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A staple in Super Sentai and Power Rangers is the episodic monster. They all vary in how they are recruited to the main villains. Most of these monsters are created by the main villain, but there are some monsters that are simply recruited to the group or are already lesser members, and in some cases it is never revealed how the main villains are supplied with many monsters.

List of Monster Creation Methods

Super Sentai

Shōwa era

  • Himitsu Sentai Gorenger - The Masked Monsters are created by the Black Cross and modified as needed, usually by Zolder scientists to adjust as required.
  • J.A.K.Q. Dengekitai - All of CRIME's main minions are machines with different sets and purposes.
    • The Crime Monsters are generally used alongside a human Crime Boss to assist in their main scheme; several later Crime Monsters start working independently without a Crime Boss
    • The Invader Robots work independently and are in control both of the scheme and in battling J.A.K.Q.
  • Battle Fever J - Satan Egos was able to create monsters through a Monster-Making Machine, where they implant the object of choice and fuse it with Satan Egos' own genetics.
  • Denshi Sentai Denziman - Vader Monsters are produced from eggs, typically stored within Vader Castle and chosen to be "awakened" generally by Queen Hedrian; they are placed in a machine at the base, bringing them to life.
  • Taiyou Sentai Sun Vulcan - The Machine Empire Black Magma create monsters, called Mongers, by gathering elements within the environment, and add it to a machine to form whatever Monger they need to suit their purpose. The Monger are special Bio-Machines forms from a special metal made out of lava with organic elements within it.Tvicon.png TV STORY-Ep. 13: The Living Black Ball
  • Dai Sentai Goggle V - Deathdark creates Synthetic beasts by choosing specific animal genes, which are combined with metal atoms and their machine produces the newly made creature.
  • Kagaku Sentai Dynaman - Evolution Beasts are created by General Kar, who uses a machine called the Progressor, which manipulates the "Life Soup" basis of life and processing through a machine, forcing evolution to a certain creature and then stimulating it through a process as if it had the ideal conditions to become the superior species of the planet, thus making it reach its full potential.
    • The Mechavolution Beasts use an upgraded version of Kar's monster maker, fusing together a specific animal (without need for Life Soup) and an object into a new creature.
  • Choudenshi Bioman - Doctor Man has constructed multiple means for combat, including five reoccurring Beastnoids for ground combat and his Mecha-Gigan system for giant fights.
    • He later upgrades to the more mecha-like Neo-Mecha Gigan later on to improve his forces.
  • Dengeki Sentai Changeman - The Space Beasts are aliens brought into the Gozma Empire; many of them are weaker beings from planets already conquered by the empire forced to work for them.
  • Choushinsei Flashman - Using an instrument called the Gene Synthesizer, Mess created Beast Warriors by splicing genetic material from animals or alien species with Bio Blend.
    • Some Beast Warriors are actually creatures hunted by Sir Kauler and used alongside him and his Alien Hunters. 
  • Hikari Sentai Maskman - The Dogglers exist in a crypt within Tube's main Underground Castle; the crypt is opened and two creatures are dethawed, both a main monster and a "Doggler", which combine into the creature used.
  • Choujuu Sentai Liveman - Brain Beasts are made through a mixture of 'Chaos', the fiery remanents of life in devastation, brain cores which bond to an object that Gash stirs to life.

Heisei era

  • Kousoku Sentai Turboranger - The Boma Beasts are beings who existed in the main tribes of the Boma in the past but were sealed away during their war with humans and fairies; the sealed Boma must be found and have their seal released in order to be used by Lagorn and his forces in the modern day.
  • Chikyuu Sentai Fiveman - The Silver Imperial Monsters have multiple sources by which Zone recruits them:
    • Some of the Galactic Warriors are actually aliens recruited or brought into Zone allied with them.
    • Other Galactic Warriors are creations of Galactic Scientist Doldora made to assist the empire accordingly.
    • The Combined Galactic Warriors fuse together two completely different Galactic Warriors in order to create one creature that can use both of its advantages to assist the creator.Tvicon.png TV STORY-Ep. 29: Fusion vs. Combination
  • Choujin Sentai Jetman - The Vyram uses Dimensional Bugs and place them on objects which turn into Dimensional Beasts. The Dimensional Bugs are all the "offspring" of the Dimensional Bug Mother brought with the Vyram during their initial invasion.
  • Kyoryu Sentai Zyuranger - Dora Monsters are crafted by Pleprechaun as small sculptures and processed in his oven where the monster comes out whole.
    • Later on, the Bandora Gang dug out a large supply of high quality Dokita clay in order to make more powerful Dokita-Dora Monsters.
  • Gosei Sentai Dairanger - The monsters are lesser members of the Gorma Tribe.
  • Ninja Sentai Kakuranger - After the seal is broken, the Yokai trapped in the Demon-Seal Gate escaped and the Yokai who were never sealed away regained their lost power; they all acted mostly independently until they were united by Gashadokuro, and later Daimaou.
  • Chouriki Sentai Ohranger - Machine Beasts were crafted by the Machine Empire Baranoia.
  • Gekisou Sentai Carranger - All monsters were gang members of Bowzock.
  • Denji Sentai Megaranger - Nezire Beasts are made when a Nezire Egg is placed in a Nezire Magic Circle and Shibolena chants a spell to give it form.
    • Psycho-Nezire were made from the pieces of the fallen Mad Guirail, which Dr. Hinelar adds to the monster making process with his "piano".
  • Seijuu Sentai Gingaman - All monsters are crew members of the Balban, though they are divided into four groups, each lead by a commander.
  • Kyukyu Sentai GoGoFive - The Psyma Beasts are formed by minus-energy and take the form of a card provided by one of the Psyma siblings and made through a spell by Pierre.
  • Mirai Sentai Timeranger - When the Londerz Family escaped into the past, they took the Londerz Prison with them along with frozen compressed prisoners. The prisoners are unfrozen and they enlarge into normal size.
  • Hyakujuu Sentai Gaoranger - The spirit of an Org will possess an object to take a monstrous form.
  • Ninpuu Sentai Hurricaneger - The Chuunin of the Jakanja all have loyalty to one of the Seven Spears they work under.
  • Bakuryuu Sentai Abaranger - Both monster makers this season, Creative Messenger Mikela and Visionary Messenger Voffa, make two different kinds of monsters; both of which use Life Berries (a special fruit that grows from the Tree of Life associated with Wicked Life God Dezumozorlya).
    • Mikela takes inspiration from pictures and uses a plant, an animal and an object to paint a picture and using a Life Berry, he creates a Trinoid, a monster made up of the three things he painted, with there names contributing to the Trinoids name.
    • Voffa creates Giganoids which are created giant size with a piece of music forming around a Life Berry. Once he gains inspiration he plays his piano and the Giganoid is created from its melody.
    • The KillerGhost is a special monster created by Mikoto Nakadai combining a Life Berry with a drawing created by his Wing Pentact; a second is copied and created by Lijewel.Tvicon.png TV STORY-Ep. 30: Ultimate Evil! Abarevolien FormationTvicon.png TV STORY-Ep. 40: Behead the Abare Armor!
    • If a Tree of Life empowered by Dezumozorlya becomes powerful enough, it can be used to instantly sprout past Trinoids and Giganoids from Life Berries; this method was to be used to conquer Another Earth alongside the Dezumozorlya segment within Mikoto Nakadai.Tvicon.png TV STORY-Ep. 43: AbareKiller is Inextinguishable!?
  • Tokusou Sentai Dekaranger - The Alienizers are criminals, who have no common goals and share no common factors other than purchasing weapons and equipment from Agent Abrella.
  • Mahou Sentai Magiranger -
    • Hades Beasts are recruited by Branken.
    • Hades Beastmen were sealed away but were set free by Meemy, who commanded them.
  • GoGo Sentai Boukenger - The Negative Syndicate are made up of four groups, two which follow the same pattern of monster creation through the season:
    • After a trial which many Jaryuu battle each other, the last one standing would be turned into a Wicked Dragon by King Ryuuwon.
    • Dark Shadows creates Tsukumogami from two (and one case, more) objects to suit their purpose.
  • Juken Sentai Gekiranger - After passing the Chamber of Trials, a Rinrinshi will be allowed to remove their mask, revealing their animal and will be able to take on a beast form.
    • The warriors of Genjuken are those already under Long and Sanyo who are evenly distributed between those two, Rio and Mele; one is chosen by one of the generals to attack when asked accordingly.
  • Engine Sentai Go-Onger - Barbaric Machine Beasts are manufactured by one of the three Pollution Ministers (and sometimes all three). The type of beast that is created is dependent on the Minister who creates it.
  • Samurai Sentai Shinkenger - Ayakashi dwell in the depths of the Sanzu River, and board the Rokumon Junk when either summoned or desire to assist in attacking the human world.
  • Tensou Sentai Goseiger - There are three primary monsters:
    • Universal Insect Monsters are aliens recruited from space by the Warstar.
    • Minor Yuumajuu are sealed beings returned to life by the superior Yuumajuu.
    • Matroids are manufactured by the Matrintis Empire
  • Kaizoku Sentai Gokaiger - Each Action Commander is put in charge of attacking Earth by superior members of Zangyack.
  • Tokumei Sentai Go-Busters - Both Enter and Escape use computers that they link up to an object. They then respectively choose a Metavirus (Enter uses cards, Escape uses programs pre-installed in her computer) that installs that attribute into the item, transforming it into a Metaroid. As a Metaroid is being created, information on it is transferred to the Creators in subspace to create a new Megazord based on the Metaroid.Tvicon.png TV STORY-Mission 1: Tokumei Sentai, Assemble!Tvicon.png TV STORY-Mission 22: The Beautiful Avatar: Escape
  • Zyuden Sentai Kyoryuger - Debo Monsters are created from one (or more) of three Idols, triggered by the corresponding commander(s).
  • Ressha Sentai ToQger - Shadow Monsters are recruited by different members of the Shadow Line for different purposes, depending on the recruiter.
  • Shuriken Sentai Ninninger - Yokai are formed from objects that are struck with corrupted Sealing Shuriken.
    • Advanced Yokai are formed when a single object is struck by two corrupted Sealing Shuriken.
    • The only Super Advanced Yokai is formed when a single object is struck by four corrupted Sealing Shuriken.
  • Doubutsu Sentai Zyuohger - The game Players are members of Deathgaliens and are chosen by one of the generals who chose the method of attack on Earth.
    • The hunter, Bangray, can recreate fallen Players by touching the head of one of someone who encountered the monster (Zyuohgers or Quval) and reading their memories, then using the memory of the Player to bring it back to life either at normal or giant size.
  • Uchu Sentai Kyuranger - The Daikaan are placed in command of planets invaded of the Jark Matter.
  • Kaitou Sentai Lupinranger VS Keisatsu Sentai Patranger - The monsters of Gangler are members who do whatever criminal activity they usually do.
  • Kishiryu Sentai Ryusoulger - Kureon will select human beings by infecting them with his slime to create the monsters, draining away their life energy in process.

Reiwa era

  • Mashin Sentai Kiramager - By giving a Bechat one of his Jamen masks, Carantula turns them into a Jamenshi. If a Jamenshi fails to gather enough energy, he uses dark energy insurance, energy from a Bechat mask. By giving a Dark Beast one of his Jamen masks, he turns them into a Jamen Beast.
  • Kikai Sentai Zenkaiger - By giving a Kudakk one of his Tojiru Gear, Ijirude turns them into a World.


Power Rangers

Zordon era

  • Mighty Morphin - See below.
    • Season 1 - Finster is the primary monster creator. He sculpts a miniature version of the desired monster, then puts the clay statue into the oven called the Monster-Matic and it produces a full-sized monster, ready to fight the Power Rangers. Finster and Rita Repulsa will occasionally mention that they have used a certain monster before, implying monsters are 'recyclable.'
      • To summon Knasty Knight, Finster and Baboo forge a sword and Rita chants "Moon of Ivory, stars of old, candlelight that's spun of gold, sky of fire, wind of night, bring to me a Knasty Knight."
      • Madame Woe is an independent villain who allies with Rita. She is not created in the Monster-Matic.
    • Season 2 - Zedd uses his staff to strike an object on the Earth, and the object turns into the monster, similar to the way Scrozzle (of Power Rangers Beast Morphers) creates Robotrons. After its defeat, the object reverts back to its original form and returns to its original location.
    • Season 3 - After Rita's return and marriage to Zedd, Finster returned to being the monster maker, although Zedd would occasionally create one.
  • Zeo - Machine monsters are made by the Machine Empire.
    • Autocthon is a spirit from prehistoric times that had no association with the Empire but ended up assisting them.
    • Borax is a member of the Varox and has no real association with the Machine Empire (although it is revealed in the next episode that the Empire and Varox had worked with each other before).
  • Turbo - Divatox calls on her crew members or fellow criminals for assistance.
    • Wolfgang Amadeus Griller is not associated with Divatox but joins her for no apparent reason.
    • Porto is capable of creating monsters as seen in Trouble by the Slice, where he crafts Mad Mike from a pizza box illlustration from the monster's epynonymously named restaurant.
    • The Maniac Mechanic is a self-emplioyed mechanic who boasts that he can "build or fix anything," He becomes associated with Divatox when he is summoned to repair her periscope and then recruited in a scheme to create a Battle Wagon for her.
    • Divatox wraps her tongue around a passing lunar bat which transforms into Count Nocturne.
  • In Space - Astronema deploys monsters under her command.
    • The Craterites have no association with Astronema and are foot soldiers from the Holo-Deck that escape when the Megaship was struck by lightning. The villains don't even appear in the episode.
      • The Craterite Conglomerate is created from Craterites.
    • Power DrillerFearog, a 2nd Sting King iteration and Behemoth were all false illusions created by Destructipede in order to draw out the Delta Megazord.
    • The Barillian Bugs are hatched from eggs belonging to Darkonda. The monster mutated from these bugs has nothing to do with Astronema.
    • Mutantrus is created from a part of Darkonda when the Astro Delta Megazord rips through him.
    • Lunatick is hatched from an egg with no association to the main antagonists who, once again, are absent from the episode.
    • Jakarak is a slave master who works with the villains just to get one of his escaped slaves (Seymour) back.

Post-Zordon Era

Disney era

New Saban era

  • Samurai and Super Samurai - Nighlok residents of the Sanzu River are called into service by Master Xandred, Octoroo, and Serrator.
    • Gred appears after the finale and it is unclear how this is possible since the Nighlock world has been sealed off.
  • Megaforce - Allied with Warstar.
    • A toxic chemical lea on Earth creates mutant monsters led by Bigs and Bluefur
    • Green slime appears and reveals Loogies. It is unknown if the slime creates them or teleports them in from elsewhere.
    • Virox can sneeze on people to transform them into Loogies
    • Distractor can create monster holograms, and after gaining the power of the Wild Sword he summons real ones, including Hisser, Psychotick, Mummy, Kesaran, Gremlin, and Skyfish. These are likely duplicates of other monsters, as Glytcher is later revealed to be Gremlin's cousin, and Hisser and Psychotick have been defeated in previous episodes.
    • Glytcher is not apparently associated with Warstar although Vrak does work with him.
    • After the end of Admiral Malkor and Warstar, Vrak creates the robot Metal Alice who in turn creates Rotox (DX) and Rico. These robots can regenerate at Vrak's underwater base if destroyed.
  • Super Megaforce - Members of the Armada.
    • Professor Cog is not a member of the Armada and even grows himself without the Maximizer. He fights Vekar and his entourage at one point.
  • Dino Charge and Dino Super Charge - Sledge, Heckyl/Snide, and/or Lord Arcanon would dispatch captured outlaws to Earth with the promise of releasing them should they succeed.
    • Wrench constructs a Reanimator that can resurrect destroyed monsters. He even uses it to create a hybrid between Gold Digger and Spellbinder called Spell Digger.
    • Conductro and Screech play hypnotic music that turns people into evil zombies.
    • Wrench reprograms Prince Phillip's robot G-BO to attack the Rangers
    • Wrench builds a robot called Fortress that's programmed to deflect the Rangers' megazord attacks
    • When someone is exposed to the Dark Energem, it creates an evil being that inhabits the same body as them. Snide and Doomwing are created this way.
    • Heximas escapes before the villains are launched into the sun and operates by himself with some Vivix. He mentions that he "grew" the Vivix, implying Vivix are an artificial life form.
    • Heximas can cast a spell on coal that causes anyone who touches it to become his evil elf minion. However, this spell can be broken if someone else reminds them who they are.
  • Ninja Steel and Super Ninja Steel - The monsters are actually contestants on the show Galaxy Warriors. Whoever can reclaim the Power Stars and defeat the Rangers earns the coveted title of Champion.

Hasbro era

  • Power Rangers Beast Morphers - Scrozzle or any of Evox's minions can create Robotrons by infecting everyday objects with the Evox Virus. He can also use the Robotron's data to transform a Gigadrone into a corresponding giant version of the Robotron.
    • Evox sabotages Neural Aligners to create evil avatars of Blaze and Roxy. In the process, the real Blaze and Roxy enter a strange sleep-like state, and it's said they'll stay like this until the avatars are destroyed.
      • Scrozzle later reincarnates the avatars as robots that regenerate in new bodies if destroyed, similar to Metal Alice and her robots.
    • Ryjack comes in from outside, seeking the Legendary weapons in Grid Battleforce's vault.
    • Ryjack's Reanimizer can be used to bring back deceased monsters similar to the Reanimator. This even works on Vargoyle
      • It is later revealed that the Reanimized monsters can return in more powerful forms if crystals are used in the process
    • Ryjack can also use control devices called compliance collars.
    • Using the same zord creation method as Zenowing, but using energems in the process, Evox creates the gargantuan Chimera Zord
    • After absorbing the remaining Venjix Virus and all the data in Grid Battleforce's computers, Evox summons Spiketron, Antennatron, Dumbbelltron, and Slicertron. It is unknown if these are reborn versions of the originals or simply duplicates.
  • Power Rangers Dino Fury - Sporix Beasts are an intergalactic army of monsters that can hatch from bulbous, vein-covered spores known as Sporix.
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