%%%
%%
%% This page has been alphabetized. Please add new examples in the correct order. Thanks!
%%
%% Administrivia/ZeroContextExample entries are not allowed on wiki pages. All such entries have been commented out. Add context to the entries before uncommenting them.
%%
%%%

[[quoteright:330:[[Webcomic/GirlGenius https://static.tvtropes.org/pmwiki/pub/images/FunSized.jpeg]]]]
[[caption-width-right:330:The Fun-Sized Mobile Agony and Death Dispenser, order yours today!]]

->''"The master of the Goblin blacksmiths offered to build the king a golden mechanical army. Seventy times seventy soldiers that would never know hunger, and could not be stopped."''
-->-- '''Tale of the Golden Army''', ''Film/HellboyIITheGoldenArmy''

So your MechaMooks aren't cutting it? What's the next logical step up from taking the already impressive stamina, loyalty, and destructive power of a mechanical henchman?

Simply, you go absolutely off the wall with them. Where the mecha-mook will be a dime a thousand, you'll see only a few, or only one, Mechanical Monster. This may be due to [[OffscreenVillainDarkMatter limited resources]] or simply because [[NoPlansNoPrototypeNoBackup everyone involved in making it is no longer amongst the living]]. They are always [[ImplacableMan improbably hard to stop]], [[SuperPersistentPredator incredibly persistent]], [[PerpetualMotionMonster never needs to recharge]] and always, ''always'' terrifying to look at. Very likely to be the big bad's [[TheDragon Dragon]], and often times much tougher to kill.

While mecha-mooks are often fragile, incompetent, and generally gentle at their jobs, expect the Mechanical Monster to be far less kind to its prey. Slashing, stabbing, soul-stealing to fuel their infernal engines, and [[ArsonMurderAndJaywalking loud noises]] are all par for the course. Lastly, in extreme cases, it may also be much bigger size-wise than a standard mecha-mook, with some even doubling as HumongousMecha opponents.

MechanicalAbomination is when it goes to EldritchAbomination levels.

See also HomicideMachines, OurMonstersAreDifferent, {{Robeast}}, CyberneticMythicalBeast, ClockworkCreature, MechanicalAnimals.

----
!!Examples
[[foldercontrol]]

[[folder:Anime and Manga]]
* ''Anime/Daitarn3'': The Megaborgs, although they start out as less-monstrous Meganoids before mutating themselves.
* ''Manga/GetterRobo'':
** ''Shin Getter Robot'' is a rare heroic example, at least in the original manga arcs (its more monsterish aspects get ''severely'' toned down in other appearances such as ''VideoGame/SuperRobotWars'' or the getter [=OVAs=]).
** Mechasauruses and Mecha Oni play it straight, though: the former ones are robotic dinosaurs, and the seconds are horned, demonic-looking mechanical beasts.
* ''Anime/{{Kakurenbo}}'': The "oni", which resemble giant animatronic puppets.
* ''Anime/KotetsuJeeg'': The Haniwa Phantom Gods, mechanical monsters animated through magic means and resembling mythological creatures or evil spirits.
* ''Mazinger'':
** The MonsterOfTheWeek MechaMooks in ''Anime/MazingerZ'' are called "Kikaijuu", which is made of the words for "machine" and "monster" in Japanese.
** Then you have the Mykene War Beasts ("Sentoujuu") in ''Anime/GreatMazinger'', Mykene soldiers grafted into gigantic mechanical bodies. The're shaped like humanoid warriors, evil spirits, mammals, birds, reptiles, fishes or insects.
** The Saucer Beasts and Vega Monsters from ''Anime/UFORoboGrendizer''. They are animalistic mechanical monsters resemble flying saucers pre-transformation.
* ''Anime/MobileSuitGundamIronBloodedOrphans'' has the Hashmal, one of the Mobile Armors responsible for the Calamity War that saw a quarter of humanity decimated. As opposed to the humanoid-shaped piloted Mobile Suits (which were originally built to fight Mobile Armors), Hashmal is a completely autonomous machine with a monstrous appearance designed with only one purpose: to kill all humans. It is accompanied by its own army of insectoid machines known as Plumas that can ZergRush any opposition in addition to keeping the Hashmal itself functional. Further adding to its monstrous nature is its name, which is taken from an [[AngelicAbomination angel]] as opposed to the Gundam Frames, which are named after demons. To further emphasize how dangerous it is, the Hashmal also has a [[EnergyWeapon beam cannon]], a rarity in a series where KineticWeaponsAreJustBetter: while the beam cannon won't necessarily destroy a Mobile Suit thanks to its nanolaminate armor, it's plenty useful for vaporizing humans and destroying cities.
* ''Manga/OnePiece'': The Pacifistas. These guys are made of an incredibly hard material, making them [[NighInvulnerability nigh-invulnerable]] to typical physical attacks, possess [[EnergyWeapon Frickin' Laser Beams]] in a story that presumably takes place in the [[AnachronismStew 15th century]], and share the appearance and physical strength of [[BearsAreBadNews Bartholomew Kuma]], one of [[TheDreaded the most feared men in the One Piece world.]] It's said that one of these things is the equivalent of a ''battleship'', and it took all of the main characters working together with everything they had to beat a single one pre-TimeSkip. {{Double subver|sion}}ted after said Time Skip. Two Pacifistas fall victim to TheWorfEffect to demonstrate how powerful the Straw Hats are now, [[CurbstompBattle proving to be absolutely no challenge for them anymore]]. However, immediately after that, it's been stated that there are far more powerful Pacifista out there now, although they haven't been shown nor has it been stated exactly what's improved over the originals.
* ''Manga/Reborn2004'': Gola Mosca. It is powered by [[spoiler:the LifeEnergy of the Ninth Vongola Boss]].
%%* ''Anime/RobotRomanceTrilogy'': The standard MonsterOfTheWeek:
%%** The bio-mechanical Slave Monsters and Magma Beasts from ''Anime/CombattlerV''
%%** The Beast Fighters and later Super Beast Fighters from ''Anime/VoltesV'', resembling robotic Earth animals.
%%** The Battle Robots and Mecha Warriors from ''Anime/{{Daimos}}''.
* The manga ''Manga/SeiketsuNoHagurama'' has a literal blue-blooded prince and GadgeteerGenius construct SteamPunk looking machines like a [[http://www.mangahere.com/manga/seiketsu_no_haguruma/c001.1/16.html whale-shaped ship]] and a [[http://www.mangahere.com/manga/seiketsu_no_haguruma/c001.2/22.html pilot-ridden, steam-blowing minotaur]] whom he thought were being used for peaceful purposes (but were actually used to eradicate the remaining red-blooded people by his father and king).
* ''Anime/TheUltraman'' has its share of mechanical behemoths battling Ultraman Joneus, including the cobra-like Janyur (later resurrected into the three-headed Janyur III) and the shapeshifting robot dragon Dragodos which can alternate between dragon and FlyingSaucer form. In both instances, the monsters are thought to be mere malfunctioning machines until it's later revealed that [[ItCanThink they are intelligent, capable of forming strategies to counter Ultraman Joneus, and are in fact quite sentient]].
* ''Anime/{{Voltron}}'': Nearly every episode of the American translations -- both for the lion-team Voltron and the vehicle-team Voltron -- culminates in a fight against a giant enemy [=RoBeast=]. Once or twice on the vehicle-team Voltron show, these robotic engines of destruction are shown with normal-sized pilots inside. (Since this was a NeverSayDie translation, the pilots were themselves android stormtroopers.)
%%* ''Anime/Zambot3'': The Mecha Boosts.
[[/folder]]

[[folder:Comic Books]]
* ComicBook/{{Batman}} has a robot dinosaur in the TrophyRoom of the Batcave, a souvenir of a case called "Dinosaur Island".
%%* ''ComicBook/FantasticFour'': Doctor Doom has one, [[http://marvel.wikia.com/Doomsman_II_(Earth-616) The Doomsman]].
* In ''ComicBook/GothamCityGarage'', Lex Luthor has the giant robot Amazo which Kara Gordon, Dick Grayson and Selina Kyle bump into when they break into a Luthor's secret base.
* In Creator/MarvelComics's [[MerchandiseDriven toy tie-in]] comic ''The Toys/{{Starriors}}'', the title characters are about evenly split between semi-humanoid robots and animal and dinosaur-shaped ones. They're all perfectly sentient.
* ''ComicBook/TheTransformersMarvel'' features the Guardian Units, which are bright yellow, ridiculously huge by Cybertronian standards, and have a distressing tendency to turn against their owners. They are also incredibly over-powered and very strong, to the extent that even one of them is enough to give [[BigGood Optimus Prime]] trouble. They reappear in ''ComicBook/TheTransformersMoreThanMeetsTheEye'' when an army of them is sent up against Overlord, [[TheWorfEffect who quickly ploughs through them]].
[[/folder]]

[[folder:Films -- Animation]]
* ''WesternAnimation/{{Nine}}'': The villains fit the bill, being a collection of animal-like robots sent to hunt down and destroy the protagonists, and all of them are appropriately horrific. The Big Bad, [[BuffySpeak the huge, multi-armed artificial brain thing]], ''definitely'' fits the bill.
* ''WesternAnimation/AtlantisTheLostEmpire'': The Leviathan is a {{Magitek}} version of this, somewhere in the vicinity of a ''couple miles long'', [[PerpetualMotionMonster capable of staying intact without recharging for thousands of years]], [[TheJuggernaut immune to direct torpedo hits]] and equipped with shearing claws and a particle beam-like BreathWeapon. Only one of them still functions by the time the heroes arrive at the gateway to Atlantis -- there used to be an entire fleet of them back in Atlantis' heyday that had the ability to fly as well-- but it's more than enough to trash their sub and kill over a hundred people.
* ''WesternAnimation/DragonRider'': The villianous metal Dragon-eating monster Nettlebrand.
* ''WesternAnimation/TheIncredibles1'' sports the Omnidroid. [[spoiler:Developed and controlled by the BigBad by evolving the design from pitting it against retired superheroes, the robot is extremely intelligent, fast, extremely deadly, and invulnerable to just about anything except weapons made from the robot's own tough metal.]]
* One of the WesternAnimation/SupermanTheatricalCartoons is actually titled "WesternAnimation/TheMechanicalMonsters", featuring a MadScientist with a small army of robots that he built to steal for him. They have twisted, ogre-like forms, grasping claws, a stilted range of motion, and eye-mounted flamethrowers.
[[/folder]]

[[folder:Films -- Live-Action]]
%%* ''Film/TheBlackHole'': Maximillian pretty much takes this to horror territory.%%How?
* ''Film/DeathMachine'': The Warbeast is essentially a ten-foot tall, nigh-invulnerable collection of hydraulics, claws, and teeth. Given that its creator was very much a MadScientist and its official role would be a "Frontline Morale Destroyer", it's intentional.
* ''Franchise/{{Godzilla}}'': The original Showa-era [[EvilKnockoff Mecha-Godzilla]] was a vicious alien robot built with the intent of first discrediting, and then killing Godzilla. Powerful enough to battle Godzilla and King Caesar at the same time, the robot proved a match for anything that the more heroic kaiju could throw at it.
* ''Film/HellboyIITheGoldenArmy'': The title Golden Army. Saved from being simple MechaMooks by their sheer hardiness and a [[PullingThemselvesTogether self-repair function]].
* In ''Film/RedSonja'', the bad guys unleash a killing machine in the form of a robotic alligator. It's completely invulnerable to the heroes' weapons, except for the eyes, which they manage to carve out while it's thrashing about.
* ''Film/{{Runaway}}'': The small attack "bugs" may be the most realistic examples around: their compact six-legged design was based on real state-of-the-art robotic prototypes of the time. Not as formidable-looking as others on this page, but their ZergRush tactics and acid-injectors make up for it.
* ''Franchise/StarWars'': The Droideka model of battle droid from the prequel trilogy. These fun bots often give the Jedi a run for their money, and amply earn their in-universe status as TheDreaded.
* The giant Harvester from ''Film/TerminatorSalvation'' most definitely counts, as would the semi-humanoid tanks from the earlier ''Franchise/{{Terminator}}'' movies.
[[/folder]]

[[folder:Literature]]
* ''Literature/Fahrenheit451'': The Mechanical Hound, an assassination tool used by the authorities. It's never described in full, only that it moves too silently for a truck sized machine with eight spider-like legs, and it has a proboscis meant for injecting lethal doses of morphine into its targets. The only reason it can be called a hound at all is because it's a SuperPersistentPredator that tracks through scent.
* ''Literature/ForgesOfMars'': The Tindalosi are robotic hellhounds designed to be unstoppable killing machines. They’re strong, fast, intelligent, heavily-armed, and can quickly repair any damage they take. When the BigBad unleashes them to hunt down Kotov, they tear through a squad of Howling Banshees and give the [[SuperSoldier Black Templars]] some serious trouble.
* ''Franchise/StarWarsLegends'':
** ''Literature/GalaxyOfFear'': Tash and Zak Arranda are menaced by [[spoiler:a simulation]] of one of these in ''The Nightmare Machine''.
** ''[[Literature/StarWarsRazorsEdge Razor's Edge]]'':
*** During the BigBad Viest's BloodSport "test," she drops a large barrel-shaped mining droid reprogrammed for rage and insanity into the playing field. Its cutting and digging arms attack the players, killing a RedShirt and injuring Leia, its "sampling oriface" roars at them, and it more-or-less defeats itself by getting partially caught in an ore crusher.
*** Later, Leia and the ''Aegis'' crewmembers find Viest's technician attempting to repair the droid, and they commandeer it to rampage through the SpacePirates' command center at an opportune moment. This backfires on them when it gets too close to the bomb they had rigged to blow up said command center, setting it off early.
[[/folder]]

[[folder:Live-Action TV]]
* ''Series/DoctorWho'': The Raston Warrior Robot in "[[Recap/DoctorWho20thASTheFiveDoctors The Five Doctors]]". Built as the ultimate killing machine, a single one is able to destroy an entire squad of Cyberman without taking a scratch in return.
* ''Franchise/KamenRider'':
** ''Series/KamenRiderDrive'' has [[MonsterOfTheWeek Advanced Roidmudes]], the forms taken by [[KillerRobot Roidmudes]] who've successfully evolved through use of a Viral Core, granting them a monstrous form and special powers.
** ''Series/KamenRiderRyuki'' and ''Series/KamenRiderDragonKnight'' has the vicious MirrorMonster[=s=] of the supernatural variety.
* ''Series/{{Lost}}'': Not a straight example, but the [[ItWasHisSled Smoke]] Monster mixes mechanical noises (cranking, whirring) in with its biological noises (roaring, growling). Because it has no moving parts (being an amorphous cloud of black vapor), it is not clear where any of these noises are coming from. The most popular {{Fanon}} theory is that it generates these noises arbitrarily to frighten people.
* ''Series/ThePrisoner1967'': If [[Series/{{Lost}} the Smoke Monster]] counts, then its grandfather [[http://en.wikipedia.org/wiki/Rover_%28The_Prisoner%29 Rover]] deserves a mention too. It's a white floating plastic sphere, and acts as a security device for the Village, but it's also ''alive'' somehow; it roars and groans and has a mind of its own, even killing the wrong person once. Rover was originally a straighter robotic example of the trope, but it [[SpecialEffectsFailure didn't work very well]] during the initial stages of filming.
* A very early example of this trope in live-action television appears in ''Series/SpiderManJapan'', where the [[MonsterOfTheWeek Monsters of the Week]] are called the Machine [=BEMs=] (Bug-Eyed Monsters).
* ''Franchise/SuperSentai'': Whenever the enemy group is mechanical in nature, there is a high chance the [[MonsterOfTheWeek Monsters of the Week]] they employ are this trope. Examples are the Machine Beasts of ''Series/ChourikiSentaiOhranger'' (adapted into Machine Empire monsters in ''Series/PowerRangersZeo''), the Barbaric Machine Beasts of ''Series/EngineSentaiGoOnger'' (adapted into the Venjix Attack Bots in ''Series/PowerRangersRPM'') and the Metaroids of ''Series/TokumeiSentaiGobusters'' (adapted into the Robotrons in ''Series/PowerRangersBeastMorphers'').
* The ''Franchise/UltraSeries'' have numerous robot-based kaiju terrorizing Earth, for the Ultra-warriors to defeat every once in a while.
** ''Series/{{Ultraseven}}'': King Joe and Crazygon are robotic monsters sent by alien invaders who gives Ultraseven a hard time to defeat in their respective episodes.
** ''Series/ReturnOfUltraman'': Builgamo is an {{Expy}} of Crazygon who goes on an unstoppable rampage, and Ultraman Jack needs to figure out a way to defeat the monster without killing his allies trapped in the monster's core.
** ''Series/UltramanTaro'' concludes his run with the battle against Grand King, the mecha-behemoth monstrosity sent by Juda, who nearly defeats the Ultra Brothers until Ultraman Taro managed to unlock his GoldenSuperMode.
** ''Series/UltramanLeo'' has Gamelot, originally created by an alien race for peacekeeping purposes, but suddenly decide to [[TurnedAgainstTheirMasters turn against it's creators]] and wipe out it's home planet, before hunting the father and daughter pair of scientists who created it all the way to Earth.
** ''Series/UltramanEighty'' has Mechagiras and Zatan Silver, sentient robots unleashed by alien invaders, who continues their rampage even after their alien masters are killed.
** ''Series/UltramanTiga'' gets to battle more than one of these, including Ligatron (a spaceship hit by cosmic energy and morphing into a mechanical beat), Guwam (who captures Tiga's ally Reina in it's forehead, giving Tiga a hard time in battle), Faivas (a classic AIIsACrapshoot example) and Geoshark (a completely mechanical LandShark created by a rogue scientist).
** ''Series/UltramanDyna'': Terranoid from the last arc was originally a mechanical clone of Ultraman Dyna, who ends up being affected by the Sphires and going on an unstoppable rampage.
** ''Series/UltramanGaia'' has a trio of ancient machines, Enzan, Tenkai and Shinryoku, who upon reactivation is dedicated to reset all life on earth, and the mecha Σ-Zuigul who captures Ultraman Gaia's human host Gamu, stripping him from his transformation powers necessitating Ultraman Agul to save him.
** ''Series/UltramanCosmos'' has Hellzking (an {{Expy}} based on King Joe listed above), Sidebackter (an {{Expy}} based on Gamerot) but there's also Igomas, a non-violent, peaceful toy kaiju which only goes on a rampage due to a malfunction in it's design.
** ''Series/UltramanMebius'' have multiple episode story arc featuring the nigh-unstoppable [[TheJuggernaut juggernaut]] monster, Imperializers, sentient humanoid machines which can absorb plenty of hits from Ultraman Mebius, and even reassemble itself after being blown up. Even with the assistance of Ultraman Taro, it still takes three episodes to finally defeat Imperializer.
** ''Film/UltramanZeroGaidenKillerTheBeatstar'' has it's BigBad, the titular Beatstar, who commands an entire army of Mecha-monsters, including numerous units of the aforementioned King Joe and Imperializers.
** ''Series/UltramanOrb'' introduces Galactron, a mechanical dragon-beast originally used for peacekeeping purposes, but upon gaining sentience, ultimately decides the best course to preserve peace is to wipe out all life in the universe. The following installment, ''Series/UltramanGeed'', would conclude with a revelation that the Galactrons are mass-produced under their master, Gilbaris.
[[/folder]]

[[folder:Tabletop Games]]
* ''TabletopGame/DungeonsAndDragons'': There are several [[CallARabbitASmeerp "constructs"]] that fit this category, most notably the Hellfire Engine, a GiantMecha made out of cold iron and powered by (as well as shooting) hellfire and the Anaxim, basically the twisted mechanical abortion produced by a god of the forge getting a little too crazy.
* ''TabletopGame/{{Exalted}}'' has its fair share of these, such as the Thousand-Forged Dragons and the Brass Leviathan.
* ''TabletopGame/FabulaUltima'': The Razorbird is a large {{Magitek}} construct resembling an enormous bird of prey. It has razor-sharp feathers with which to make melee attacks and an arsenal comparable to that of a real-world fighter jet, complete with missiles and gatling guns. Militant empires often make use of these machines in their air forces.
* ''TabletopGame/GammaWorld'': Whenever you want to tell your players to [[ThatOneBoss go screw themselves]] in your game, you use the [[ExactlyWhatItSaysOnTheTin Death Machine]], the setting's [[OhCrap mechanical equivalent to the]] [[TabletopGame/DungeonsAndDragons Tarrasque]].
* ''TabletopGame/IronKingdoms'': Warjacks are large (seven to twelve feet tall) steam-powered robots used to protect and assist the setting's Not-So-{{Squishy Wizard}}s. 'Jacking is a form of capital punishment in some countries and, if that wasn't bad enough, the ''WARMACHINE'' {{wargam|ing}}e introduced [[NamesToRunAwayFromReallyFast Deathjack]], a semi-autonomous Orgoth warjack powered by ''souls.''
* ''TabletopGame/MagicTheGathering'': Some of the more impressive artifact creatures easily qualify as this rather than the standard MechaMooks of dragon engines and myr. The main villains of the series, the Phyrexians, have the purpose in life of turning all living things in existence into this, and are themselves a collection of nightmarish, twisted biomechanical monstrosities.
* ''TabletopGame/Warhammer40000'':
** The Dark Eldar [[http://wh40k.lexicanum.com/wiki/Talos Talos]] is a heavily armored floating mechanical scorpion acting as their version of a tank that grabs people off the battlefield and pulls them inside itself to slowly [[ColdBloodedTorture torture them to death]], which [[EmotionEater powers its systems and weapons with their agony and souls]]. On the outside it has various torture implements acting as claws to restrain other victims, then torture and kill them to remove their souls. It also has a cannon in the shape of a tail that fires incredibly corrosive bio-acid.
** The Necrons have the Tomb Stalker, a giant metal centipede with two guns that fire beams of energy that flay you molecule by molecule. If that wasn't enough, it can become incorporeal in order to pursue its targets ''directly through'' the labyrinthine halls of the Necron crypts it guards. It can also sense you coming from literal miles away.
** Chaos has a variety of these as well.
*** Chaos Daemons employ hulking brutes fused to a SpiderTank chassis called Defilers, that have cannons both mechanical and organic in nature. They can also use a form of monstrous Mecha which teleports. As well, Juggernauts are basically half-mechanical half-organic demonic Rhinos. The forces of Khorne additionally have the Lord of Skulls and the Kytan Daemon Engine, the former marrying a humanoid body with a huge tank-like mechanism and the latter being more like a small Titan.
*** Chaos Space Marines have similar bipedal Mecha monsters that were formerly entirely mechanical. They have mechanical dinosaurs with MoreDakka called Forgefiends that are armed with GatlingGood or plasma cannons, or a close combat variety. Last but not least a robotic dragon flyer called Heldrakes that have a gatling cannon or a flamer for a BreathWeapon and adamantium claws which can swoop down and slice tanks in half.
** When they were still a legion and had their primarch Lion running around, the Dark Angels had the Ironwing company which specialized in war engines. If things got ugly, sometimes they'd bring out the Excindio-class Battle Automata which are powerful and vicious robots. Being a mechanical monster is a step down for these machines as they were previously part of the [[MechanicalAbomination Silica Animus that nearly destroyed humanity]].
[[/folder]]

[[folder:Theme Parks]]
* Ride/UniversalStudios' ''[[Theatre/UniversalsHorrorMakeUpShow Horror Make-Up Show]]'' has "Eddie", a mechanical werewolf that ends up coming to life and going rogue at the end of the show.
[[/folder]]

[[folder:Video Games]]
* The Deimos of ''VideoGame/ThirteenSentinelsAegisRim'' certainly fit the description, with them being aggressive {{kaiju}}-like robots with a [[RedAndBlackAndEvilAllOver red and black color scheme]] and [[GlowingMechanicalEyes glowing]] [[RedEyesTakeWarning red eyes]]. Strangely enough, [[spoiler:they are revealed to be construction equipment. Why they are such {{Unnecessarily Creepy Robot}}s is anyone's guess]].
* ''VideoGame/AgentUSA'': The [=FuzzBomb=] from used to be a normal television set, until an experiment GoneHorriblyWrong gave it malevolent sentience (with angry eyes!), and it's now trying to turn everyone in the entire United States into mindless, walking TV static.
* ''VideoGame/BanjoTooie'' has Weldar, the boss of Grunty Industries, and is an unconventional case. He is a giant killer welding torch who can electrify the floor and perform a wide variety of attacks during battle.
* ''VideoGame/CastlevaniaLordsOfShadow'' has a giant robot scorpion BrainInAJar built by Doctor Frankenstein.
%%* ''VideoGame/ChronoTrigger'': The ROB line could be a good example of these. Also, Lavos' core seems very Mecha-esque.
* ''VideoGame/ConkersBadFurDay'':
** Haybot serves as the first major boss in the game (the wasp army from the Windy chapter is the first overall, but they aren't challenged in a proper battle until much later in the game). Initially disguised as a large sentient pile of haystack, the boss's true form is exposed during the second phase of the fight, deep within the basement of the stable. In this form, it is capable of shooting missiles, squashing opponents with its hands, and crushing them. Its weakness is a self-destruct button located in its back, but it has to be pressed three times so the monster is defeated.
** The Big Big Guy is a living orange boiler piloted by a duo of fire imps, and is the second major boss in the game. It can charge at Conker to cause him damage, as well as exhale fire as a flamethrower. Bathing it with fecal debris will stun it, which gives Conker the chance to crush its (literal) BrassBalls with a pair of red bricks. Conker has to do this a total of four times to disable the machine for good and claim victory.
* ''VideoGame/{{Crysis}}'': The alien Hunter. It's a house-sized HumongousMecha with a decidedly inhuman design (looking more like a deep-sea [[GiantEnemyCrab crustacean]]), bristling with {{Freeze Ray}}s and {{Wave Motion Gun}}s. It also has several moving parts on its front, which seem to be there only because they look threatening. Also, it can ''roar''.
* ''VideoGame/Cyberpunk2077'' has [[spoiler: the Cerberus MK-II]], a maintenance robot built for extreme environments. While it is "only" armed with a terminal jack, it's impervious to conventional weapons, fast enough to outrun sprinting augmented humans and can't be hacked; it's the only enemy that ''can't'' be escaped from or killed in the whole game. [[spoiler: One controlled by a murderous rogue AI is the last enemy V will encounter at the end of ''Phantom Liberty'' should the player betray Songbird]].
* ''VideoGame/{{Descent}} 3'' has the Homunculus, which looks like a mechanical version of the Rancor from ''Film/ReturnOfTheJedi''.
* ''Franchise/TheElderScrolls'':
** Among the many [[OurDwarvesAreDifferent Dwemer]] [[MechaMooks Animunculi]] you run into in throughout the series, there are always at least one type of these. In ''Morrowind'', it's the Steam Centurions. In ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'' there are Dwemer Centurions. These things are difficult to kill, hit hard, can end your quest in a few blows if you are careless, and their steam jet is a pretty good approximation of dragonbreath. And as if that was bad enough, ''Skyrim'' also has the Dwemer Centurion ''Masters''. They are twice the size of their lesser brethren, as well as having double the armor and killing power. If '''that''' wasn't enough for you, try the Forgemaster on for size. This unique Centurion boss is even bigger, hits even harder, and instead of a steam breath is armed with an outright '''flamethrower'''.
** In ''[[VideoGame/TheElderScrollsIIIMorrowind Morrowind]]''[='s=] ''Tribunal'' expansion, toward the end of the main quest, you'll be forced to face the Imperfect. The Imperfect is a borderline HumongousMecha, standing easily twice the size of the PlayerCharacter, who serves as a MiniBoss in [[spoiler:Sotha Sil's Clockwork City]]. It has some of the strongest physical attacks in the game and can also use powerful [[ShockAndAwe Lightning]] attacks against you. If you are able to kill it quickly, you can claim the [[TooAwesomeToUse Elixir of the Imperfect]] from its corpse. It's a potion that restores 20 points of Health, Magicka, and Fatigue every second for 15 seconds, essentially giving you god-like abilities for the duration. However, you only get one from the Imperfect, and unless you kill it quickly, ''it will use the Elixir'', making this fight all the more difficult.
* Mechanical bosses aren't too frequent in the ''VideoGame/EtrianOdyssey'' series, because of the fantasy setting, but they exist:
** ''VideoGame/EtrianOdysseyI'': Though the original game averts the trope, ''The Millenium Girl'' remake adds two robotic bosses in the also-added dungeon Gladsheim: The first is Gimle, which is capable of shooting powerful missiles at the player's party even before its boss battle properly begins; and the second is [[spoiler:M.I.K.E., which by the point it's found goes haywire and must be destroyed]]).
** ''VideoGame/EtrianOdysseyIIITheDrownedCity'': The Gatekeeper is a black robot that serves as the boss of the Molten Caves, and aims to protect the entrance to the Abyssal Shrine at all costs (it was originally build by the Abyssal King to prevent outsiders from going further). Its attack repertoire is also very varied, including laser beams and missiles, and its individual parts can be separated to attack more efficiently.
** ''VideoGame/EtrianOdysseyIVLegendsOfTheTitan'': The Cradle Guardian is the KingMook of the robotic F.O.E. that roam the Echoing Library, and is capable of switching its strengths and weaknesses at will. It's summoned by [[spoiler:Prince Baldur, who in that moment is being corrupted by the influence of Yggdrasil, and is kidnapping the Medium to revive the Yggdrasil]].
* ''Franchise/FinalFantasy'': [[{{Superboss}} Omega Weapon]] from is often depicted as this. Other times he's a ''bio''-mechanical monster. The very first ''VideoGame/FinalFantasy'' has fellow {{Superboss}} [[BossInMookClothing in mook clothing]] Warmech, an extremely durable, regenerating, nuke-tossing monstrosity with a DeathRay.
* ''Franchise/{{Halo}}'': [[SpiderTank Scarabs]] are controlled by the same [[TheWormThatWalks alien worms]] that compose [[GiantMook the Hunters]], and have an organic roaring sound.
%%* ''VideoGame/JakAndDaxter'': The Precursor robots, with one of them being piloted by Gol and Maia during their FinalBoss battle. You also get to encounter the occasional Dark Maker robot in ''VideoGame/Jak3''.
* ''Franchise/TheLegendOfZelda'':
** ''VideoGame/TheLegendOfZeldaMajorasMask'' has Goht, whose epithet actually ''is'' (Masked) Mechanical Monster. It's an enormous mechanical goat-like monster that [[GetBackHereBoss constantly runs away,]] and the only way to make it stop after waking it up is to destroy it.
** ''VideoGame/TheLegendOfZeldaTheWindWaker'' has a non-malicious example with Gohdan, an ancient machine created by the gods to challenge the new hero before their access to the biggest secret of the Great Sea.
** ''VideoGame/TheLegendOfZeldaBreathOfTheWild'': The Guardians and the Divine Beasts. The Guardians are massive SpiderTank machines capable of firing extremely strong lasers, while the Divine Beasts are four HumongousMecha shaped like animals. While the Guardians and the Divine Beasts had been built to protect Hyrule, all of them were literally HijackedByGanon 100 years before the game takes place, and have since been a very high threat for the lives of everybody living in Hyrule.
** ''VideoGame/TheLegendOfZeldaTearsOfTheKingdom'': Unlike the standard Soldier Contructs which act as standard MechaMooks, or even the stronger Training Construct minibosses, the Flux Constructs are boss-level threats and ''far'' more dangerous due to their increased strength and attack repertoire, as well as their ability to rearrange their cubical body parts to showcase and exploit various forms. Defeating them requires exposing their weak point and disarming it from the boss so they can inflict damage to it.
* ''Franchise/MassEffect'': Reapers go a bit beyond this into MechanicalAbomination, but they'd have to count the few times you fight one on foot -- most notably Priority: Rannoch, which famously involves syncing up a target pointer to the biggest fleet in the galaxy and having them perform OrbitalBombardment on its weak point. It takes one hell of a pounding to down it, and it's the ''smallest'' type of Reaper -- a mere 160 meters tall[[note]]the same height as [[https://commons.wikimedia.org/wiki/Category:160-meter-tall_buildings all of these tower blocks]][[/note]], unlike its two-kilometer long siblings.
* ''VideoGame/MegaManClassic'', being a robot-based series, has its share of these, mostly as Wily Fortress bosses, most notably [[ThatOneBoss The Yellow Devil]] and all the other Devil series robots.
* ''VideoGame/MetalGearSolid4GunsOfThePatriots'': The Gekko are as much life-form as machine; they're about as smart as an animal, make appropriate sounds when they're in distress, and, of course, have organic legs. They also follow the basic use of the Mechanical Monster trope in that they are much more dangerous and intimidating than a simple robot would be.
* ''VideoGame/MetalSlug 2/X'': Most players wouldn't know what the second boss ([[http://metalslug.wikia.com/wiki/Aeshi_Nero Aeshi Nero]]) is when they first see it. It's a gigantic excavator robot designed to look like a cobra.
* Despite its futuristic setting, the ''Franchise/{{Metroid}}'' series has a bigger focus on large monsters instead of large machines when it comes to bosses and antagonists. However, some cases still exist:
** ''VideoGame/MetroidPrime2Echoes'': Quadraxis, the KingMook of the Quads, is a gigantic quadrupedal automaton that serves as the boss of Ing Hive (the DarkWorld version of Sanctuary Fortress); it was originally a benign creation by the Luminoth, until the Ing corrupted it with the power of Dark Aether. There's also the Caretaker Class Drone, a MiniBoss found earlier in Sanctuary Fortress itself, at the start of a path leading to the Screw Attack.
** ''VideoGame/MetroidPrime3Corruption'': The Defense Drone is a big robot built by the Chozo many decades ago that protects the Boost Ball powerup in Skytown, Elysia. Due to Phazon corruption, it's now hostile and proceeds to attack Samus as soon as she attempts to grab the Boost Ball powerup. Despite its large size, it is capable of performing impressive jumps.
** ''VideoGame/MetroidSamusReturns'': The Diggernaut is a large drilling machine built by the Chozo in [=SR388=]. Initially, it is located in Area 3, but Samus witnesses its activation before it moves away; it later tries to kill Samus in a frantic chase in Area 4. Finally, it confronts Samus in a boss battle in Area 6.
** ''VideoGame/MetroidDread'': The E.M.M.I. are a mix of this trope and XenomorphXerox. They were originally research drones sent by the Galactic Federation to investigate Planet ZDR over rumors of surviving X Parasites, only to then lose contact and be reprogrammed to hunt Samus down [[spoiler:and extract her Metroid DNA for Raven Beak's use]]. Unfortunately for Samus, they are invulnerable to all of her standard arsenal (and the only weapon that can destroy them deactivates after being used on each one), are incredibly mobile, have really sharp hearing, are highly intelligent, and many of the later ones have abilities that make them even more dangerous. If they catch up to Samus and she fails to counter their attacks (which is ''very'' likely, since the timing for the counter is really tight), it's a NonStandardGameOver.
* ''VideoGame/MiniRobotWars'': The Frost Orca is a large, whale-submarine bot that spits out deadly ice balls, has a ''ton'' of health, is more tenacious than the regular mooks, and acts as a BossInMookClothing. [[ArsonMurderAndJaywalking It also practices good dental hygiene]].
* ''VideoGame/ProfessorLaytonAndTheMiracleMask'' has a large robot (only known as "mechamutt", due to its dog-like face) fought in the last regular level of the Toy Robot minigame. Unlike the smaller, weaker dog robots that appear in the other levels, the Mechamutt is large, strong and capable of moving around while covering a wide area, thus being a lot more dangerous. The main character (a small toy robot built by Emmy) has to use a windup key to ram at the monster and damage it (the process has to be done twice to defeat it).
* In ''VideoGame/PuellaMagiMadokaMagicaPortable'', the witch Gisela is a TransformingMecha made of motorcycle parts that can cloak itself in a whirlwind.
%%* ''VideoGame/PuzzleAndDragons'': Some of the monsters, especially the higher-level monsters, are definitely this.%%How?
* ''VideoGame/QuakeIV'': The Harvester {{Spider Tank}}s seem to be partially organic like the aforementioned Scarabs, by the sounds they make. They're easily the most threatening Strogg faced by Kane, being a MiniBoss when on a vehicle and when on foot, an obstacle to be evaded instead of an enemy to be fought.
* ''VideoGame/ShantaeAndThePiratesCurse'' has the Steel Maggot ([[BossSubtitles Patent Pending]]), a giant, [[ExactlyWhatItSaysOnTheTin robotic maggot]] that serves as the boss of the [[TechnoWreckage Abandoned Factory]].
* ''VideoGame/SimCity4'': The Autosaurus Wrecks is basically a ''T. rex'' (or perhaps Franchise/{{Godzilla}}) made of cars, which when summoned rampages around wrecking everything it finds.
%%* ''VideoGame/SlyCooperThievesInTime'': The Moat Monster, one of the Black Knight's twisted inventions.
* ''Franchise/SuperMarioBros'':
** ''VideoGame/SuperMarioBros2'': Robirdo serves as the boss of World 3 in the UsefulNotes/GameBoyAdvance version (in the original version, the boss is Mouser, who also appeared at the end of World 1; the Mouser rematch is pushed to World 6 in ''Advance''). Robirdo is a large, robotic dinosaur who spits eggs like normal Birdos do, but these are much bigger. It is also capable of charging at the player's character as well as performing a GroundPound that shakes the floor.
** ''VideoGame/SuperMario64'': King Bob-Omb serves as the KingMook of Bob-Ombs (themselves being MechaMooks), and attacks Mario by grabbing him to throw him; that's the same thing Mario has to do to him (three times) to win. In the UsefulNotes/NintendoDS remake, if it's Yoshi who challenges him, then King Bob-Omb will attack by throwing smaller Bob-Ombs instead, since Yoshi cannot grab anything and instead has to throw the Bob-Ombs back at the boss by using his mouth. Bob-Omb went on to return in several ''Mario'' spin-offs since then.
** ''VideoGame/SuperMarioSunshine'': Mecha-Bowser is a large robot modeled after the Koopa King. It is piloted by Shadow Mario a.k.a. Bowser Jr., and serves as the boss of Pinna Park; it can breathe fire and shoot missiles, forcing Mario to dispel any incoming projectile with the help of FLUDD.
** ''VideoGame/SuperMarioGalaxy'': There's a different version of Mecha-Bowser located in Toy Time Galaxy, and in it some Gearmos are kept captive, forcing Mario to disassemble it to rescue them. There's also Megaleg, a gargantuan robot modeled after the Snifits (a subspecies of Shy Guys) which Mario has to destroy in order to claim the Grand Star it has in its top.
** ''VideoGame/SuperMarioGalaxy2'': The Megahammer is an enormous robot whose arms are shaped like hammers; Bowser Jr. challenges Mario with it in a battle for the Grand Star of World 3, and obviously loses. There's also Digga-Leg, a smaller version of Megaleg fought in Spin-Dig Galaxy which only guards a regular Power Star.
** ''VideoGame/SuperMarioOdyssey'': Mechawiggler is a large robotic specimen of Wiggler which is terrorizing New Donk City and its people, and is capable of attacking with energy spheres as well as warping from one spot to another with portals.
* The boss Fernus from ''VideoGame/{{Teslagrad}}'' is a mechanical dragon (it looks a lot like the Truckasaurus, actually) that lairs in the bottom of the Tower. It has the requisite fire breath, and has magnetic powers.
%%* ''VideoGame/WonderBoy'': The Meka Dragon.
* ''VideoGame/XenobladeChronicles'':
** ''VideoGame/XenobladeChronicles1'': The Mechon are all walking machines of death and mayhem, but they couldn't be called monsters, at least not individually. The faced Mechon, however, are the ones who could be called monsters, [[spoiler:[[ManInTheMachine but they aren't really machines]]]].
** ''VideoGame/XenobladeChroniclesX'' has various large, mechanoid Tyrants across the continent of Cauldros. Among them is Leva'el the Terminus, a {{Superboss}} that only appears in the PlayableEpilogue.
[[/folder]]

[[folder:Webcomics]]
* ''Webcomic/GirlGenius'' has a lot, including a great many built by the Heterodyne family. When the Mechanical Monsters are not available, the Heterodynes fall back on their good old-fashioned biological monsters.
* In ''Webcomic/TheInexplicableAdventuresOfBob'', [[GadgeteerGenius Molly]] [[https://bobadventures.thecomicseries.com/comics/377 builds one,]] seemingly just for fun.
[[/folder]]

[[folder:Web Original]]
* In ''Website/{{Mortasheen}}'', the genocidal villain civilization of Wreathe has nine of these called Celestial Engines, all of them named and themed after planets, as well as the model for all Wreathe's MechaMooks.
[[/folder]]

[[folder:Western Animation]]
* ''WesternAnimation/ChallengeOfTheGobots'': The Renegades use Mechanical Monsters called Zods. Cy-Kill's EvilPlan in the FiveEpisodePilot is to obtain the means to build an entire army of the suckers; he succeeds, but they all get blown up by a [[ChekhovsGun Chekhov's Bomb]] introduced earlier. The Renegades continue to use Zods after this, but more sparingly. They also have one called Scales, who can [[TransformingMecha transform]] into a racecar, but he only appears rarely.
* ''WesternAnimation/SamuraiJack'', due to the nature of the setting [[WhatMeasureIsANonHuman and the former rating]], has a lot of those. [[https://www.youtube.com/watch?v=32a7xRs47i0 The fused assassin droids]] in ''Samurai vs Samurai'' really stand out in that regard.
* ''WesternAnimation/StarWarsDroids'' features one of these in the form of the villainous Great Heep, which eats other droids to refuel and maintains a droid harem. [[Franchise/StarWarsLegends Later on, he is revealed]] as a member of the Abominor, an entire species of these creatures from outside the main galaxy. They were at war with the Silentium (who are made up of AlienGeometries), which is implied to be the reason for [[Literature/NewJediOrder the Yuzhaan Vong leaving that galaxy]].
* ''Franchise/{{Transformers}}'' has several, including the Terrorcon combiner team, the Monsterbots, the [[MixAndMatchCritters Fuzors]] and Trypticon.
** The [[OurDragonsAreDifferent draconic]] Predacons of ''WesternAnimation/TransformersPrime'' are particularly intimidating in appearance, and possess strength and durability that most normal Autobots and Decepticons couldn't dream of matching. Like Cy-Kill above, Megatron planned to mass-produce his beasts, but he scrapped this plan immediately upon finding out that [[ItCanThink the Predacons were not the simple creatures he had initially thought them to be.]]
** The 2015 ''[[WesternAnimation/TransformersRobotsInDisguise Robots in Disguise]]'' cartoon has nearly all its Decepticons sport beastly robot modes that evoke this. The main antagonist, Steeljaw, resembles a large robot werewolf.
[[/folder]]

[[folder:Real Life]]
* ''TRUCKASAURUS!'' [[https://web.archive.org/web/20190928225400/https://shellgames.files.wordpress.com/2009/04/truckasaurus2.jpg A pseud-dinosauroid monster made out of car parts.]]
[[/folder]]
----