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[[quoteright:275:[[ComicBook/SpiderMan http://static.tvtropes.org/pmwiki/pub/images/ironspiderlegs_6675.jpg]]]]
[[caption-width-right:275:Spider-Man, Spider-Man\\
Now he walks like a spider can...]]
[-[[caption-width-right:275:[[http://www.deviantart.com/art/Iron-Spider-Man-Misda-colors-302841391 Image]] by [[http://spiderguile.deviantart.com/ SpiderGuile]]]]-]

->'''Flint Marko:''' So, uh, Doc, what's with the arms?\\
'''Dr. Otto Octavius:''' These? Well, uh, well, they allow me to multitask, manipulate different objects, (''quietly'') and of course maintain a safe distance...
-->-- ''WesternAnimation/TheSpectacularSpiderMan''

Spiders are creepy. People with spider legs growing out of their body much more so. [[PowerUpgradingDeformation It does have a few perks, though]]. Characters who have an extra set of spidery appendages can often use them to scuttle about on walls and ceilings freely, [[InASingleBound jump great distances]], and [[PotentialApplications even]] [[MundaneUtility reach the jar of cookies hidden on the top shelf]]!

These spider limbs can also be used instead of walking on human legs, giving the character an extra meter or two of height, and almost seeming to [[PowerFloats float]]. These limbs can be of any make. Maybe they're ArtificialLimbs, CombatTentacles with MundaneUtility, or even inky tendrils born of the deepest darkness. Though for some reason they're always attached/growing out of the small of the back.

The limbs aren't usually prehensile, but some of the stranger variants are equipped with claws, hands, or cartoon strength static cling that allows the limbs to manipulate objects. Likewise, tentacle rather than spider based limbs can also be used as {{Tentacle Rope}}s.

Usually, this is exclusively a case of BadPowersBadPeople due to the spider/octopus/tentacle factor. Still, there are cases of DarkIsNotEvil.

Not to be confused with MultiArmedAndDangerous, but may overlap if the extra combat arms can also be used to scuttle around.

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!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* The Diclonii's 'Vectors' in ''ElfenLied.''
* Medusa in ''SoulEater'' utilises this as well, as part of her snake/arrow themed powers. She can balance on her tail and create many "snake" arrows that sprout out of her back, among other uses.
* In ''BusouRenkin'', Tokiko's busou renkin, the Valkyrie Skirt, takes on the form of four scythe-like blades that latch onto her legs and are controlled by nerve impulses through her skin. She can use them to move over difficult terrain, as well as climbing up walls and ceiling.
* ''Manga/InuYasha'' BigBad Naraku and his CombatTentacles fall into this category. Though there is a certain element of BodyHorror for sure, the underlying theme is definitely arachnid in nature [[spoiler: as he was once a human named Onigumo (demon spider)]] and all of his incarnations manifest a spider on their backs.
* Nakua from ''Manga/PrincessResurrection'' and ''Manga/NaquaDen'' does this by growing turning her hair into spider legs to either attack someone or just doing something mundane.
[[/folder]]

[[folder:Comic Books]]
* ''ComicBook/SpiderMan'' in all his incarnations has a lot of instances of this trope.
** Firstly, there's arch enemy ComicBook/DoctorOctopus.
** Then there's the PoweredArmour [[ComicBook/IronMan Tony Stark]] gives Spider-Man in the ''ComicBook/CivilWar''.
** There's also Midnight Sons rogue Spider-X, who has boney spider-limbs.
** Pre-dating the ''ComicBook/CivilWar'' Iron Spider armor, a possible future Spider-Man was shown to be a genius with PoweredArmor using a similar system to Doc Ock's. Interestingly, the future Goblin serving as his nemesis had equivalent technology on ''her'' armor as well.
** The ComicBook/SuperiorSpiderMan has added similar waldoes to his second costume. [[spoiler:Makes sense, since he's actually ComicBook/DoctorOctopus [[GrandTheftMe after stealing Spidey's body and life]].]] They are destroyed during the [[GrandFinale "Goblin Nation"]] arc.
** The third and fourth ComicBook/SpiderWoman both possessed these at different points. Originally they were a power of Charlotte Witter (Spider-Woman IV), as a result of [[LegoGenetics genetic manipulation]] by Doc Ock. After a lot of back-and-forth [[AllYourPowersCombined power-stealing]], the limbs -- [[SuperpowerLottery along with the other powers of all three other "Spider-Women"]] -- ended up with Mattie Franklin (Spider-Woman III).
** This has happened to Spidey before, but he managed to cure his condition thanks to the help of Dr. Curt Connors (a.k.a. the Lizard).
* The ''ComicBook/XForce'' villain Forearm was so-named because... well, you can figure it out.
* The villain Mojo from the ''ComicBook/XMen'' series moved around on robotic spider legs as his species has no spine.
[[/folder]]

[[folder:{{Film}}]]
* ''Creator/JohnCarpenter'''s ''Film/TheThing1982'' features a scene with a disembodied head growing a set of SpiderLimbs after its original infected corpse becomes compromised.
* Humma Kavula, from the film version of ''Film/TheHitchhikersGuideToTheGalaxy''
* Mr. Waternoose from Film/MonstersInc
[[/folder]]

[[folder:{{Literature}}]]
* In ''Quest for the Fallen Star'', the "Tenebrite" variant of [[EldritchAbomination Ill-creature]] is usually humanoid, but can [[PartialTransformation morph]] its lower body into a set of spider legs.
* While he doesn't possess any extra limbs, titular character The Arm from Nancy Farmer's ''The Ear, the Eye, and the Arm'' looks decidedly creepy thanks to his extra-long limbs. When he decides to ramp that effect up a bit, he unhinges them a little and crooks them in odd ways; he even uses this to scare some primitive tribesmen into thinking he's a boogie man.
* In the ''TabletopGame/{{Warhammer 40000}}'' novel series ''Literature/SoulDrinkers'', Sarpedon's mutation is his legs turning into eight large spider-like legs. They prove to be extremely useful as the series progresses, and after Sarpedon is captured by the Imperial Fists, an Apothecary remarks that he finds Sarpedon's inhuman pelvic structure fascinating and looks forward to hanging it on his wall after Sarpedon's execution.
* Mordred Deschain from ''Franchise/TheDarkTower''. Look at [[http://upload.wikimedia.org/wikipedia/en/3/3b/Mordred.png the picture of him]] from TheOtherWiki.
[[/folder]]

[[folder:LiveActionTelevision]]
* The ''Sci Fi Science'' episode "How to Build a [[PoweredArmor Super Suit]]" had Dr. Michio Kaku's design, which included a pair of extensible robotic arms attached to the back and controlled by the user's brain. Dr. Kaku even [[OneOfUs mentioned Dr. Octopus by name]]. The arm control system is fully within the realm of current, or at most, TwentyMinutesIntoTheFuture science. A early version's been done with chimpanzees.
* The [[http://tardis.wikia.com/wiki/Spider_Dalek Spider Dalek]] emerged while developing a proposed revival of ''Series/DoctorWho'' in the mid-1990s.
* The demons who were Jasmine's previous worshipers in season 4 of ''Series/{{Angel}}'' had lower bodies with four of these type of legs.
[[/folder]]

[[folder:TabletopGames]]
* The Fiends (Neberu) in ''TabletopGame/DemonTheFallen'' are associated with spiders (since they were the ones who "webbed" the entire universe together on the Fourth Day of Creation) and therefore prone to growing an extra pair of hands in their High-Torment Apocalyptic Forms.
* In ''TabletopGame/{{Exalted}}'', the Terrestrial Circle Sorcery spell Lightning Spider gives the caster eight extra spiderlike limbs ''made of lightning!''
** While Alchemicals can achieve this with Manifold Transhuman Implants, the signature Apostate has modified himself into a full-on mechanical drider.
* ''The Book of Vile Darkness'' sourcebook for ''DungeonsAndDragons'' has a spell that gives the caster a set of four giant spider legs. This lets them climb, move quicker, and raise their body out of the way of enemy attacks.
** Around the same time, the Song and Silence sourcebook also featured the Fang of Lolth prestige class, which culminated with fully functional Half-Human(oid) Hybrid/Spider limbs.
* In the ''TabletopGame/{{Infernum}}'' D20 setting, this is the effect of the first mutation for the [[MeaningfulName Chain of the Spider]]. The demon (or fallen angel, or corrupted human) sprouts a number of secondary appendages to give them eight limbs in total -- of themselves, however, they simply make it easier for the character to climb; it takes the Chain of Multiple Arms mutations to make them strong enough to be used in combat or for tasks.
* ''TabletopGame/{{Warhammer 40000}}'':
** Occasionally found on tech-priests of the Imperium. Mechandrites, which are cybernetic tentacles tipped with various useful things (manipulators, specific tools, weapons, etc) are a de-facto cyber implant amongst their ranks.
** Techmarines (Space Marines who also function as tech-priests) often have a large servo-harness mounted on their power armor with multiple grasping arms.
[[/folder]]

[[folder: VideoGames]]
* Andariel, the first boss from ''VideoGame/DiabloII'' features four spider legs growing from her back, but they're only used for attacking.
** Ditto for Kerrigan, the Queen of Blades in ''VideoGame/{{Starcraft}}''.
* The Jedi Kazdan Paratus in ''StarWars: TheForceUnleashed'' is a rare heroic example...except he's gone senile and insane, making him all too creepy.
* Laughing Octopus from ''VideoGame/MetalGearSolid4'' is a rare exception to the small-of-the-back rule; her CombatTentacles come from the top of her head, leaving her body dangling down when she uses them to move around.
* Mimi's NightmareFuel form from ''VideoGame/SuperPaperMario.''
* Ares from ''VideoGame/GodOfWar'' uses this in the climactic duel against Kratos.
* Lord Recluse, the BigBad in ''VideoGame/CityOfHeroes'', and quite a few of his minions.
** Villain players get their own set if they use the appropriate archetype.
* Alice Moonlight, a later boss from the sequel to ''VideoGame/NoMoreHeroes'' has these tipped with ''[[LaserBlade beam katanas]]''. One of her attacks even ends with her in a position that makes her look very much like a spider.
* The first really [[BodyHorror messed-up]] boss in ''VideoGame/SurvivalCrisisZ'' has spider limbs growing from the stump of its neck (its head having [[YourHeadAsplode exploded]] within a minute of its being introduced). The legs hoist it in midair and allow it to rapidly chase you around the room, even as it [[OverdrawnAtTheBloodBank fountains gallons of blood from its neck]]. [[SurrealHorror It's that sort of game]].
* Yagrum Bagarn, the last of the Dwemer race in ''VideoGame/TheElderScrollsIIIMorrowind'' became infected with the corprus disease. Unable to walk under his own power due to its ravages, he constructed a series of mechanized spider legs to carry his bloated form.
* Urgot the Headman's pride, from ''VideoGame/LeagueOfLegends'', was [[WeCanRebuildHim rebuilt like that]].
* A few of the [[VideoGame/EpicMickey Beetleworx]] have these.
* The Fiend Spider Ninjas in ''NinjaGaiden II'' have four large spiked SpiderLimbs protruding from their backs, which are used to [[RazorWind great effect.]]
[[/folder]]

[[folder: WebComics]]
* Gynette from ''Webcomic/StubbleTrouble'' is a shape-shifting, centauroid, half-spider jackal.
* ''Webcomic/GirlGenius''
** A couple of background characters are like this, apparently double amputees who use them as mobility prosthetics. Given that the whole backdrop is of a pseudo-Europe which has been in a state of low-level warfare for an indefinite period, ItMakesSenseInContext.
** Agatha's [[http://www.girlgeniusonline.com/comic.php?date=20060515 exoskeleton]], used to get a good night's sleep despite Zetha's wish, also gives off this vibe. [[http://www.girlgeniusonline.com/comic.php?date=20060519 especially when it pulls out the weaponry.]]
[[/folder]]

[[folder: WebOriginal]]
* The Beldrobbaen clan in ''{{Drowtales}}'' 'verse contains several members who carry giant spiders on their backs, most notably the leader Waes'soloth and her daughter Naal'suul.
** And the [[HalfHumanHybrid driders]] too. Much like centaurs, only with drow for top and giant spider for bottom. [[MundaneUtility They can even make clothes with the silk]].
* In some of its incarnations, the SlenderMan is capable of growing extra, amorphous limbs from his back.
* Doctor Octogonapus (who is, after all, ''TheLazerCollection'''s resident [[SpiderMan Doctor Octopus]] {{Expy}}). Also, [[spoiler:Randall, after discovering that [[LukeIAmYourFather Doctor Octogonapus is his father]].)]]
* Arachne of the WhateleyUniverse can manifest Spider Limbs along with her normal human limbs. She can also grow more spider-y in other ways when she chooses to, but she routinely is stuck with spider fangs that leak poison when she gets excited.
[[/folder]]

[[folder: WesternAnimation]]
* Irken's [=PAKs=] in ''WesternAnimation/InvaderZim'' can [[TelescopingRobot extrude these]] on command. He has a strikingly matter-of-fact handling of these (to-him) familiar tools. They are likely purely instinctual. There's one episode when Zim's right next to something blowing up, and when the smoke clears you can see his spider arms in the same position as his actual arms, trying to shield himself from the blast.
* The ''WesternAnimation/TeenTitans'' cartoon often has Gizmo zipping around on four mechanical legs. Kinda like Doc Ock, but they only have about three joints each.
** Does Fang count? He uses four giant spider legs to carry himself rapidly across any sort of terrain and to hoist himself out of reach of his enemies. Of course, they don't sprout from his back, per se, but from the abdomen of the mutant giant spider that has ''replaced his head''. The humanoid body just sorta ''hangs there,'' waving around limply, as it's pulled around by the spider legs.
* In ''WesternAnimation/SpiderManTheAnimatedSeries'' Spider-Man once grew four extra arms. This is based in a story from the comics.
* One of the villains in ''WesternAnimation/TheSecretSaturdays'' can transform into a humanoid spider with legs growing out of his back.
* ''WesternAnimation/DarkwingDuck''
** A MonsterClown toy once features these, and they end in [[AnAxeToGrind rather large axes]] to boot. It was probably [[NightmareFuel the creepiest thing]] [[VillainousHarlequin Quackerjack]] ever made. The kicker? It is made by an AlternateUniverse counterpart who was actually ''a good guy''.
** Darkwing Duck himself, in the episode "Aduckyphobia", receives a radioactive spider bite that granted him two extra pairs of arms, though they seem to have minds of their own (he gets the hang of it when he learns they respond to verbal commands). The Spider-Duck costume is pretty sweet.
* [[SuperMode Ulimate]] Spidermonkey in ''WesternAnimation/Ben10UltimateAlien''.
* Having the alternate forms of spiders, Tarantulus and Black Arachnia from ''WesternAnimation/BeastWars'' naturally have these. Theirs come with machineguns.
* Nidhiki in ''{{Bionicle}} 2: Legends of Metru Nui'' has been mutated to have four arachnid legs.
* Airachnid in ''WesternAnimation/TransformersPrime'' has six legs sticking out her back, and she switches from bipedial to... uh, hexapedal at will. She later gains a helicopter as her altmode.
* In the two-part fourth season finale of ''StarWarsTheCloneWars'', [[spoiler: Darth Maul]] returns after being presumed dead for many years with his lower half replaced by mechanical spider legs. He has these briefly before they are replaced by more human-like legs.
* In ''WesternAnimation/CodenameKidsNextDoor'' the character Numbuh 513, [[FanNickname otherwise known as Scarf Girl]], from the E.N.G.L.A.N.D. episode, uses said scarf very much like how Doctor Octopus uses his own tentacles.
* ''WesternAnimation/AlphaTeensOnMachines'' which is a sequel series to ''WesternAnimation/ActionMan'' (Just don't ask which continuity) had the MadScientist of the FiveBadBand with spider legs, as a Doctor Octopus homage.
[[/folder]]

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