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[[quoteright:300:[[WesternAnimation/BarbieInTheNutcracker http://static.tvtropes.org/pmwiki/pub/images/mouse_king_weapon.png]]]]

-> ''"Ooohoohoohoohoohoo! Oh man, I canít believe all these idiots are all in the same place. Thisíll be like shooting dorks in a barrel. Ooo, but what do I use to stop Ďem? Itís gotta be ''perfect.'' Blood scythe? Hammer hand? Oo, giant spinning buzzsaw arms? A zillion tiny spikes that shoot out a zillion tiny poison darts that make your tongue swell up and youíre like, 'BLEHH, NO, BETRAYED BY OWN TONGUE! CURSE YOU DOMINATOR, CURSE YOU!'"'' *Choking noises* *GASP* ''"OO! MAGMA CANNONS, CLASSIC! YES!"'' *Evil Laugh*
-->-- '''Lord Dominator''', ''WesternAnimation/WanderOverYonder,'' "The Battle Royale"

A weapon that can {{shapeshift|ing}} into different forms for different situations. Generally magical, but can be explained with {{Nanomachines}} or some other scientific flavour of AppliedPhlebotinum instead. It might be guided by magic or ElectronicTelepathy, or even be an EmpathicWeapon with a mind of its own. Whatever the case, it tends to be significantly cooler than any boring old stays-the-same-all-the-time weapon.

A subtrope of SwissArmyWeapon.

A SisterTrope to ShapeshifterWeapon when it's part of the wielder's body, RetractableWeapon when it's limited to taking a more compact form, and AdaptiveArmor for its defensive counterpart.


[[folder:Anime & Manga]]
* ''Anime/NeonGenesisEvangelion'': The Lance of Longinus.
* The zanpakuto in ''Manga/{{Bleach}}'', for Soul Reapers who have learned to release their upgraded forms, Shikai and Bankai.
* The Kakugane in ''Manga/BusouRenkin''.
* In ''Anime/PantyAndStockingWithGarterbelt'', Panty and Stocking's namesakes work as these.
* Every device in ''Franchise/LyricalNanoha'' has at least three forms, sometimes changing its weapon class. As a bonus, one of these forms is always its user's own TransformationTrinket, so there's no need to invest in more items.
* Musica in ''Manga/RaveMaster'' wears around his neck a silver skull which, due to his particular brand of abilities, he can manipulate and change into any form he wishes, most commonly a spear.
** The protagonist, Haru Glory, also possesses a sword that has ten different forms, including a simple iron blade, a weapon that explodes on contact, or one that can cut through smoke, magic and other non-cuttables. Two {{Big Bad}}s possess EvilTwin versions of Haru's sword.
** Also in Hiro Mashima's next work, ''Manga/FairyTail'', Knightwalker wields the Ten Commandments in spear form.
* ''Manga/RosarioToVampire'' features Moka's younger sister, Kokoa. She can command the CombatCommentator bat to turn into a mace, a mallet, a sword, a spear and... well, a bat.
* Vash and Knives' handguns turning into the insanely powerful Angel Arms in ''Manga/{{Trigun}}''.
* The Aqua Ribbon in ''Anime/YesPrettyCure5'', which only really takes the form of a ''ribbon'' in the merchandise.
* As the narrator explains, the Carrot Weapon that Mina uses in ''Anime/GetsumenToHeikiMina'' responds to her thoughts. As such, it can be whatever the heck kind of weapon it wants to be -- and it has been quite a lot.
* Black Star's weapon [[EquippableAlly Tsubaki]] in ''Manga/SoulEater'' has multiple forms: really big shuriken, kusari-gama, smoke-bomb, ninja blade, and, later, [[spoiler:Demon Blade (and the several variations this mode allows)]]. She, and the other Weapons, also counts as {{Equippable All|y}}ies and [[ShapeshifterWeapon Shapeshifter]] weapon.
* Ed's arm in ''Manga/FullmetalAlchemist'' is effectively one of these, not due to any facet of its construction, but because Ed constantly uses his alchemy to change it into various weapons, most commonly a simple blade, though he has been seen changing it into more advanced forms, such as a BFG, or even altering its chemical composition to make it more effective against certain enemies.
* ''Manga/MahouSenseiNegima'':
** [[spoiler:Negi and Albireo's book weapons. In Negi's case, he chooses an applicable name from his class register to use the pactio of. In Al's case, he uses a special book mark [[RummageFail thanks to the sheer size of his library of names]]]].
** Jack Rakan has [[spoiler:the artifact "Hero with a Thousand Faces", which can assume the form of any sword, "sword" being defined as "thing that Jack wants to hit you with".]]
* In ''Manga/YuYuHakusho'', we have the Toguro Brothers. The Elder Toguro can shapeshift into any weapon the younger, muscular Toguro wants to wield; sword, shield, you name it. When the Elder fights alone, he's a ShapeshifterWeapon.
* The "Ultimate Weapon" is the main MacGuffin during an early story arc of ''Manga/SpaceAdventureCobra''. When finally discovered, it looks rather inconspicuous: an ovoid fitting in the palm... from which an eye open. But then, if this eye catches sight of any weapon, it can turn into a copy of it... whether a sword, a gun or ''a tank''. And the Weapon can also turn its wielder into a freaking ''giant'' along with its own scaling up. When confronted with this, Cobra takes great care of avoiding that the Weapon could become a ''spaceship''...
* Subverted in ''Manga/HunterXHunter'', where [[spoiler:Kaito]]'s weapon Crazy Slot, upon activation, turns into one of nine very different forms... at random.
* ''Manga/FlameOfRecca'': Kaoru's madōgu is a "puzzle weapon" and can be assembled five different ways; given how the weapon looks after the changes, how exactly this happens is unknown, as one form is basically a lance and another involve a long chain. The chain is shown to be hidden inside the Lance's shaft at one point, so most of the pieces are actually accounted for. The Bow and Arrow, however, is inexplicable on a lot of levels.
* In ''Manga/{{Naruto}}'', one of the Seven Swords of the Mist has the ability to change its shape.
* ''Manga/OnePiece:''
** Ohm, one of Eneru's Priests in Skypiea, has a sword with an iron cloud dial (A seashell that emits clouds as hard as iron) built into the hilt. With it, he can make his blade as long as he wants to ranged attacks, or even a wall for defense.
** Diamante, an Executive Officer for the Don Quixote Pirates, at the Hira Hira No Mi, allowing him to make any object he touches as malleable as a flag without compromising their structural fortitude. He keeps several folded-up weapons on his person to use when he sees fit, and at one point folds his sword into a club shaped like a bull's head.
* In ''Animation/GuardianFairyMichel'', after Laura repairs it, Kim's gun can turn into a magical crossbow.
* The title armors in ''Anime/SenkiZesshouSymphogear'' come with magic-based weapons that can take on a variety of forms depending on the relic fragment that powers them. For example, Ame-no-Habakiri[[note]]a legendary katana[[/note]] arms Tsubasa with several flavors of CoolSword and {{BFS}}, while Ichiaval[[note]]a magical bow[[/note]] can seemingly produce any kind of ranged weapon that [[MultiRangedMaster Chris]] can come up with ([[BeamSpam laser crossbows]], [[MoreDakka Gatling guns]], [[MacrossMissileMassacre LOTS of missiles...]][[LongList the list goes on]]).
* Black Rock Shooter / [[spoiler: Stella]], the titular character of the ''Franchise/BlackRockShooter'' franchise can change her Rock Cannon weapon into various forms, from the typical cannon to a katana, gattling gun, a huge sword, and a spectrum-laser-firing {{BFG}} as seen in the [[Anime/BlackRockShooter anime]].
** The offensive skills on the [[VideoGame/BlackRockShooter video game]] can change the equipped weapon into a homing-missile launcher, grenade launcher, hammer, chainsaw, and even a sniper rifle.
* The magic weapons in ''Anime/DogDays'' have the power to assume whatever form the wielder desires; protagonist Cinque tends to use his as a SimpleStaff because he knows ''Bojutsu'', but he's also shown transforming it into a shield, a surfboard, and even a [[MundaneUtility Frisbee]]. However, for some reason he can't change it into a sword [[spoiler:until the climax of the first season, where a demonic entity goes on a rampage and threatens Princess Millhiore's life]].

[[folder:Comic Books]]
* Defunct comic ''Operation: Strikeback!'''s main character Rascal had a red and white striped scarf that morphed into whatever Rascal wanted or needed at any given moment. From a frying pan to a ''chainsaw''. Yes, a chainsaw.
* The Tactigon in ''[[Comicbook/AvengersTheInitiative Avengers: The Initiative]]''
* In ''ComicBook/{{Annihilation}} Conquest'', Wraith's polymorphic weapon took on a variety of forms, including a gun, a whip, and a small blade, and could somehow deactivate/disarm other weaponry.
* The artifacts from the Top Cow universe (The Comicbook/{{Witchblade}}, ComicBook/TheDarkness, and The Angelus) act as both [[AdaptiveArmor morphable armor]] and weapons.
* ComicBook/DeathsHead II's right-arm implant.
* Creator/DCComics: During the Druspa Tau story arc of ''ComicBook/HawkAndDove'' (1990), tridic metal that let the wielder transform it into any desired weapon, using either NameMagic or a laboriously detailed knowledge of the weapon.
* Paperinik and Morgoth in ''ComicBook/PaperinikNewAdventures'' each have such a weapon.

[[folder:Fan Works]]
* In ''Fanfic/ChildOfTheStorm'', Laevateinn is revealed to be this, having previously been a sword, a wand, and for the last millennium and a half [[spoiler: a phoenix feather]]. No one's entirely sure, but it's hinted [[EmpathicWeapon to have a mind of its own]].
* In ''Fanfic/KyonBigDamnHero'' one of the slider's enemies is equipped with two of those. Later, Kyon and [[WildCard Fujiwara]] take hold of them.

[[folder:Films -- Animation]]
* In ''WesternAnimation/BarbieInTheNutcracker'', the Mouse King's sword could transform into any other weapon he wanted, including a [[FridgeLogic crossbow that somehow starts out with ammunition.]]

[[folder:Films -- Live-Action]]
* ''Film/HellboyIITheGoldenArmy'': Prince Nuada has a spear that can change into a dagger and vice versa.
* The Cutlass from ''Film/AfterEarth'' ; its unique design extends its sharp-bladed ends in a variety of shapes which can be chosen by the holder, each blade shape seemingly fitting a different style of attack.

* "Literature/TheSoftWeapon", a 1967 short story by Creator/LarryNiven, introduced the TropeMaker; the titular "soft weapon" is a combination SonicStunner, telescope, [[FrickinLaserBeams Frickin Laser Gun]], personal rocket, and [[EnergyAbsorption Energy Absorber]], all accessible via a sliding switch and complete with [[TalkingWeapon onboard AI]]. Hidden functions include a ''horizon-range [[ThereIsNoKillLikeOverkill Hiroshima-scale matter-to-energy converter]]'' and a SelfDestructMechanism.
* Iridea's Tear in ''[[ForgottenRealms The Threat from the Sea]]''. But it's an artifact so ancient that even legends about it are mostly forgotten, a {{Clingy MacGuffin}}, it does not accepts just everyone ''and'' requires proper rite for complete binding to its new owner.
* The Great Weapon Godslayer in ''Literature/{{Dragaera}}''. However, while she's sentient, there doesn't seem to be much logic behind the forms she uses, much to the annoyance of her wielder.
** It helps that one component in its making was an AntiMagic chain that always became whatever length Vlad needed it to be at the time.
* One of the ''Literature/SectorGeneral'' novels has a [[GeniusLoci living continent]] whose only manipulative tools are silvery symbiotic organisms of organic metal, which [[EmpathicWeapon respond to thought]] to reshape themselves. At close range, other sapient beings can override the vast but diffuse mental control of the landcreature.
* The Platinum Flute in the ''Literature/ApprenticeAdept'' series can become any weapon or musical instrument.
* The Sartan dagger in ''Literature/TheDeathGateCycle'' not only turns itself into a weapon powerful enough to face whatever its wielder's enemies are carrying, it also changes the wielder himself if he can't handle the dagger's new form.
** For example: an elf wielding the dagger had to face another elf with a broadsword. The dagger changed into an even bigger broadsword, which was so heavy the elf couldn't hold it -- so the dagger gave the elf two new arms. (This is when the elf died of shock, by the way.)
** Sometimes, if the wielder is facing an opponent more powerful than the dagger, it will actually ''summon'' something capable of defeating the opponent, rather than turning into it. As a result, a protagonist finding himself threatened by a bunch of KnightTemplar demigods accidentally used it to summon a swarm of [[OmnicidalManiac omnicidal]] undead, which didn't improve the situation any....
* Dom Sabalos of ''Literature/TheDarkSideOfTheSun'' has a "memory sword", which is essentially a hilt containing a device which can produce different types of blades, laser and molecular stripper energy weapons, or even a projectile gun that freezes bullets out of atmospheric moisture.
* The Mesmerist shiftblades in ''The Literature/DeepgateCodex'' are souls of the dead conditioned to serve as morph weapons.
* ''Literature/TheDarkAngelTrilogy'' has Curoch, which can be made to change into whatever form best suits it.
* The [[ScaryDogmaticAliens Yuuzhan Vong]] amphistaff from the ''Literature/NewJediOrder'' has a comparatively mild version of this power. It can change its length, thickness, and density according to the will of its wielder, meaning that it can quickly shift from whip to spear to staff to sword and back again - and in any of its rigid states, it's durable enough to block a ''lightsaber''. [[LivingWeapon Oh, and its also a living snake-like creature]], meaning that on one end (the "hilt" of its sword form) is a head with venomous fangs that can bite or spit poison, too.
* In ''Literature/WordsOfRadiance'' (second book of ''Literature/TheStormlightArchive''), we find out that a true [[AbsurdlySharpBlade Shardblade]], being wielded by its bonded Radiant, can morph into whatever shape its wielder desires, including non-bladed weapons like hammers and shields. [[spoiler:This is because the Blades are actually [[NatureSpirit spren]]. The ones everyone else is using are dead, but the ones the Radiants use are alive]]. In Literature/{{Edgedancer}}, we find out that they don't have to be weapons per se, though apparently any points will still be {{Absurdly Sharp Blade}}s which makes a Shardfork [[AwesomeButImpractical impractical]] as an eating utensil.
* Some of the keys in ''Literature/KeysToTheKingdom'' are capable of this.
** The first key, when separated into the minute and hour hand appear as daggers and knives. But when combined they fuse into a sword.
** The third key in its default form appears like a three pronged table fork, but in battle mode it changes into a full-length trident with sharpened ends.
** The fourth key which has the default form of a marshal's baton, but turns into a broadsword when Sir Thursday wields it, and into a rapier when Arthur gets into combat.
* Razors in ''Literature/RedRising'' can be considered this.
** When not being used, it's just a relatively harmless whip. But with the push of a button, it extends, hardens, and flattens into a sword.
** The shape of the blade can even be customized mid-battle, changing from a standard sword to a curved sickle in an instant.
* Creator/CarolBerg's ''Literature/RaiKirah'' series:
--> the silver Wardenís knife that could be changed to whatever weapon was needed, [[WeaponOfXSlaying that could slice through the incorporeal body of a demon if you could calculate exactly where that was]].
* ''Literature/{{Somewhither}}'': Abby's kusarigama-like weapon has a chain that can lengthen or retract, and act as a winch to pull her and others up.

[[folder:Live-Action TV]]
* ''Series/KamenRiderKuuga'''s [[MultiformBalance alternate forms]] can change random objects into their [[WeaponOfChoice Weapons of Choice]], with the caveat that they have to resemble the weapon in question; Dragon Form's staff and Titan Form's sword can come from any stick-like object,[[note]]though for the Titan Sword he usually uses the baton stored as his CoolBike's handlebar,[[/note]] but Pegasus Form's bowgun requires some form of gun.
* Series/KamenRiderDenO's [=DenGasher=] consists of four pieces which can be configured into a number of different weapons, each of which is the WeaponOfChoice for one of his [[MultiformBalance forms]], including a sword, spear[=/=]fishing rod, axe, gun, paired handaxe and boomerang, and naginata. SecondRider Zeronos' [=ZeroGasher=] works on a similar principle, but only has two forms, greatsword and crossbow. The various movie-exclusive villains tend to use unique variations on the [=DenGasher=], to go along with the fact that most of them are [[PropRecycling made from modified Den-O costumes]]; the best example is [[TimePolice G Den-O]], which he wields as a gun and ''jutte''.
* ''Series/PowerRangersLostGalaxy'' and ''Series/PowerRangersNinjaSteel'' give the main five Rangers a common weapon that can turn into one of five forms, each Ranger having his or her preferred mode instead of a personal Power Weapon, but ''not'' being totally averse to changing it if the situation calls for it. Curiously, in ''Series/PowerRangersJungleFury,'' Yellow and Blue have weapons that ''look'' like they're made of identical moving parts and could be switched to each other's preferred modes, and the toys ''definitely'' can, but it never happens in the show.
* ''Series/TheNewAdventuresOfRobinHood'': The unicorn horn in "Devil's Bride" which can become almost anything, including a LaserBlade.
* Ka D'argo's Qualta blade in ''Series/{{Farscape}}'' is a traditional Luxan weapon, a broadsword that can convert to a powerful [[FrickinLaserBeams pulse rifle]]: the blade splits to uncover the barrel, while the hilt and guard become the stock and grip.

[[folder:Tabletop Games]]
* ''TabletopGame/DungeonsAndDragons'':
** Morphing is a magical ability that can be put on a weapon, allowing you to change the weapon within its size category (Light, One-Handed, or Two-Handed). However, since attack range and actual weapon properties stop becoming issues by the time you can have a +3 sword (+1 enhancement, +2 morphing), it is one of, if not the most, useless abilities in the game.
** Also available is the Rod of Surprises, which can change into one of several weapons, each being close to the concept of "decent-sized stick with a blade on one end". It has a few other functions, but those are the main ones. A DM may also allow a player to apply the Morphing enchantment as well. Since the Rod can change into at least one weapon from all three categories, the rod can now become, with a little prep time, ''any melee weapon ever published''. Of course, all the good ones require special training, but that can be solved by taking a level in Warblade, which actually has InstantExpert as a class feature.
** Which was, of course, predated by the Rod of Lordly Might, introduced in 1E, where buttons on the rod allowed the wielder to turn it into a mace, sword, battle axe, or a spear of length between 6-15 feet. Then, there was the Rod of [[JokeWeapon Lordly Might or Might Not]] from ''Magazine/{{Dragon}}'' magazine which included the weapon form of [[ShoutOut +3 backscratcher]].
** There's also the Soulknife Class, a psychic character who weilds blades of psionic energy. They begin with a short sword and later can throw it, and around 5th level they can start changing what the blade looks like, from a short sword, to a greatsword, to a bastard sword, to two short swords. With feats they can turn their mindblade into other weapons as well.
** You can also get the Sizing quality, which allows you to change the weapon's size category. Between this and Morphing, a single weapon effectively becomes ''every weapon ever''.
** Another ''D&D'' reference, karach is an element found in Limbo which can be shaped by the strong-willed, and is used by the githzerai, who inhabit the plane (see the ''VideoGame/PlanescapeTorment'' entry below).
** Warlocks in 5th edition who choose the Pact of the Blade get one of these as the symbol of their bond with their patron. It counts as a generically magical weapon and takes whatever form its wielder wishes, changing whenever they want -- and, as part of the magic, its wielder is automatically proficient with it, allowing a warlock to casually use any weapon, even if they wouldn't be able to use the mundane version. Also overlaps with SpontaneousWeaponCreation, as it is literally shaped out the warlock's magic and dissipates back into the ether when dismissed or the warlock falls unconscious.
* The Lunar Exalted of ''TabletopGame/{{Exalted}}'' have Moonsilver, which changes and flows constantly. One of the higher level abilities usable with moonsilver weapons is the ability to have a piece break off and burrow to the target's brain. There are also Charms that allow a Lunar to reshape a moonsilver weapon into any other moonsilver weapon they need, be it an axe, sword, or bow.
* The Phase World setting for ''TabletopGame/{{Rifts}}'' has a race named for Japanese mythology, who use advanced nanotech to make a weapon known as the Daisho-10, a laser pistol which can transform into a short vibro-sword and back on command. Less legally, there is also a "Ninja-10" available, which also has the third form of a video camera or pocket computer (fully functional, too, to avoid suspicion).
** When Cyberknights got the PowerCreepPowerSeep treatment, one of the new abilities allow them to change the appearance of their signature weapon, the Psi-Sword. Changing its shape does not change its abilities, however, and maintaining the altered shape burns up the Cyberknight's attacks per round, so its actual usefulness is questionable.
* Creator/GamesWorkshop games:
** In ''TabletopGame/WarhammerAgeOfSigmar'', the Changeling carries the Trickster's Staff, a weapon that shares its wielderís shape-changing abilities enabling it to take on the form and abilities of its opponentís weaponry.
* ''TabletopGame/Warhammer40000'':
** The Yncarne, the [[GodInHumanForm Avatar]] of the [[SpaceElves Eldar]] God of the Dead, wields [[NamedWeapon Vilith-zhar, the Sword of Souls]]. This powerful Cronesword is able to transform into any weapon that suits the Yncarne's immediate needs, from a {{BFS}} to [[DualWielding a pair of]] [[BifurcatedWeapon smaller blades]], and anything in between. To reflect this, the Yncarne model can be constructed with either a single large blade or two smaller ones.
** Obliterators use this trope and/or a combination of ShapeshifterWeapon and SwissArmyAppendage: They can sprout/are welded to a wide assortment of weapons to counter any enemy type (such as flamers for infantry, plasma cannons for armor, and lascannons for vehicles) from their arms. Mutilators are the same deal, only with melee weapons where the Obliterators have ranged ones.

* From ''Toys/{{BIONICLE}}'', the Toa Nuva's new Adaptive Armor and corresponding weapons automatically shape-shift to fit the environment and/or the foes they are facing. Upon teleporting into Karda Nui and finding themselves in midair, the Toa saw that their armor had already grown wings and jets; while the weapons became light-shooting "Skyblasters", perfect for battling the shadowy, bat-like Makuta that had invaded the area. It's worth noting that this is a MerchandiseDriven example; by giving the Toa shapeshifting armor, LEGO would've theoretically been able to create new figures without worrying about them looking different... if ''BIONICLE'' hadn't been canned two years later and that wave had pretty much been the last appearances of the characters.

[[folder:Video Games]]
* ''Franchise/DevilMayCry'' has a number of these.
** In [[VideoGame/DevilMayCry1 the first one]], the Sparda weapon (the ultimate form of the humble Force Edge) works like this, changing from a sword, to a spear, to a sickle, depending on your moves.
** In ''VideoGame/DevilMayCry3DantesAwakening'', the electric guitar weapon can morph into a sickle when swung.
** ''VideoGame/DevilMayCry4'' has the most ridiculous example of them all: Pandora's Box, which is a rare projectile weapon version of this - turning into a bowgun, missile-launcher, minigun, laser, buzzsaw, or even a ''[[MacrossMissileMassacre flying missile platform]]''!
*** In fact, the description of Pandora's Box claims it can take on 666 different forms, although significantly fewer are actually usable in gameplay...
*** Of course, being Pandora's box the last form, 666, is Dante simply letting it drop open. If the chaos gauge is filled up this does absolutely insane damage, [[YouCannotGraspTheTrueForm for logical reasons]].
** Dante's Rebellion sword is cast as this in ''VideoGame/DmCDevilMayCry''. Rather than have a lot of weapons, you have a sword that is capable of tapping into Dante's Angelic or Demonic heritages, thus changing its form (and each of those states is home to two weapon configurations each that you swap between by using the direction pad).
* In ''VideoGame/EternalFighterZero'', Sayuri Kurata's MagicalGirl wand is capable of transforming into a sword, a gun, a mace, and even a piledriver.
* The ''Franchise/FinalFantasy'' series has numerous examples of these.
** The Atma Weapon (a {{Woolseyism}} of Ultimate Weapon) is a mild variation of this in ''VideoGame/FinalFantasyVI''. It's always a pink lightsaber-looking sword, but it changes size (from a knife to the longest sword in the game) and attack power depending on the wielder's HP total.
** ''VideoGame/FinalFantasyXIII'' is filled with this. Lightning's gunblade, which is either a gun or a sword, but not both at the same time like [[VideoGame/FinalFantasyVIII Squall's]]. Sazh's matched pair of pistols can be combined together into a sniper rifle of sorts for some attack animations. Fang's lance can pull apart into a [[FightingWithChucks sansetsukon]] in much the same way.
** Mog from ''VideoGame/FinalFantasyXIII2'' can change between a bow and his moogle form. Then on top of that, while in weapon form, the bow can be closed to form into a sword, in a mechanical method similar to many of the weapons from ''Final Fantasy XIII''. Noel's dual swords from the same game also count; aside from working as two swords (and having a built in sheath for the smaller sword on the larger flame shaped sword), they can also be combined together to form a spear/glaive, and that then can morph slightly more into a javelin form.
** ''VideoGame/FinalFantasyXIV'': A large number of the Item Level 70+ gear count as these. Of particular note, is the Artemis Bow, the bard job's relic weapon. While not in combat it looks like a harp. But as soon as it's drawn, it opens up into a full sized longbow.
* ''VideoGame/ProjectSnowblind'' has a variety of weapons, all of which have secondary fire modes that allow them to fill a role that is completely different from their primary role. Examples include a sniper rifle that doubles as a {{Mind Control}} gun, the silenced pistol that can fire smart missiles, and the ricocheting flechette gun, which could unleash a swarm of taser drones. One might say that instead of morph weapons, Project Snowblind has morph ammo.
* ''VideoGame/NeverwinterNights''
** Dream Dagger in ''VideoGame/NeverwinterNights2: Mask of the Betrayer''.
** Enserric the Longsword from ''VideoGame/NeverwinterNights: Hordes of the Underdark'' is a limited version. The weapon can morph itself into few other forms, but after pulling it from its former wielder's fingers, it's stuck in that form.
* Zig-Zagged with the Gunslashes in ''VideoGame/PhantasyStarOnline2''. While most Gunslashes change form when they switch between sword and gun mode (usually by retracting the laser blade,) some are [[MixAndMatchWeapon Mix-and-Match Weapons]] instead, keeping the same form in both modes.
* ''VideoGame/PlanescapeTorment''
** Dak'kon's karach blade is shaped by his thoughts; based on your conversations with him, it changes form. [[spoiler:The Practical Incarnation reveals that he went through all the trouble of obtaining Dak'kon for the sake of his blade -- apparently, only the sky's the limit for how powerful that weapon can become, if Dak'kon is focused enough.]]
** And there's the [[InfinityPlusOneSword Entropic Blade]], which can be changed into whatever weapon the PC is most skilled with.
* ''VideoGame/SoulSeries'':
** Necrid in ''Soul Calibur II'' has a glowing ball of PureEnergy that can become a daisho, zweihander, or battleaxe. He can also do a whip sword or simply expand the ball and smack you with it.
** The eponymous swords Soul Calibur and Soul Edge can also change form to fit their wielder. Soul Edge was originally a pair of longswords and Soul Calibur was originally a Chinese jian [[AncestralWeapon passed down]] from [[ChineseGirl Xianghua's]] mother to her. However, Both swords' most iconic forms are [[OneHandedZweihander Zweihanders]]. In most of the games, every playable character has an unlockable weapon that is either Soul Edge or Soul Calibur, morphed into [[WeaponOfChoice whatever weapon that character uses in their personal fighting style]].
* ''VideoGame/WorldOfWarcraft''
** Certain Epic quality weapons (before the expansion pack) used to be Morph Weapons (Benediction-Anathema is a good example). This mechanic is no longer used, however, due to problems with enchanting such items.
** Another system was introduced instead, the heirloom items. These items can be passed between any character on the same account and server and scale with the characters level. Some of them even change armor type to cover the fact that several classes get a new armor type to use at level 40 (leather->mail and mail->plate).
** There's also (with the second expansion) Quel'Delar. Okay, it's always a sword, but in game terms what's far more important is that when it is finally gained after a long quest chain, it "adapts to its wielder" and you can choose what stats it has, which matters more than the actual physical shape it takes. (But if you can't use a sword at all, you'll get a different weapon of equal power from the Argent Crusade's arsenal.)
* ''VideoGame/{{Iji}}'': The Komato [=GEN2=] Pre-Loader uses nanotech to assemble its ammo on the fly, allowing its wielder to open fire with anything -- from machineguns to death beams to the [[StuffBlowingUp MPFB Devastator]] -- with absolutely no warning beforehand. The same can be said of the Tasen replica wielded by the protagonist herself.
* ''Franchise/KingdomHearts''
** Keyblades do this in two different ways - first, swapping keychains gives it a new "look" based on a certain world or character, with different bonuses in terms of strength / reach / magic. When the ''Birth by Sleep'' characters showed up, things started getting wilder.
** [[BonusBoss Lingering Will's]] Keyblade changes from a {{BFS}}, to a whip, to a bow and arrow, to a [[{{BFG}} giant cannon]], to a HOVERCYCLE! [[http://www.khwiki.net/images/5/50/Lingering_Will_Fighting_Styles_KHIIFM.png Seriously.]] Terra, by contrast, can only use the cannon and cycle modes as a playable character.
** Keyblades in general can do this, although only the ''Birth By Sleep'' characters and Sora as of ''VideoGame/KingdomHeartsIII'' know how to do so. Each Keyblade seems to have certain extra shapes based one or two specific keychains - Terra's bike / cannon / etc are all based around either Earthshaker or Ends of the Earth, whether or not he's actually using them at the moment.
** In the [[UpdatedRerelease Final Mix version]] of ''Birth by Sleep'', the new bonus boss [[spoiler:No Heart, the data of Master Xehanort in his prime,]] can change his Keyblade into shin guards, a large claw, an arm cannon, a floating shield and even a large pair of wings.
** ''VideoGame/KingdomHeartsIII'' takes this and really runs with it - ''all'' of Sora's keychains have their own unique transformations.
* ''VideoGame/JakAndDaxter'': Jak's Morph Gun. Really, [[ExactlyWhatItSaysOnTheTin the name says it all]]; the base gun morphs with the application of mods. Through the use of mods it can become a shotgun, a rifle, a machine gun or a rocket launcher. Gets even ''more'' abilities in the third game, where it can fire grenades, beams of electricity, attack saucers, or [[NukeEm just plain ol' nukes]], among other options.
* Zero's Z-Saber in ''VideoGame/MegaManZero'' can also be a spear, grappling hook, tonfa, [[BottomlessMagazines magazine]] for a pistol, or shield you can throw.
** In ''VideoGame/MegaManZX'' and its sequel, the Model ZX biometal (which is based primarily on the VideoGame/MegaManZero era Zero) has a single weapon: the handle of the Z-Saber can tilt 75 degrees, turning it into a chargeable buster pistol (this is only really apparent in cut-scenes, however).
* While the weapon itself doesn't change, VideoGame/MegaMan's Arm Cannon can fire a variety of different weapons thanks to the weaponization of his Variable Tools System. In the sequel series, ''VideoGame/MegaManX'', X's X-Buster does much the same, but, when he gets the inevitable X-Buster upgrade, he can also charge the weapons to get entirely different effects (such as Chameleon Sting, which is stated to fire powerful optic lasers, making him functionally invincible when it's charged up).
* In ''VideoGame/MegaManStarForce'', all of your Battle Cards manifest by morphing your Mega Buster into a sword, variant gun, or other weapon. It's just as well that Omega-Xis is a bit of a BloodKnight, since the Mega Buster in the Star Force games ''is his head''.
* ''VideoGame/ManaKhemiaAlchemistsOfAlRevis''
** The main character, Vayne, has ''[[EquippableAlly his cat]]'' transform into a sword and armor. And then it further transforms into an [[{{BFS}} even larger sword]], among other things...
** And in the sequel, ''VideoGame/ManaKhemia2FallOfAlchemy'', both of the main characters transform their weapons during their Intimate Strikes. Raze transforms his [[EnergyWeapon sword of light]] into a spear, and Ulrika transforms her morning star into a spiked hammer.
* Jude's [=ARM=] in ''VideoGame/WildARMs4'', "Shapeshifter", typically takes the form of a one-handed pistol, but can also transform into a sword or a two-handed beam cannon, among other things.
* For once Creator/PeterMolyneux wasn't lying when he said weapons in ''VideoGame/FableIII'' will alter their shape depending on what you slay with it. Whether there was any actual point to this system however...
* Your SilentProtagonist in ''VideoGame/GodEaterBurst'' wields a weapon which shifts between a BFS and BFG at [[RealTimeWeaponChange the push of a button]].
* From the ''VideoGame/GuiltyGear'' series there's Millia Rage and her ''hair''. Technically, her hair is alive (long story) and she can use it as a weapon by changing its shape and density at will. Millia can turn it into a blade or shield herself with it, and can shoot a projectile from it, among many other things. Her ultimate kill move has her hair locks impale the opponent. ''Twice''.
* Technically, the Noble Phantasm of [[spoiler:Lu Bu]], Rani's Berserker in ''VideoGame/FateExtra'' is one of these. The NP can switch between five different forms, however, because Berserker is under Mad Enchantment, he doesn't have enough frame of mind to use it to its full potential. The only forms he can use in the game are a pike and a bow that launches said pike as the arrow. The other three forms are a mystery.
* The Scions in ''[[Videogame/BattleZone1998 BattleZone II]]'' have shapeshifting {{Hover Tank}}s. Combat mode is faster, more maneuverable and regenerates ammo, while Assault mode is more damage-resistance and [[RegeneratingHealth regenerates health]] (slowly). The weapons on the tanks likewise shift between Combat and Assault mode; Combat is best suited for fighting other ships, while Assault mode is better at attacking bases or high-end units. The Scion's Arc Cannon for example, goes from firing a long-ranged [[LightningGun 5-shot lightning burst]] in combat mode to a continuous short-ranged lightning arc in Assault mode. International Space Defense Force weapons also have combat/assault modes, but their units are incapable of morphing, forcing them to rely on other units to get the alternate modes.
* ''VideoGame/LeagueOfLegends'': [[LightningBruiser Jayce]]'s WeaponOfChoice is the [[DropTheHammer Mercury Hammer]]/[[EnergyWeapon Mercury Cannon]]. Changing the form of the weapon also changes Jayce's whole move set, giving him the ability to transform from CloseRangeCombatant to LongRangeFighter at will.
* ''Franchise/TheElderScrolls'':
** Throughout the series, the "Bound Weapon" spell allows for this. Crossing over with SpectralWeaponCopy and SpontaneousWeaponCreation, the spell (classed under the [[SummonMagic Conjuration]] school) summons a temporary Daedric weapon for the caster.
** In ''[[VideoGame/TheElderScrollsIVOblivion Oblivion]]''[='s=] ''Shivering Isles'' expansion, there is the sword Dawnfang/Duskfang. It's a blade that changes appearances and elemental alignment (fire and ice) at 6 AM and PM. It's also a bloodthirsty EmpathicWeapon that will grow stronger on the next transformation if you kill at least twelve enemies with it.
* Later entries of the ''VideoGame/MonsterHunter'' series have the Switch Axe weapon class, a "high-tech" armament that can transform using a special phial from a [[AnAxeToGrind massive axe]] into a [[{{BFS}} massive sword.]] Also, Monster Hunter 4 introduces another transforming weapon class, the Charge Axe, which adds a separated sword-and-shield form to the mix.
* ''VideoGame/{{Vanquish}}'''s Battlefield Logic [=ADaptable=] Electronic weapons system(BLADE) not only transforms into up to three different weapons on command, it can [[http://www.youtube.com/watch?v=89pX2JRsWvI#t=03m34s store itself in Sam's arm.]] How does it work? [[RuleOfCool Who cares?]]
* In ''VideoGame/ShounenKinindenTsumuji'' a Japanese game, has Tsumuji's weapon a large shuriken is able to transform into different weapons against enemies after gaining power stones.
* In ''{{VideoGame/Bloodborne}}'', Trick Weapons are the main offensive option for players. These weapons tend to have fairly orthodox normal forms, but can transform into wildly varying alternate forms. This is an odd case, though, as most Trick Weapons are at least seemingly possible in real life(Ex:a hand-saw with blade folded inward towards the handle that can fold out into a large cleaver).
* Eckesachs, the weapon wielded by the BigBad Zephiel of ''[[VideoGame/FireEmblemElibe Fire Emblem: Binding Blade]]'', usually takes the form of an imposing StaffOfAuthority, befitting its holder's position as king. When he actually uses it in combat, it transforms into [[{{BFS}} an absolutely massive sword]].
* ''VideoGame/AxiomVerge'': Trace's [[OrganicTechnology Axiom Disruptor]] can morph into various different weapons (such as an ice-thrower or a LightningGun), as well as project a laser drill, corrupt enemies, and create a remote drone.
* The ''VideoGame/{{Bayonetta}}'' series has the Rodin, weapons that are earned by beating the FallenAngel of the same name in a brutal BonusBoss battle. In the first game their default form are four golden rings that look like [[HolyHalo halos]] that can morph into any of the [[ExclusiveEnemyEquipment various angelic weapons]] that can be temporarily obtained throughout the game (plus a [[ChainsawGood chainsaw]]). [[VideoGame/Bayonetta2 In the sequel]] the wrist rings are are now crimson red, and will morph exclusively into demonic weapons, while the golden ankle rings retain the ability to morph into angelic weapons.
* The FinalBoss of ''VideoGame/DarkSoulsIII'', [[spoiler:the Soul of Cinder, is a manifestation of ''everyone'' who has ever linked the First Flame, including every [[VideoGame/DarkSoulsI Chosen Undead]] and [[VideoGame/DarkSoulsII Bearer of the Curse]] who chose to do so across countless player worlds, and he has the variety to show for it. His weapon can turn into a straight sword, a curved sword, a lance/halberd, and a sorcery catalyst. And once his health is depleted, [[LegacyBossBattle Gwyn]] and his greatsword come back for a rematch]].
* Uncle Death's Scythe from ''VideoGame/LetItDie'' is able to retract the blade, transforming into a [[GolfClubbing golf club]].
* Kinessa's gun from ''VideoGame/{{Paladins}}'' needs less than a second to transform from assault rifle to sniper rifle or vice versa.
* The Shining Trapezohedron from ''VideoGame/{{Sundered}}'' is an intelligent shapeshifting crystal that attacks by coiling around one of Esheís limbs and shaping itself into a variety of different blades, fists, and spikes as she swings it around. Its ability to do this is justified by the fact that it is [[spoiler:part of an EldritchAbomination]].

[[folder:Web Animation]]
* In the Feast Master story arc of ''WebAnimation/BananaNanaNinja'', the Omni-Functional Kitchen Gadget can turn into a variety of cooking utensils and appliances, as well as a HumongousMecha used in the final battle.
* ''WebAnimation/{{RWBY}}'', quite famously so. TheHeroine Ruby's Crescent Rose can transform between a {{BFG}} and a SinisterScythe. TheSmartGuy Blake's Gambol Shroud can transform between a ninja sword and a machine pistol. TheAce[=/=][[HeroOfAnotherStory HeroineOfAnotherStory]] Pyrrha Nikos has a weapon that can transforms between a short Greek-style sword, a spear, and a long rifle. And IneffectualSympatheticVillain Junior has a huge missile launcher that can transform into a hefty baseball bat. It's actually at the point where it's unusual to see a weapon that doesn't transform in some way.

[[folder:Web Comics]]
* In ''Webcomic/{{Darken}}'', there's Shard, a sentient, evil sword, who can change himself into whatever form of weapon is most advantageous. Although he's more likely to change into whatever's funny...
* ''Webcomic/{{Goblins}}'':
** Dies-Horribly's metal arm. It's also an EmpathicWeapon with PowerIncontinence for a triple-threat.
** Downplayed by the Axe of Prissan; it was intended to be used by multiple individuals and so can alter its size to suit the needs of whoever wields it, but its basic form will always be an axe.
* Secret's weapon in ''Webcomic/KeychainOfCreation'' is one of these, as well as an EmpathicWeapon with a taste for blood -- including the ''wielder's''. Yikes.
* The title character's sceptre in ''Webcomic/GorgeousPrincessCreamyBeamy''. It's ''supposed'' to be only able to morph into various eating utensils, but she managed to get around this with her warped logic; "A sawblade could be an eating utensil!"
* Beisaru's staff, in ''Webcomic/{{Juathuur}}'', can get longer. And sharper.
* Fiona's weapon in ''Webcomic/SupernormalStep'' manifests a variety of shapes out of its apparently-fixed handle. So far she doesn't seem to have much control over its shifting.
* In ''Webcomic/AxeCop'', Fire Slicer has a sword that can turn into a torch and then back into a sword, so he can set his opponents on fire while he's cutting them in half.
* Wildcard, the sword-of-a-million-tricks from ''Webcomic/TalesOfTheQuestor'', made this trick number 1,000,001, debuting this new ability by [[spoiler: lobotomizing a dragon. ''OUCH.'']]
* ''Webcomic/{{Homestuck}}'': Kanaya, Jane, [[spoiler:Calliope]], and [[spoiler:Caliborn]] all wield weapons which are capable of morphing: Kanaya wields a lipstick which becomes a chainsaw, Jane wields a cutting-edge Betty Crocker spoon which becomes a fork with the flick of a button, [[spoiler:Calliope's wand transforms into a magnum pistol]], and [[spoiler:Caliborn's scepter turns into a rifle]]. Kanaya's in particular is a callback to ''Webcomic/ProblemSleuth'', where object/weapon duality was a running gag.
-->"Your KEY is out of bullets!"
* Darius in ''Webcomic/TheCyantianChronicles'' got a somewhat high tech [[http://cyantian.net/blog/2010/06/18/06182010/ "stick"]] for his 15th birthday.
* ''Webcomic/APTComic'': Ammika's locket. It's a sword! It's a flail- [[InsistentTerminology er, mace!]] [[ImprobableWeaponUser It's a cat!]]
* Green April from ''Webcomic/TowerOfGod'', a hook-like baton that can grow into a giant whip and also splits into several sub-branches.
* In ''Webcomic/TheStoryOfAnima'', How Dante's Animus manifests. Its base form is a black fluid that he can shape into the desired weapon, [[http://tapastic.com/episode/72978 from a scythe]] to [[http://tapastic.com/episode/79134 a monster-sized guillotine.]]

[[folder:Web Original]]
* The [=HaLOs=] in ''Roleplay/AvatarAdventures''. They make Christianity ''awesome''.
* In ''[[Literature/ChaosFighters Chaos Fighters-Route of Peaks]]'', Cogra's pen has a laser blade and it can change into a gun pod and a shield.
* In ''Literature/{{Worm}}'', Miss Militia has this as her superpower. She can manifest any handheld weapon she wants, and never has to reload.
* ''Literature/WhateleyUniverse'': Absinthe's weapon, ''Needle'', has sword, and spear forms.

[[folder:Western Animation]]
* Of the funny variant; in the Creator/VanBeurenStudios Tom & Jerry [[note]]No relation to the [[WesternAnimation/TomAndJerry famous cat and mouse duo]][[/note]] short "Rabid Hunters", Tom corners a rabbit, first pulling out a handgun, but then he turns it into a hunting rifle on the spot.
* The Lotus Blade in ''WesternAnimation/KimPossible''.
* Yang's bamboo sword in ''WesternAnimation/YinYangYo''
* Featured in one of ''WesternAnimation/OhYeahCartoons'' more cinematic shorts.
* ''WesternAnimation/XiaolinShowdown'' does one of these with Omi's Shimo Staff.
* There is a transforming sword in the old ''[[WesternAnimation/TeenageMutantNinjaTurtles1987 Teenage Mutant Ninja Turtles]]'' cartoon. Splinter is the only ninja skilled enough to wield it; otherwise, it sprouts extra blades and such uncontrollably.
* ''WesternAnimation/SheRaPrincessOfPower'':
** She-Ra's power sword can change shape when she says the phrase "Sword to ".
** Her friend Bow's... bow can change into a lute whenever he wants to sing a song. This doesn't come up very often, thankfully.
** And let's not forget Hordak, who can [[ShapeshifterWeapon shapeshift his own body into any kind of weapon needed]].
* WesternAnimation/InspectorGadget's hat can function as one when it deigns working right.
* The ''WesternAnimation/StarTrekTheAnimatedSeries'' episode "The Slaver Weapon" involves Spock, Sulu and Uhura held captive by a crew of Kzinti (the episode was written by Larry Niven, adapted from his own "Literature/TheSoftWeapon") while carrying a case of artifacts from a long-lost race called the Slavers. One of the artifacts turns out to be a hand-held weapon that can change form with a twist of a dial, from an energy pistol similar to a phaser, to a telescope, to a vocalizing computer, to a long-range weapon that carries the impact of a small nuclear bomb. Fortunately for the rest of the galaxy, it also has a self-destruct (which the vocalizing computer tricked the Kzinti into triggering). Sulu hypothesized that the device was used for espionage instead of combat, since the average grunt wouldn't need all those settings.
* Guardian Keytools from ''WesternAnimation/ReBoot'' (Also a GreenLanternRing), such as Bob's Glitch.
* ''WesternAnimation/GaltarAndTheGoldenLance'': The title weapon is somewhere between this trope and SwissArmyWeapon as it starts off as a [[RetractableWeapon stick that looks like a pair of collapsed pummels]], extends into a [[DoubleWeapon double-sword/lance]], can [[BifurcatedWeapon bifuburcate into a pair of swords, or recombine into a more powerful sword]].
* The Bayard sidearm from ''WesternAnimation/VoltronLegendaryDefender'', which goes from a knuckleduster-like standby mode, to a HardLight projected weapon [[EmpathicWeapon fit for its Paladin wielder.]] [[spoiler:BigBad Emperor Zarkon, the original Black Paladin ten millennia back, kept his Bayard when he betrayed his team. He's shown to be able to access multiple weapon modes, including (but likely not limited to) a cutlass, energy shield, {{BFG}}, chain whip, giant mace, ''and'' {{BFS}}!]]
* ''WesternAnimation/TransformersRobotsInDisguise'' has Decepticon Hunters, able to take the form of any weapon the wielder can think of. Each of the team has his or her preferred mode, but will use other forms as needed.
* Lord Dominator from ''WesternAnimation/WanderOverYonder'' can morph the gloves on her armor into any sort of weapon she desires, but usually sticks to just shooting blasts of lava [[spoiler:and icicles later on.]] In 'The Battle Royale', she contemplates about what one to use to make her grand entrance (quoted above).

[[folder:Real Life]]
* The [[https://www.youtube.com/watch?v=kS7X_1t0Hvw CardShard Credit Card Knife]] is a knife which can transform into a card. One day, we'd have to pay attention to [[DeathDealer people playing with cards]].