[[quoteright:335:[[VideoGame/ViewtifulJoe http://static.tvtropes.org/pmwiki/pub/images/Henshin_5237.jpg]]]]
[[caption-width-right:335:''"[[ByThePowerOfGrayskull Henshin A Go-Go]]"''-Hero, that is.]]

The Henshin Hero is a variation or subtrope of the SuperHero in which super-powered characters only have their special powers some of the time. A Henshin Hero has distinct normal and powered "forms," and needs to actively switch between the two. In essence, the character's powers are all turned off while he or she is in their SecretIdentity.

Henshin Heroes often have a [[TransformationTrinket special item]] which they use to change into their heroic form. These items are usually activated by a [[ByThePowerOfGreyskull command phrase]], triggering a TransformationSequence.

The transformation is frequently accompanied by a costume change. This gives the trope some overlap with ClothesMakeTheSuperman: many male Henshin Heroes wear power-armor of some kind, and their transformation allows them to [[InstantArmor don their armor almost instantly]]. Bonus points if the change of clothing is the only outward difference, but [[PaperThinDisguise nobody notices]].

The name comes from the Japanese term for the trope, ''henshin'' (literally meaning "change body" but more practically translated as "transformation" or "metamorphosis" ... and ''not'' to be confused with the {{Shapeshifting}} or {{Metamorphosis}} tropes).

SuperpoweredAlterEgo is when this trope [[JustForFun/XMeetsY meets]] SplitPersonality.


[[folder:Anime & Manga]]
* Many, many MagicalGirl series, including:
%%** ''Manga/AkazukinChacha''.
%%** ''Anime/DevilHunterYohko''.
** ''Franchise/SailorMoon''.
*** ''Series/PrettyGuardianSailorMoon''.
*** ''Manga/CodenameSailorV''.
** ''Anime/PrettySammy''. She uses a different henshin call in each program where she makes an appearance.
** ''Anime/MagicalGirlLyricalNanoha'' does something odd with this trope. Although Nanoha has a TransformationSequence, all it does is summon her Barrier Jacket (combat uniform). She can use her magical powers without transforming. However, we only see her do it on a few occasions, and with relatively minor magic.
%%** The ''Franchise/PrettyCure'' series.
%%** ''Manga/TokyoMewMew''.
%%** ''Tokyo Black Catgirl'', the short manga upon which ''Manga/TokyoMewMew'' was based.
%%** ''Anime/MermaidMelodyPichiPichiPitch''.
** ''ShugoChara!'', again twisting it with minor magics being available otherwise - with a second, minor transformation that changes only the character's personality and physical capabilities, but leaves her or him looking the same.
** ''Anime/CorrectorYui'', whose main character was an [[AscendedFanboy Ascended Fangirl]] of the MagicalGirl genre.
** ''Anime/MaiOtome'', in which the Otomes receive access to their Robes, which protect them and give them access to a powerful weapon, by receiving certification from their master (or in the Five Columns' case, from the Founder system(.
%%** ''Manga/WeddingPeach''
%%** ''Anime/DemashitaPowerpuffGirlsZ'' with Hyper Blossom, Rolling Bubbles, and Powered Buttercup
%%** ''Anime/PrincessTutu''
** ''Manga/KamichamaKarin'', though a couple characters are able to use some of their abilities without transforming.
** ''Anime/PuellaMagiMadokaMagica'': The Magical Girls use their Soul Gems to activate and fuel their powers, but it turns out that there's quite a bit more to the gems than they realize at first.
** ''Anime/CuteyHoney'', whose primary power is transforming into different persona, though she has one form for fighting seriously.
** ''Anime/KillLaKill'' technically IS a Magical Girl series, and every major character has a set of clothes that grant them powers through a TransformationSequence.
* Any superhero made by Creator/TatsunokoProduction.
** ''[[Anime/ScienceNinjaTeamGatchaman Gatchaman]]'' presaged and inspired the SuperSentai genre, using many elements that would become stock sentai material, not the least of which was an AnimalMotif.
** The modern reimagining, ''Anime/GatchamanCrowds'', also falls under this but employs a twist on the previous show's formula. The members of Gatchaman instead use journal-like devices that manifest their soul, called [=NOTEs=], to activate superpowered forms resembling PoweredArmor, complete with the prerequisite [[AnimalMotif bird motif]].
** ''Hurricane Polimar'' uses his helmet for transformation as opposed to wrist-worn gadgets or smaller devices. Said hero can also transform into a submarine, tank, etc. but he also runs around yelling and beating the crap out of people with his fighting style - [[PunnyName Hariken]], or Illusion Destruction Fist.
** ''Uchuu no Kishi Tekkaman'' and ''Uchuu no Kishi Anime/TekkamanBlade'' (the former needs his mobile transport robot named Pegas to transform).
** ''Anime/TekkamanBlade II'' features a twist: Since many people were captured and partially transformed by the Radam at the end of the first series, a large part of the world's population can transform into a "Primary Tekkaman", who are armored, but have few if any powers otherwise: effectively Henshin ''Civilians''.
** Their ''Time Bokan'' series feature this, with each hero using various transformation methods.
*** The ''Anime/{{Yatterman}}'' in particular have their costumes actually be their casual wear only flipped around!
%%** ''Anime/TheSoulTaker'', of course.
** The Karas of ''Anime/{{Karas}}'' require the "Will of the City" to unlock their powers.
* The "armored warriors" genre of anime. Similar in many respects to MagicalGirl programs, they feature male heroes and are targeted at a ''shonen'' demographic. Examples of such programs include:
%%** ''Manga/SaintSeiya''.
%%** ''Manga/LegendOfHeavenlySphereShurato''.
%%** ''Mystical Armor Legend: Samurai Troopers'' (aka ''Anime/RoninWarriors'').
** ''Manga/{{Guyver}}'' is an interesting example, bordering on {{Deconstruction}}: while Sho gets off fairly light, other characters have transformations that [[PainfulTransformation cross straight into]] BodyHorror; [[AntiHero Aptom]] and [[{{Mooks}} the Zoanoids]], for example.
* ''Anime/StarDriver'' plays this completely straight with Takuto/Galactic Pretty Boy Tauburn.
* ''Manga/{{Bleach}}'': While a capable fighter regardless, Ichigo can only draw on his powers by expelling his soul from his physical body using Rukia's glove, Urahara's cane, Kon's mod soul pill, or his Substitute Soul Reaper Badge. The latter becomes the conduit for his Fullbring, which once complete manifests as a short sword and white-and-black armor that gives him access to some of his Soul Reaper powers as well as some new ones.
* In ''Anime/TenchiMuyoRyoOhki'', Tenchi Maski got a costume change when he manifested his Light Hawk Wings.
** He actually gets two. He gets a Juraian Battle Uniform when Tsunami unlocks his Juraian powers, and then the Light Hawk Wings trigger a special uniform that looks like a cross between the Battle Uniform and Jurai's holy robes.
* Pretenders and Headmaster Juniors in ''Anime/TransformersSuperGodMasterforce'' are like this.
** The Pretenders are actually an inversion of the typical Henshin Hero, being robots that mass-shift and wear artificial Human skins to blend in to normal society.
* ''Anime/DigimonFrontier'' has the kids transform into Digimon, instead of having Digimon partners like the other series. Supposedly they're bonding with the spirits of legendary Digimon warriors, but until the last three or so episodes (in which the original warriors speak to the kids), "spirit" was just a fancier name for TransformationTrinket.
* The ''Anime/ViewtifulJoe'' anime expanded the henshin capabilities to include a sidekick, Captain Blue Jr. As his weapon was a Yo-yo, his phrase was "Henshin a-''[[JustForPun yo-yo!]]''"
* ''Anime/MegaManNTWarrior'', in which the operators can merge with their Navis in a process called Cross Fusion. Exclusive to the anime, this did not appear in ''VideoGame/MegaManBattleNetwork'', the video game it was based on, although Starforce does feature a similar form of henshin.
* In ''Manga/{{Ratman}}'', the titular hero is one of these, turning from a short middle-schooler to a tall, lean and deadly super. It's unclear if the other heroes fall into this; at least a few have what seems to be PoweredArmor instead.
* ''Anime/MagicalStageFancyLala'' isn't a hero per se, but is basically a henshin IdolSinger.
%%* Manga/{{Zetman}}
* ''LightNovel/HaiyoreNyarkoSan'''s title character does this voluntarily, possessing a Kamen Rider-esque combat form with a completely unnecessary TransformationSequence[[note]]she's a VoluntaryShapeshifter who can change forms instantly[[/note]] entirely because she's a {{Toku}} fangirl and thinks [[RuleOfCool it looks awesome]]. It does help that her "Full Force Form" is one of the few forms she has that doesn't run the risk of [[DrivenToMadness shattering her love interest's sanity]]. A short story (later adapted as an OVA) has her briefly becoming a MagicalGirl, with all the associated trappings.
* Great Saiyaman 1 (Gohan) and 2 (Videl) in ''Anime/DragonBallZ'', whose TransformationTrinket consists of a wristwatch.
** Although Gohan doesn't ''need'' to transform to use his powers. It's just to hide his identity.
* ''Manga/YuGiOh'': Yugi Muto, courtesy of his SuperPoweredAlterEgo. Without him, Yugi's basically helpless (at first).
* Maccha Green from ''Anime/RollingGirls'', who seems to be inspired by the ''SuperSentai'' franchise.
* ''Manga/WorldTrigger'' has entire armies of soldiers that can only fight by using items called "Triggers" to transform into "Trion Bodies" made of energy ("Trion" being the energy source that basically powers everything). Trion Bodies are superpowered and only vulnerable to attacks using Trion and also protect the real body from any damage as long as they are active. Though while the bodies look different (often featuring uniforms of their squad), they don't obscure the users identity, because the users mostly work for an official organization anyway (most prominently "Border", which defends Earth from invaders). The anime also features a fitting TransformationSequence.
%%* ''Anime/SonicSoldierBorgman'', nuff said
* ''WebAnimation/KaijuGirls'': The girls are only slightly stronger than ordinary humans and most of their powers (such as SuperStrength) are only active after transformation.

[[folder:Comic Books]]
* OlderThanTelevision: [[{{Shazam}} Captain Marvel]], who debuted *decades* before He-Man or the Japanese heroes.
* The other [[ComicBook/CaptainMarVell Captain Marvel]] was one for awhile when he was bonded to Rick Jones.
* ComicBook/BlueBeetle (The first and third.)
* ComicBook/IronMan, to an extent. Basically, it depends on the version of the suit. Sometimes it'll form itself around a bodysuit that goes beneath it. And sometimes it has a compact form like the suitcase suit, though he does have to step in or pull it around him while it's partially formed.
** Iron Man fully qualifies with his latest suit, the "Bleeding Edge" armor, which is stored within Tony Stark's body and called out mentally at need.
* For a brief period in TheNineties, Comicbook/{{Superman}} had both an Electric Superman and Clark Kent form.
** Prior to that, he went through a period in TheSeventies when he only had his powers while visualising a lynx. Otherwise they were in the possession of a young boy who was psychically connected to the lynx. No, really.
* At some point, ComicBook/WonderWoman no longer had her powers when not transformed.
* Comicbook/GhostRider counts as this given that Johnny Blaze (and other riders) had a normal human form and a Spirit of Vengeance form.
** Somewhat amusing if you compare the most likely unintentional similarities to the Franchise/KamenRider series. Both are {{badass biker}}s, both are usually lone heroes, both are henshin heroes, and both use the [[PhlebotinumRebel power of evil to fight for good]] (well, mostly the Showa Riders, in the latter case).
*** The motorcycle riding Ghost Rider even debuted around the same time as the Kamen Riders!
* [[ComicBook/XMen Colossus]].
* ComicBook/TheMightyThor and Dr. Donald Blake are a variation on this - the difference being that Thor is the original and Blake was a mortal form Odin forced upon his son as a test. Most other wielders of Mjölnir or passable replicas thereof also fit under this trope more-or-less. Including but not limited to Storm when she got repowered by Loki, Beta Ray Bill (albeit he is also a super soldier), Thunderstrike (both of them), and the new Comicbook/{{Thor|2014}} [[spoiler:(Jane Foster)]].
* [[Franchise/TheFlash Jay Garrick]] and [[ComicBook/GreenLantern Alan Scott]] of ComicBook/{{Earth 2}} gained their powers and costumes via mystical sources. As such, their costumes only appear when they use their powers.
* Depending on who's writing the DC character ComicBook/TheSpectre, he may or may not have some form of this. The older stories treated him as a guy who was returned from death and could, when he wanted, take on a ghostly form with mystical powers. Most later writers treat the Spectre and the human host it's associated with as separate characters, with how much control the host has when in Spectre form being highly variable.

[[folder:Films -- Live-Action]]
* In the ''Film/{{Moonwalker}}'' movie and [[VideoGame/MichaelJacksonsMoonwalker games]], Music/MichaelJackson can morph into a sportscar, a robot (aka the Jacksonator), or a space fighter plane, with the power of a Wishing Star.
* Tony Stark in ''Film/IronMan'', just like the comics. As he continues to advance the technology, donning it becomes easier every time, going from needing a lot of machinery to assemble and disassemble it around him in the first to having the suitcase suit in the second to each piece flying into place on its own with so long as he wears certain arm devices to summon it in ''The Avengers'' to basically ''doing a henshin pose'' that it responds to (not quite perfected) in the third. Particularly noticeable in the [[Film/IronMan3 third film]], where the climax involves him [[spoiler: alternating between suits in quick succession, each opening, letting him in, and resealing around him as needed even in midair]].

* The titular Behemoth of ''Literature/TheBehemoth'' is Roger's alternate form, a giant figure armored with coagulated blood and adorned with horns.
* This is the most common superpower (not [[MostCommonSuperpower that one]]) in ''Literature/SuperPowereds''. Most Supers are Shifters, requiring them to turn into their alt-form to activate their powers. In rare cases (such as with Hershel/Roy), this crosses with SuperpoweredAlterEgo. There are a number of Shifter-type Supers at Lander, including one of their gym teachers, who turns into a robot.

[[folder:Live-Action TV]]
* ''Franchise/KamenRider'' was the TropeNamer and the TropeCodifier. Most Kamen Riders have "Henshin!" as the [[ByThePowerOfGreyskull changing command]].
* This trope is also a staple of ''Franchise/SuperSentai'' series, as well as their American ''Franchise/PowerRangers'' adaptations. Many Sentai needed {{Transformation Trinket}}s to do their stuff (the Power Morphers from ''Power Rangers'' being the biggest example.
%% * ''Franchise/MetalHeroes''
* The ''Franchise/UltraSeries'' is the UrExample. It also combines this trope with TransformationTrinket.
%% * ''Series/ChouSeiShinSeries'' and several other {{toku}}satsu franchises.
* There was a Japanese ''[[Series/SpiderManJapan Spider-Man]]'' series that turned him into a Henshin Hero (complete with GiantRobot!).
%% * American ''tokusatsu'' adaptations:
%%** ''Franchise/PowerRangers''
%% ** ''Series/VRTroopers''
%% **''Series/MaskedRider''
%% **''Series/SuperhumanSamuraiSyberSquad''
%% ** ''[[Series/{{Beetleborgs}} Big Bad Beetleborgs]]''
%% **''Series/KamenRiderDragonKnight''.
* ''Series/TheMysticKnightsOfTirNaNog'' was a wholly American henshin hero program, which used no Japanse footage (albeit borrowing a few ''{{Beetleborgs}}'' costumes, which were, in turn, borrowed ''JuukouBFighter'' and ''BFighterKabuto'' costumes.)
* Ema in the Japanese drama ''{{Series/Sh15uya}}'' had a henshin ability, but it was never really explained.
* The Linda Carter ''WonderWoman'' series.
* Series/WarriorOfLoveRainbowman has no henshin device; instead he repeatedly chants "Anokutara Sanmyakusanbodai" (Supreme Correct Wisdom) to transform.
* National Kid, a series Toei made in 1960 that was fairly famous in Brazil.
* ''Series/BIMASatriaGaruda'' has Ray, who with the red Power Stone and the [[ByThePowerOfGreyskull changing command]] "Berubah!" (change) transforms into the eponymous hero.

[[folder:Tabletop Games]]
* Appropriately for something that grew out of Champions, the superheroic tabletop game, the HERO system has a Power Limitation called "Only In Heroic Identity." It's not worth many points, but it essentially means that the character has an alternate form and that the power in question only works in his superheroic form, thus opening the possibility that the character be trapped into his normal form and denied access to his superpowers.
** Similarly, the "normal identity" drawback in ''TabletopGame/MutantsAndMasterminds''.
** Likewise, ''TabletopGame/BigEyesSmallMouth'' has a specific version of Form Change that grants the user a super-powered form.
* ''TabletopGame/{{Legend}}'' includes a set of abilities called "Vigilante," which allows the user to summon armor and power buffs with a shouted command (TransformationIsAFreeAction for Vigilantes).
* Played with in the various [[TabletopGame.NewWorldOfDarkness World of Darkness]] games.
** Averted in most games. You're, for the most part, always a monster at all times, and can do a variable job hiding it.
** Downplayed in WerewolfTheForsaken, where human-form [[OurWerewolvesAreDifferent Uratha]] enjoy slightly increased physical durability and supernatural perception, but most of their power is in their Hybrid forms. Just take care with your [[UnstoppableRage rage]].
** Played Straight in the fan game, TabletopGame/PrincessTheHopeful, due to its MagicalGirl inspirations.
* Vigilantes in ''TabletopGame/{{Pathfinder}}'', even the BadassNormal builds, have distinct abilities in their social and vigilante identities. The [[MagicalGirl Magical Child]] even gets a TransformationSequence.
** The Aegis from Dreamscarred Press can be played this way.
* ''Anime/FutureCardBuddyfight'' has the Transform keyword. It's unique to the {{Toku}}-style Superheroes (or their counterparts the Dark Heroes), and is flavored this way. Monsters with this keyword may be equipped as though they were items, effectively turning you into a Henshin Hero.

[[folder:Video Games]]
* ''VideoGame/ViewtifulJoe'', with wonderful catchphrases to go with it: "''Henshin a Go-Go, Baby!''" and "''Henshin Around!''". It just so happens that he only actually needs to say "Henshin". The rest of the catchphrase is just for fun. His EvilCounterpart gets his own, which is the stinger to this page.
* In ''VideoGame/TheLegendOfZeldaMajorasMask'', four of the masks Link collects on his journey through Termina transform him into the being they depict: the pond-hopping, bubble-spitting Deku, the fast-rolling, fire-punching Goron, the fast-swimming, boomerang-launching Zora, and the mighty Fierce Deity.
** In ''VideoGame/TheLegendOfZeldaTwilightPrincess'', Link eventually gains the ability to change into his wolf form and back at will, which grants powers like increased senses.
* Red from ''VideoGame/SagaFrontier'' is given the power to transform into the superhero Alkaiser by another such hero, Alkarl, in order to [[EmergencyTransformation save his life]].
* In ''VideoGame/KingdomHeartsBirthBySleep'', Terra, Aqua, Ventus, Eraqus and Xehanort are all Keyblade weilders, and all have special Keyblade Armor that they can use whenever in combat or traveling through space. While it is unknown how Eraqus and Xehanort activate their armor, Terra, Aqua and Ventus transform by smacking the small amount of armor visible on their normal clothes (for Terra and Ventus in particular, it's their [[FashionableAsymmetry singular left shoulder-pads]]). The main trio can also toss their Keyblades up in the air to turn them into gliders to travel though space on.
** In what is perhaps the coolest part of the game, since Keyblade Armor protects its wearer from the darkness, Terra activates his in a last ditch attempt to avoid possession by Xehanort (who is essentially a Dark Lord), and while his body is still possessed, his heart trapped within, his mind manages to escape and inhabits the armor, creating the Lingering Will (which originally appeared a secret boss in ''VideoGame/KingdomHeartsII [[UpdatedRerelease Final Mix]]''), which you then play as against your possessed self, essentially making it Henshin vs. Henshin User.
* Kouta Asuma from ''VideoGame/SuperRobotWarsOriginalGeneration'' has ability to transform into Fighter Roar, he later join by his sister Shoko Azuma as Fighter Emmy.
* Appears several times in ''Franchise/MegaMan''.
** The most straightforward examples are Geo and Sonia from ''VideoGame/MegaManStarForce'', who become Mega Man and Harp Note by undergoing a FusionDance with EnergyBeings Omega-Xis and Lyra. In fact, most of the cast undergoes such ''Henshin'', but heroes are in the definite minority. The process actually bears a certain resemblance to ''Cross Fusion'' from ''Mega Man NT Warrior'', listed above.
** In the ''VideoGame/MegaManZX'' series, a Mega Man is a person able to use a Biometal to transform in a process called "megamerging". Like ''Star Force'', since some villains also have Biometals, the series also has "Henshin Villains".
** Even the original ''[[VideoGame/MegaManClassic Mega Man]]'' was prone to it, since he had a non-combat form he spent most of his time in; that said, the audience almost never gets to see Rock in his off-hours, so sightings of the change are few and far between. He does it in the [[VideoGame/MegaManV fifth]] UsefulNotes/GameBoy game, though. No invocation, he just jumps into the air and transforms from Rock to Mega Man. [[spoiler:It doesn't help.]] A short mini-comic also implies that his helmet can be used as his henshin device.
* ''VideoGame/PuyoPuyo 7'' has a henshin [[LimitBreak game mechanic]], where the characters turn into their older or younger selves.
* Sister Leica from ''VisualNovel/{{Demonbane}}'' can transform into white angel Metatron. Unfortunely, this never made into anime adaption.
* The main character in ''VideoGame/IllusionOfGaia'' has three forms (including his normal form), all of which have different powers.
* ''Videogame/TheWonderful101'' stars a team of 100 Henshin Heroes that can transform themselves into various weapons like a [[PowerFist giant fist]], a [[{{BFS}} giant sword]] or a [[{{BFG}} giant gun]] that shoots heroes.
* The [[MagicalGirl Princess Heart]] TransformationTrinket in ''VideoGame/SilentHill3'' turns Heather into a ''Franchise/SailorMoon'' expy; TransformationSequence, henshin call and [[AsskickingPose pose]] included.
* As of ''VideoGame/MetroidOtherM'', Samus appears to be this as her Power Suit is something that can only be sustained if her focus permits it. However this explanation has been regarded as FanDiscontinuity.
* The player character in ''Dragon Fighter'' for the NES is a gladiator who can turn into a fire-breathing flying dragon once a transformation meter fills up.
* Dragoons in ''VideoGame/TheLegendOfDragoon'' can transform between their civilian and powered-up, armored forms, getting access to magic spells, flight, and greater strength and endurance in the process.

[[folder:Web Comics]]
* Sheena, in ''Webcomic/KidRadd''. Complete with a parody of an anime TransformationSequence: "Magical Maid Robo Sheena!"
* In ''Webcomic/ElGoonishShive'', Elliot's magic lets him fly and gives him heightened durability and an accelerated healing factor, but only when using a particular spell that also requires him to [[SuperGenderBender turn into a woman]]. He has other superhuman abilities that can be used without transforming, though.
* ''Webcomic/KarinDou4koma'' features a Henshin Hero ''youkai''--not a youkai who is a Henshin Hero, mind you, but rather the concept of "Henshin Hero" ''personified''. He only makes two brief appearance with some friends, though, and doesn't appear as anything other than an ordinary schoolboy.
%%* In ''Webcomic/NemuNemu'', you have Henshin Rider.

[[folder:Web Original]]
* The Spirit Guard in ''Literature/MagicalGirlPolicy'' all fit this category.
%%* The Dimensional Guardians from the web fiction serial ''Literature/DimensionHeroes''.
* ''WebVideo/AtopTheFourthWall'':
** Linkara turns out to be one of these. He transforms with a classic ''Series/MightyMorphinPowerRangers'' morpher into his jacketed-hatted form, albeit usually just before the show begins.
** [[spoiler: And thanks to the ''Series/PowerRangersZeo'' Zeonizer he can transform into his upgraded White Zeo Ranger Form]]
** [[spoiler: Better still, he also has a gold Power Morpher with a Dragon coin in. Which lets him become the Green Ranger.]]
* The Creator/ApolloZHack Reviwarverse Saga features the eponymous hero and his nemesis possessing R-Units (which look surprisingly like Series/KamenRiderDragonKnight belts) which let them "Rev Up" to transform into Franchise/KamenRider like super powered forms called [[XtremeKoolLetterz Revuers]].
* LWAAS uses Jo's Manga: MechaGirl. The main character Yukasa,Takes off her clothes,just in her UnderwearofPower underwear pressing the button In the center of her bra TransformationTrinket and transforms into MechaGirl! PowerArmour.
* Eric Draven, from MallFight. He started off as a Green Ranger, moved onto becoming Kamen Rider Black, and now transforms (actually saying "HENSHIN!") into a fusion between Kamen Rider and Comicbook/GhostRider.
* Creator/JewWario used to transform into "The Warion" but has now been upgraded into the Fami-Kamen Rider, a Nintendo/Famicom-themed Kamen Rider with powers based on 8-bit video game sprites (and a Rider Belt that's a portable Famicom unit).
* Inverted with Oingo in ''WebVideo/VaguelyRecallingJoJo''. His Stand, Khnum, is based off the Rider belt and he uses it for assassinations.

[[folder:Western Animation]]
%%* ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983''.
%%* Its DistaffCounterpart, ''WesternAnimation/SheRaPrincessOfPower''.
* ''WesternAnimation/{{Ben 10}}'', and its sequels ''WesternAnimation/Ben10AlienForce'', ''WesternAnimation/Ben10UltimateAlien'', and ''WesternAnimation/Ben10Omniverse''.
** Oh so is the rest of the PowerTrio, the LoveInterest and plenty of bit characters as well. For example, [[EnergyBeing Gwen]], [[EnergyAbsorption Ke]][[ElementalShapeshifter vin]], [[PowerArmor Ju]][[EquippableAlly lie]].
* Bradley Biggle plays this trope straight to become ''Mint Berry Crunch'' in WesternAnimation/SouthPark episode Coon vs. Coon and friends. In fact, his transformation sequence gives nods to the ''Kamen Rider'' franchise and ''Anime/SailorMoon'', both of which are very prominent HenshinHero series.
* WesternAnimation/DannyPhantom qualifies as a Henshin Hero. Even though he has access to his powers while human, they aren't as potent until he transforms. He even has his own catchphrase.
%%* {{Freakazoid}}
* Wonder Woman pulls it off in an episode of ''WesternAnimation/JusticeLeagueUnlimited'' ("To Another Shore", specifically) as a homage to the aforementioned TV series starring Linda Carter.
* ''WesternAnimation/SuperDuperSumos'': The sumos go through a TransformationSequence to become "Sumo-Sized" and become even bigger and more powerful.
* In ''WesternAnimation/SymBionicTitan'', the two organic heroes summon their PoweredArmor with a wrist mounted transformation device.
* In ''WesternAnimation/IronManArmoredAdventures,'' instead of a suitcase-suit, [[HighSchoolAU teen Tony]] has it as a backpack. It only requires that the central button be pushed and it forms around him on its own without him having to do anything else, making for the most {{Toku}}-like version yet. Now all we need is [[ByThePowerOfGreyskull voice activation]].
* The eponymous ''WesternAnimation/AmericanDragonJakeLong''. Though some episodes shows that he ''can'' be a badass in human form.
* Gizmoduck of ''WesternAnimation/DuckTales'' and ''WesternAnimation/DarkwingDuck''. Blatherin' Blatherskite!
* WesternAnimation/SuperTed transforms into his super-powered state by speaking the phrase [[ByThePowerOfGreySkull "I'll just say my]] [[CatchPhrase secret magic word..."]] and then unzipping his fur to reveal a superhero costume underneath.
%%* ''The WesternAnimation/SkysurferStrikeForce''
* ''WesternAnimation/{{WITCH}}'', though the main heroines can only transform with their leader around, who has the TransformationTrinket.
* ''WesternAnimation/RandyCunninghamNinthGradeNinja'', Randy does this by putting on the Ninja mask (Even got its own transformation sequence.)
* ''WesternAnimation/KingArthurAndTheKnightsOfJustice'', which may have been inspired by the armored warriors anime genre.
* Near the end of ''WesternAnimation/MyLittlePonyEquestriaGirls'', the Humane Six gain pony-eared and pegasus-winged MagicalGirl forms via Twilight's Element of Magic. In the ''[[WesternAnimation/MyLittlePonyEquestriaGirlsRainbowRocks Rainbow Rocks]]'' animated shorts, the characters' [[ThePowerOfRock musical instruments]] act as {{Transformation Trinket}}s.
* ''WesternAnimation/FredAndBarneyMeetTheThing'' turned the ''Franchise/FantasticFour''[='s=] Ben Grimm into a weedy teenager who can change into the ever-lovin' blue-eyed Thing by joining two rings and shouting "Thing Ring, do your thing!"
* The fairies from ''WesternAnimation/WinxClub''. They have some magic when un-transformed, but behave and look mostly like humans. Then, when is time for ass-kicking, they transform into full fairy form, where having fully functional wings is the least of their abilities. The show is a MagicalGirlWarrior series [[{{Animesque}} heavily influenced by maho-shojo anime]], and the main girls have their own set of StockFootage Sailor Moon-esque transformation sequences.
* Ladybug and Cat Noir from ''WesternAnimation/MiraculousLadybug'', as well as (assumedly) Hawk Moth and any other Miraculous holders that appear, complete with {{Transformation Sequence}}s.
* The ''WesternAnimation/PJMasks'' are examples of this trope, transforming OnceAnEpisode from their civilian identities to the hero team they are in the night, and being unable to utilize their powers in the daytime.
* ''{{WesternAnimation/Trollhunters}}'' works this way with the magic amulet wielded by Jim, complete with TransformationSequence activated by reciting ''For the glory of Merlin, daylight is mine to command!''
''[[EvilCounterpart Henshin a-]]'''[[PreAssKickingOneLiner bye-bye!]]'''''