iguan.
** By ''Anime/ZoidsGenesis'' many different Zoids carry small pile bunkers used for pivoting.
* In ''Manga/{{Bleach}}'', Gin primarily uses his Zanpakuto (an extending sword) like a pile bunker.
* In ''Manga/{{Gamaran}}'', Banri Omiya wields a special "kuda yari" (tube spear) and, thanks to the above-mentioned tube, can use it to stab, withdraw and stab again at a very fast speed, like a pile driver indeed.
* ''Anime/TheBigO'' has these as one of its signature weapons. Each of its massive arms contains a piston which is used to amplify its punches.
* [[Manga/InuYasha Ginkotsu from the Band of Seven]] is shown to have one built in his chest, but is destroyed before he can use it on Inu Yasha.
* [[SenkiZesshouSymphogear Hibiki Tachibana]] uses a pair of pile bunkers as her Armed Gear. Amplifying her punches for even more devastating power than she already has.
* [[{{Digimon}} Crusadermon]] has one of these built into [[ShesAManInJapan his/her]] arm, though it shoots magical blasts instead of stakes.

[[AC:Light Novel]]
* In Hiroshi Sakurazaka's ''[[LightNovel/AllYouNeedIsKill All You Need Is Kill]]'', the [[PoweredArmor Jackets]] used by the [[CannonFodder Japanese troops]] carry one of these with a clip of twenty charges. They're only marginally effective, but still one of the best options they have.
--> When they first told me its magazine only held twenty rounds, I didn't think anyone could live long enough to use even that many. I was wrong. Mine had four rounds left. I had missed fifteen times--maybe sixteen.

* In ''Literature/NoCountryForOldMen'', both the book and the film, Anton Chigurh wields a captive-bolt pistol which is a Real Life version of this used for dispatching cattle humanely.

[[AC:Video Games]]
* ''AnarchyReigns'': Douglas Williamsburg has two, built into both arms.
* The ''[[http://images.wikia.com/superrobotwars/images/7/7c/Alteisen.png Alt Eisen]]'' of ''VideoGame/SuperRobotWars'' has a Revolving Stake mounted on the right arm. The machine's MidSeasonUpgrade (the ''[[http://images.wikia.com/superrobotwars/images/3/37/Alteisen_Riese.jpg Alt Eisen Riese]]'') and [[{{Expy}} variants]] all carry the same weapon.
** Similar OriginalGeneration weapons include Rapiecage's Magnum Beak, the equipable weapon "G-Impact Stake", the claws wielded by the Strike Guarlion in the Record of ATX manga, and [[VideoGame/SuperRobotWarsMX Cerberus Ignite]]'s "Ignite Pike". Additionally, Haken Browning from ''EndlessFrontier'' wields the Night Fowl assault rifle with an underslung stake below the barrel of the weapon.
* VideoGame/EarthDefenseForce2025 [=/=] Earth Defense Force 4 in Japan: The Fencer PowerArmor character has a variety of pile bunker like weapons available to them some causing additional effects like explosions inside the target from forcefully injected plasma.
* Those in ''VideoGame/FrontMission'' look very much like some ''ArmoredTrooperVotoms'' versions.
* One of Barret's ArmCannon attachments in ''VideoGame/FinalFantasyVII''.
* ''LostPlanet'' has them as a hand-held weapon, and one for the mecha.
* ''VideoGame/ArmoredCore'' has them, too.
* Also by From Software, the now forgotten Xbox 360 game ''{{Chromehounds}}'' featured several versions of these, but powered by hydraulics, not explosives.
* ''DigDug'''s Taizo Hori wields a giant Pile Bunker in ''NamcoXCapcom''.
* ''VideoGame/RType'' has them for ships.
* ''MetalSlug 5'' has it as the Slug Gunner's melee weapon, although this one can't really shoot over a distance.
** In Metal Slug 3D one of the weapons that can be fitted to the customizeable Slug is a Pile Bunker that can be shot out on a chain or used as a ramming tool.
* A weapon (and skill) in ''RagnarokOnline''.
* An unlockable weapon in ''VideoGame/The3rdBirthday''.
* [[RobotGirl Aigis]] acquires one in ''VideoGame/Persona4Arena'' which she uses to start off her All-Out Attack.
* Chuck has one as his weapon in ''VideoGame/WildArms5'', making him one of the 3 melee characters.
* Many of the walker-type robot characters in ''VideoGame/{{Tobal}} 2'' use this as their melee attack.
* Zenia Valov from ''VideoGame/ArcanaHeart'' has one in her PowerFist [[ICallItVera named "Edinorog"]]. [[BilingualBonus That's Russian for "unicorn"]].

[[AC:Visual Novels]]
* ''VisualNovel/{{Tsukihime}}'': Ciel's and [[MeltyBlood Riesbyfe Stridberg]]'s conceptual weapons, Seventh Holy Scripture and True Apocrypha respectively, are magical examples. Notable in that Ciel's weapon, Seven or [[BilingualBonus Nanako]] (Literally means Seven Girl), is sapient, and can transform into a girl.

[[AC:Western Animation]]
* Most versions of Rumble from ''[[Franchise/{{Transformers}} Transformers]]'' have a pair of these for arms, except blunt. He uses these to [[DishingOutDirt create small-scale earthquakes]]. Oh by the way, [[PintsizedPowerhouse Rumble is a Cassette-bot]] that fits into Soundwave's chest.
* Armodrillo from ''Ben10UltimateAlien''.

* Captive-bolt humane killers, used by abattoir workers or vets in areas as an alternative to the bolt-gun type, operate on much the same principle.