[[quoteright:350:[[Manga/SailorMoon http://static.tvtropes.org/pmwiki/pub/images/Sailor_transform.jpg]]]]
[[caption-width-right:350:Aaaany second now...]]

->''"If my enemy is a magical girl, I will not stand in awe as she goes airborne, drops all of her clothes, and starts spinning in preparation to transform."''
-->-- [[http://www.issendai.com/silliness/animevillain.htm "If Ever I Become An Anime Villain"]]

Why are you just standing there? She's totally going to kick your ass when she's done transforming. Oooooh! You're doing that thing where you're being uncharacteristically chivalrous even though you just murdered her entire defenseless family for some cheap laughs. Well, it's your funeral, buddy.

This is where a character will obligingly wait for another character to finish his transformation before proceeding to bloody murder. This is separate from a TransformationSequence in that while the sequence can be ignored, in this case it ''IS'' ignored.

Characters may have several reasons for doing this.
* They have thus far been able to [[CurbStompBattle curbstomp their opponent]] previously and are [[INeedYouStronger looking for a decent challenge]].
* They think [[UnderestimatingBadassery their opponent is hopelessly outmatched even transformed]].
* They may be wary of trying to attack someone surrounded by a glowing aura.
* They are trying to turn them with a NotSoDifferent speech.
* They are trying to expose their SuperpoweredEvilSide.
* The character in question has a HeroSecretService or SomeKindOfForceField for these situations.
* The character is a sadistic bastard and wants to drag the NoHoldsBarredBeatdown CurbStompBattle out as long as possible.
* There is a massive power spike. The character will meet his end if he uses a melee attack during the brief flash or watch as his attacks burn away harmlessly.
* '''''Most often though''''', the transformation '''really is''' [[TabletopGame/DungeonsAndDragons a Free Action]] in that it effectively takes ''near zero'' time in-universe. Some content even explaining it takes fractions of a second, and the extended transformation sequence showcased is simply an exaggeration giving viewers {{Fanservice}}.

Whatever the case may be, it ultimately comes down to the character being GenreBlind, and it rarely works out in their favor. Overall, whether you're okay with this trope or not reflects your stance on WillingSuspensionOfDisbelief.

Even if the villains attempt to attack the hero mid-transformation, usually a magical barrier of some sort knocks weapons, attacks, and even bodies away. This most commonly happens with HenshinHero, though there are a few other examples outside of this.

Works that don't normally feature a HenshinHero as a protagonist sometimes parody this by having a nameless extra being shot and killed in the middle of transforming. When a straight example of a HenshinHero subverts this trope however, it tends to take the form of making the initial triggering of the transformation the part that can be interrupted instead of the sequence proper, so whilst the transformation itself is a free action, pulling out the Transformation Trinket and activating it isn't.

Sub-trope of TransformationSequence. Compare DistractingDisambiguation, TalkingIsAFreeAction. Somewhat related to MookChivalry.



[[folder:Anime & Manga]]
* ''Anime/SailorMoon'':
** It's the classic example where their transformations seem to go on forever without any of their enemies attempting to interrupt them. However there is some circumstantial evidence and [[http://www.sailorenergy.net/SMMiniMangas/SMMangaInfoTransformationTime.jpg fan theory]] that this is because these sequences are viewer eye-candy only, in "real time" they take seconds. Also the fact that the enemy rarely actually sees the Senshi actually start the transformation. They'll often transform before they get there or duck around a corner and transform. One last season episode parodied the latter by Usagi searching for an empty room to transform.
** The fan theory is supported by the episode which explains Michiru and Haruka's backstory, as when Michiru reveals herself as a Sailor Senshi, we are spared the usual lengthy transformation and simply shown a burst of light, followed by her emerging in sailor form.
** In [[Manga/SailorMoon the manga]], transformations usually take up a single panel, implying instantaneous transformations.
** It was made clear in the Death Busters arc that the sailors avoid transforming in front of the enemy, not because they could be attacked during it, but because it's one of the few ways the evil ones could learn their secret identities. However, in TheNineties anime they do so recklessly a number of times (imagine the looks on the alien duo's faces when they saw their school friend Usagi transform into Sailor Moon right in front of them; also, early on Usagi, Ami, and Rei fell right into Jedite's BatmanGambit by transforming to destroy phony police officers).
** In the '90s anime Usagi transforms while a fire ball is heading towards an elevator she and Mamoru are trapped in. This happens in seconds in real time while the long transformation take place, showing that the actual transformation is fast.
* ''Anime/DragonBallZ'':
** Has quite a reputation for this. After two decades of parody, most viewers expect at least five minutes of some guy glowing, getting bulkier, and going [="AAAAARRGGGGHHHHH"=] with nobody doing anything about it besides commenting on how much stronger he's getting. In practice, powering up more "normal" attacks tended to go exactly like this (especially as the series wore on), but really dramatic ones (the Spirit Bomb, infamously, was interrupted the first three times Goku tried to use it) and major transformations almost always had the enemy at least trying to disrupt them. Sometimes it worked, usually not.
** In the original ''Manga/DragonBall'', Goku ran up and punched King Piccolo in the gut while he was powering up, and chided him for leaving himself open.
** A notable example of characters trying to subvert this and failing: in the Cell Saga, when Cell finally achieves his [[OneWingedAngel "Perfect" body]], the transformation takes quite some time. Future Trunks immediately tries to destroy Cell, but the mere ''BattleAura'' that the villain sheds during the metamorphosis is more than enough to protect him from any assaults.
** Broly got away with doing this because there was literally nothing anyone could do to stop him. None of their attacks were doing anything and after a while all they could do was just stare in disbelief as he grew even stronger.
** Another interesting case: in the Frieza saga, TheHero Goku ''lets'' BigBad Frieza power up to 100% so he can prove to the genocidal villain that he's no threat to a Super Saiyan. Goku later [[TheReasonYouSuckSpeech explains this to Frieza]] in what is likely the greatest blow he could make to Frieza, as it struck his ego.
*** Somewhat earlier, when Goku is going Super Saiyan, Frieza, confident that Goku was no threat to him, just stands there watching him, not sure of what Goku was doing until after the change. Could be possible that Goku felt like he was just returning the favor when he let Frieza power up. Although, most of that was because Frieza had no clue what was happening to Goku. He can't sense energy so he couldn't tell that Goku was getting stronger. Before then, the only known Saiyan transformation was their Great Ape forms.
*** The tendency of this occurring in the show was lampooned in ''WebVideo/DragonBallZAbridged'' by Frieza.
---->'''Frieza:''' I just love how easy it is to get away with this sh*t with you people! I want to transform, you just sit there and let me! I want to blow up the planet up, you just sit there and let me! I want to reach 100% power and you just sit right there and let me!
** Goku wonders why he lets villains do this in ''Revenge of Cooler Abridged''.
** Piccolo suggests that they should stop Android 13's transformation sequence in ''DragonBallZAbridged's'' ''Super Android 13'', but Goku goes against it, claiming that he wants a good fight.
** In the manga, Goku turns into a Super Saiyan on Namek in a single panel instead of a three-minute gruntfest.
** A notable parody is when Trunks and Goten try to do their FusionDance against Buu. Before they can manage, he quickly strikes and punches them. However, they manage to make him wait for the fusion by convincing him how cool the result will be.
** In ''[[Anime/DragonBallZBattleOfGods Battle of Gods]]'', the heroes figuring out how Goku can become a Super Saiyan God is inter-cut with Beerus relaxing with a soda. He's already proved that none of the heroes pose a threat, and is only in the area so he can find this mythical being and have a good fight.
** ''Anime/DragonBallSuper'':
*** While powering up to Super Saiyan Blue against Frieza, Goku closes his eyes. Frieza considers blasting him, but Goku - without looking - reminds Frieza that he can sense him and tells him to knock it off.
*** Champa orders Hit to attack Goku while he is powering up, but he refuses because he considers Goku a WorthyOpponent and wants to fight him at his best.
*** When the Kamikaze Fireballs begin lengthy {{Transformation Sequence}}s (being parodies of {{Magical Girl}}s), Android 17 just blasts them in the middle of it. Toppo gets angry at him, saying it's unjust to attack someone in the middle of a transformation (he's a {{Sentai}} parody, so it's understandable he'd think that way). Goku and Vegeta let it happen mostly because they enjoy fighting people at their strongest, and wanted to see what kind of power the trio had. 17 is ultimately convinced to stand down and let them finish. This one is odd, however, as in their initial appearance it was shown the Fireball's transformation was of the "instant Magical girl Transformation variety".
* ''Anime/{{Voltron}}'' subverts this. The very first time they try to combine into Voltron, the MonsterOfTheWeek attacks them during the transformation. By the next episode, they've figured out how to avoid the problem in the future: by combining behind the protection of the castle's force field.
** Also averted on at least one occasion in the vehicle version of ''Voltron'' (aka ''Anime/DaiRuggerXV''). The monster-of-the-week attacks one of the individual units that make up the left leg mid transformation, causing it to crash. This leaves the two other units that make up the leg flying solo while the main robot is very off balance. And while it ultimately fails, it does have the sense to try and neutralize the units that couldn't combine and prevent the combination sequence from completing.
** {{Discussed|Trope}} in [[https://www.penny-arcade.com/comic/2016/06/27/professional-courtesy this]] Webcomic/PennyArcade strip.
* ''Franchise/LyricalNanoha''
** A mage's combat transformation is pretty elaborate (especially for female mages), taking up almost a minute of screen time. However, as shown as early as the second episode, the in-universe transformation time is a couple of seconds and the transformation creates a barrier. The second MonsterOfTheWeek actually attacked Nanoha while she was transforming. He went 'tink!'
** It should be noted that in the second season, Vita attacked before Nanoha had transformed, and resumed immediately after Nanoha finished, before Nanoha even got her bearings back.
** In the first episode of [=StrikerS=], Hayate transforms on screen in mid-stride without missing a beat, with glowing particles breaking away from her barrier jacket as she runs towards the action.
* ''Manga/{{Bleach}}'' transformations are almost never interrupted and there's no real good explanation as to why.
** Except for Byakuya Kuchiki getting his Senbonzakura halted by Yoruichi in the middle of transformation, and being forced to block one of Renji's attacks before he could release his shikai.
** Grimmjow Jeagerjaques was also a very unlucky guy. He tried transforming twice before his final battle with [[spoiler:Ichigo]], but he is first interrupted by Tousen, and later by Ulquiorra.
*** In both cases, Grimmjow was stopped before he could finish his [[ByThePowerOfGreyskull activation phrase]], rather than having the transformation itself interrupted.
** While technically it wasn't stopping the transformation, Soifon managed to land two lethal strikes on [[spoiler: Ggio Vega]] while he was busy activating his final form.
** [[spoiler:Aizen]]'s "transformation" after [[spoiler:fusing with the Hogyoku]] averts this to the extreme, taking a ''very'' long time to completely during which everyone feels free to attack him (not that most of the attacks do anything).
** When Nelliel started transforming, Nnoitra went "OhCrap" and tried to attack her, but her BattleAura knocked him back.
* In ''Manga/JoJosBizarreAdventure'', In the Climax of Part 5 Giorno uses the Stand Arrow out of desperation to transform his own stand to defeat Diavolo. During this however it seems to leave his stand, Gold Experince, immobile during the process. Diavolo sees a chance to kill Giorno while this is happening. Thankfully the transformation finishes right before he strikes.
* ''Manga/MahouSenseiNegima'' averts this with Kotaro, who usually transforms into his demon form more or less instantaneously. Later played straight when Negi pulls out his BlackMagic tranformation against Jack Rakan, and Rakan doesn't do anything to stop him, allowing Negi to [[spoiler: turn into lightning, literally, and beat the crap out of him.]]
** And when he transforms ''again'' into [[spoiler:[[strike:Super Saiyan 3]] Raiten Taisou 2]], this time Kotaro has to cover him for 43 seconds.
** And then there was that time in the Mahora Festival TournamentArc where Kotaro decided to change into his demon form [[spoiler:only for [[strike:Colonel]] Ku:Nel Sanders to squash him repeatedly with gravity magic while he's in mid-transformation until he finally fell unconscious.]]
* Likewise averted in ''Manga/InuYasha'', whose transformations to and from his human mode were involuntary, and only took a heartbeat, although the dramatic representation in the anime usually took about three times as long as the transformation itself took. Notable is that [=InuYasha=] rarely cut himself any slack just because he was in human form, once he started accumulating TrueCompanions.
* A Zonder has tried to attack ''Anime/GaoGaiGar'' mid-Final Fusion at least twice. The first one couldn't even get past the swirling energy barrier, and the second got through, only to be knocked right back out by [=GaiGar=] himself, who interrupted the combination on his own to force him back out.
** EI-15 (GGG Spare Parts Robo) got through too, and at a time when the Final Fusion program was disabled, forcing GGG members to pilot the [=GaoMachines=]. Big Volfogg grappled the Zonder to get it off.
** During the ''[[Anime/GaoGaiGarFINAL Final]]'' OVA, Palpareppa allows Guy to perform Final Fusion into [=GaoFaiGar=] before him uninterrupted, as he wanted to allow Guy a chance to fight him on an even footing before crushing him. In a later episode, he appears to allow Guy in the restored [=GaiGar=] complete Final Fusion into Genesic [=GaoGaiGar=] even though he expresses shock at the Genesic Gao Machines revealing themselves.
** The earlier Brave show ''Anime/TheBraveExpressMightGaine'' actually did feature at least one incident involving a villain interrupting the gattai sequence. To explain: said villain managed to succeed in preventing the combination of the individual Braves using the robots Raijin and Jinrai, by firing an anti-combine magnet from the base and having Raijin and Jinrai surround it to disrupt the combination. Luckily, Might Gunner ended it by firing at the ship's antenna which provided the anti-combination mechanism, and the villain gets it. '''By having said villain's ship getting rammed with the good guys' combined ultimate FinishingMove: Joint Dragon Fire.'''
** ''Anime/BravePoliceJDecker'' also features a [[SugarWiki/FunnyMoments funny moment]] in which a giant panda grabs Deckerd mid-transformation & starts playing with him like [[MerchandiseDriven one of the action figures he exists to market]].
* ''Anime/SuperDimensionFortressMacross'' plays it pretty straight - of course, this is because [[TransformingMecha Variable Fighters]] transform lightning-fast, leaving very little if any opportunity to attack mid-transformation (and indeed, successful VF tactics involve transforming into whatever form is most suited to the present moment on the fly). The beauty-shot transformation sequences of [[TheAce Roy Focker's]] VF-0 in ''Anime/MacrossZero'' and others are explicitly done in BulletTime.
* ''Anime/TengenToppaGurrenLagann'' completely averts it with the last major transformation of the series, which takes about one episode while all hell is breaking loose around.
* Considering how much ''[[Anime/ShinkonGattaiGodannar Godannar]]'' enjoys [[PlayingWithATrope playing with]] anime-tropes, it comes as no great surprise that Dannar and Okusaer can perform their minute-long combination into Godannar, literally while the enemies are in mid-jump.
* ''{{Franchise/Transformers}}'', particularly [[Anime/TransformersArmada the]] [[Anime/TransformersEnergon Unicron]] [[Anime/TransformersCybertron Trilogy]]. [[TalkingIsAFreeAction Talking]] ''while'' transforming? ''Still'' a Free Action.
** Unless you're Unicron himself. His transformation in ''Armada'' took half an episode [[spoiler:and killed off a named character]]. Then again, there's [[GeniusLoci a lot of him]] to transform.
** The StockFootage sequences are intended to be subversions. When somebody transforms without stock footage it takes mere seconds. The "talking" often inserted into the sequences in the dubs can be dismissed in nearly all cases as hearing the character think. After all, thinking a sentence takes less time than actually saying it. If multiple characters communicate during a sequence, do note that in the case of ''Transformers'' they could be talking to each other the way computers talk over the internet. As a further note, the shows exist [[MerchandiseDriven to sell toys]], and the stock sequences can act as instructions for transforming the toys. In some cases, better than the print instructions they're packaged with. The American-original series typically do not have these sequences, though ''Animated'' uses them on occasion.
* Though usually played absolutely straight in ''Franchise/{{Digimon}}'', in the movie "Our War Game", Infermon is smart enough to attack Greymon and Kabuterimon before they can finish digivolving.
** [[LampshadeHanging Lampshaded]] in [[TheAbridgedSeries Abridgimon]]:
--->'''Tai:''' Well that only took, like, '''five hours'''. You '''do''' realize that we could all be dead right now.\\
'''Agumon:''' Tai, if you don't shut up, I'm gonna '''eat your parents.'''
** The aforementioned subversion took place in the internet, where Infermon was particularly adapted. Normally, the sequence is instant to outside observers.
* In the second season of ''Anime/DarkerThanBlack'', Suoh has a very traditional MagicalGirl transformation sequence which so far has been played straight, to the extent no one comments on her being defenseless during the transformation period (she hasn't been in combat yet though). On the other hand, there is something of an aversion of the trope in the times where Hei, the AntiHero has killed Contractors before they could complete their Remumeration and "recharge" their powers.
* ''Anime/PrettyCure'' has justified this in two different ways. The [[Anime/FutariWaPrettyCure original series]] had the transformation take place inside what seemed to be a barrier of light, [[Anime/YesPrecure5 while]] [[Anime/FreshPrettyCure later]] [[Anime/HeartcatchPrettyCure casts]] have had scenes where the transformation is seen as nothing but a brief flash of light, implying that (like in ''Anime/SailorMoon'') it isn't ''really'' as time-consuming as what we're shown.
** In one of the episodes in the second half of the first series, the Cures completed their demand for the creature of darkness to return from whence it came, only to discover that the creature of darkness ''had'' returned from whence it came (or at least run off to carry out her evil plan elsewhere) during the transformation.
** ''Anime/SuitePrettyCure'' has an opening before the credits where the badguys are just sitting around watching the Pretty Cures' TransformationSequence ''on TV in their lair'' for no reason but to lampshade this trope.
*** And in ''Anime/DokiDokiPrecure'', normal security cameras somehow managed to capture Mana's first transformation on video.
** Explained in [[http://brickme.tumblr.com/post/94237039468/why-magical-girls-are-never-attacked-during-a a live TV show in Japan.]] Apparently the light energy is so strong that it can power entire Japan 21 times over, so any bad guy who jumped into that will be vaporized immediately. Then a commentator thinks of a way to weaponize that...
** In one episode of ''Anime/KiraKiraPrecureALaMode'', Cure Whip instantly transforms without a sequence during a battle.
* Parodied in ''Anime/TheBigO''. Recurring HarmlessVillain Beck has executed yet another plan to defeat the protagonist, this time employing a CombiningMecha. The mecha executes a lengthy assembly complete with heroic cries, sparklies, and 70's music. During said transformation, the protagonist is unconcernedly fixing his tie and donning a new watch. The two mechas face off and Beck's begins the lengthy preparation for an attack. In the midst of the ensuing attack prep, Big O opens up a gatling gun and [[CurbStompBattle demolishes Beck in two seconds]]. ''[[SugarWiki/FunnyMoments And it was awesome]]''.
* ''Anime/{{Pokemon}}'':
** In the series, all outside actions stop when the battles start, even when someone is in the middle of executing an evil plot that the protagonists have just meddled in. In the TV special ''Anime/TheLegendOfThunder'', though, Marina (literally) tosses her Misdreavus into a two-on-one battle, and everyone stops what they're doing -- even the villains in the process of capturing the elusive and powerful Raikou -- to either watch or order Pokémon around... but then Attila gets an idea.
--->'''Attila:''' Just 'cause they're busy doesn't mean I can't round up Thunder-Wonder. (''reaches mechanical claws out to grab the nearly-fainted Raikou'')
** Also, whenever a Pokémon evolves, it's allowed to finish doing so, regardless of what was happening prior. In official battles, this is likely a polite thing to do, but even evil teams politely wait for them to finish. Considering they turn into energy during their transformation, it may simply be useless (or even dangerous) to attempt attacking them during evolution.
* Averted in ''Manga/{{Naruto}}'' where most transformations are almost instantaneous, and the few that aren't (Gaara's partial Shukaku transformation) happen gradually and clearly in real time.
** Also, even though Naruto using his SuperpoweredEvilSide is pretty quick, Sasuke was able to put him under a genjutsu that forced him out of it right as he was using it.
* Averted in the ''Manga/SoulEater'' anime. During the climactic fight with the BigBad, [[spoiler:Death the Kid]] is stabbed through the head by his opponent during his TransformationSequence and dies ([[spoiler:of course, being the son of the GrimReaper, killing him turns out to trigger an EleventhHourSuperpower, but the villain had no way to know that]]).
** Played straight elsewhere in the series, particularly with Kid activating his BFG.
* ''Manga/SaintSeiya'': Played straight. While they rarely ever have transformation sequences during battles, no one ever attacks them while they put on their Cloths.
* Averted in ''Anime/TokyoMewMew'', when Kisshu knocks Ichigo's pendant out of her hand before she can transform in Episode 45. However, once a transformation starts, so does this trope. Transformation scenes are never interrupted.
* Played straight in ''Manga/MermaidMelodyPichiPichiPitch''. Like many magical girl shows, this one has extremely long transformation scenes that never get interrupted.
* Generally played straight a few times in ''Manga/FairyTail'', mostly with Erza's transformations into her magical suits of armor. Episode 8 of the anime involves her transforming ''right in front of the face of the enemy'', and he doesn't do a thing.
** In fact it's stated outright that part of Erza's strength is the speed at which she can switch weapons and armor. She effectively has TransformationIsAFreeAction as an explicit ability.
* Parodied in ''Manhwa/DorothyOfOz'', as Mara's TransformationSequence involves her clothes tearing themselves apart and reforming in real time. The reason why nobody attacks her is so that they can enjoy the stripperific FanService.
* During their first encounter in the sewers, Bradley cut off Greed's arm and manage to capture him before Greed could attempt to transform his entire body into protective armor in ''Manga/FullmetalAlchemist''.
* The trope itself is [[ConversationalTroping mentioned]] by Megane in ''VideoGame/InazumaEleven'' after an {{Otaku}} opponent subverted TalkingIsAFreeAction and tried to steal the ball from him in mid-speech:
-->'''Megane:''' How dare you attack in the middle of a stirring lecture or a fusion! As a robot otaku, you fail!
* Averted in the original Japanese ''Anime/YuGiOh'': The first time Yami Yugi appears he has a long transformation sequence, but in subsequent transformations, the Millennium Puzzle simply flashes, and his alter egos trade places instantaneously; especially useful for battling the mind-reading Pegasus. However, the dub tends to recycle the first sequence over and over.
** Even with the drawn-out TransformationSequence, it's still {{Justified}} as Yugi typically does it before playing a card game and not in the middle of melee violence.
* ''Anime/VoltesV'' averts it at one time when the bad guy shoot at the team while doing a very long mecha combining sequence. Happens again when the MonsterOfTheWeek fire an anti-combining beam on the parts to prevent combination.
** The same thing happened in ''UFO Senshi Dai Apolon'' when the MonsterOfTheWeek brings miniature flying robotic bugs on the combine ports of the individual units and when it goes on contact with the combining parts when they try to combine, they explode, thus the combination gets interrupted.
** It also happens in ''Anime/VoltesV'''s predecessor ''Anime/CombattlerV'', where the BigBad fires an anti-super-electromagnetic beam to disrupt the team's [[CombiningMecha combining sequence]], and does so ''repeatedly'', foiling ''several'' attempts, all while [[EvilGloating gloating evilly]] about her new trump card.
* Also averted in ''VideoGame/BlueDragon'', a robot is going to transform into a big robot, much to Kluke's excitement, but Zora blows it up before it can finish.
* In ''Manga/GetterRobo Armageddon'', they actually subvert it when Shin Getter Robo catches Invader Dragon Machine before it can combine with Liger and Poseidon to become Invader Getter Dragon, due to the Original Getter Team being far more skilled with their craft and finishing their combination first. Ryouma even taunts the pilot, Professor Saotome, before destroying the plane. This was adapted from a similar scene in the ''Shin Getter Robo'' manga. An earlier scene has Ryoma and Musashi attempting to recombine their Getter Machines into Getter Robo One, with an autopilot-controlled Getter One ship unable to keep up and getting destroyed by the Invaders.
** In other Getter Robo media, some of their transformations are justifiably uninterrupted because they either make use of obstructions to combine outside of the enemies' field of vision, or because they have become skilled enough to combine their Getter Machines at extremely high speeds, faster than their foes can track accurately.
* Averted in ''Anime/MobileSuitVictoryGundam'', Usso's forced to run around without the Leg Flyer of the V Gundam after its shot down until they can get a new one set up for him. It's later recreated in the Game Boy game, ''Super Robot Wars 2 G''.
** The ''Franchise/{{Gundam}}'' franchise, being a set of RealRobot shows, is generally known to avert this trope, probably with the exception of ''[[Anime/MobileFighterGGundam G Gundam]]'', one example being that G-Armor has to hide behind a hill to separate into G-Fighter and Gundam.
** ''[[Anime/MobileSuitGundamUnicorn Gundam Unicorn]]'' [[JustifiedTrope justifies]] this whenever the RX-0 goes into [[SuperMode Destroy-mode]]: the Unicorn deploys an I-field around itself while it transforms, so firing on it while it does so would be a waste of time and energy.
** Played straight with Shinn's Impulse Gundam in ''[[Anime/MobileSuitGundamSEEDDestiny SEED Destiny]]'': no matter how opportune the moment is for a enemy to simply destroy the Core Splendor or the Flyers while they combine (especially considering the Core Splendor jettisons its missile packs, the only means by which the Impulse can defend its flyers pre-combination), they never do. Especially egregious when the Impulse's sudden appearance and subsequent transformation can stun an Alliance mobile armor and its three pilots into panicked staring for about forty seconds, and, later, Kira Yamato.
** Played with for all its worth in ''Anime/GundamBuildFightersTry''. The Winning/Star Winning Gundam is an SD with multiple forms and many opponents will try to take potshots at it. However, the Gundam Trion 3 does its amazing Super Robot transformation... and stuns ''everyone stupid'' because of it. In the latter case, it turns out the maker had a barrier set up to ensure no one can attack the Tryon 3 during the transformation sequence.
** Justified with the Asshimar in ZetaGundam which uses magnetic coating allowing it to transform in less than a second.
* In the ''Anime/DemashitaPowerpuffGirlsZ'' anime, the girls (separately or together), usually get shown in a fairly length transformation sequence, although it's often ambiguous as to just how much time this transformation takes from the perspective of other characters (it seems very little time probably actually passes). However in one particular example, the girls' transformations were prevented by the episodes villain (a demonically-charged kabuki-actor) magically causing them to begin crying non-stop. It then became a plot-point that they had to try to get Peach the digital dog to remotely auto-activate their transformation sequence for them (he was asleep back at the lab at the time).
* Justified in ''[[Anime/NurseWitchKomugi Nurse Witch Komugi-chan R]]'', which makes a point of establishing in the first episode that the "[[InsistentTerminology Chan-G]]" takes only ''0.02 seconds'' in real-time.
* The {{Manga/Guyver}}'s transformation pretty much ''can't'' be stopped because it creates a massive SphereOfDestruction. It also takes place rather quickly. Yoshiki Takaya is a major Franchise/KamenRider fan, so this may be an intentional LampshadeHanging.
* Lampshaded in ''Nowhere Boy'':
-->'''Fox Gahee:''' "What are you doing!? This isn't the time to be dawdling around! Our Hyun's in danger!
-->'''Oh Duk Hee:''' "No. During transformation, there is no danger. That is the law of the transforming genre."
* ''LightNovel/HighSchoolDXD'':
** Raynare impaled Issei while he was powering up. Issei's vulnerability as he warmed up is a glaring weakness early on and one of the first hurdles his TrainingFromHell has to tackle.
** Issei wonders why Maou Ranger Red [[spoiler: actually Sirzechs in disguise but [[PaperThinDisguise Issei knew right away]]]] didn't attack him while he was transforming into his [[PoweredArmor Balance Breaker]]. His response:
--> '''Maou Ranger Red''': "It's a rule that you can't attack while transforming."
** The anime adaption only shows Balance Breaker transformations once each. Issei's happens so out of left field that his opponent gawking for a moment is entirely reasonable, and Vali was plainly just showing off [[spoiler:and was under no threat from the "enemies" he was about to defect to anyway]]. Later transformations happen almost instantly, and usually before entering combat.
** Handwaved with [[spoiler:Juggernaut Drive. While there is a lengthy invocation, the user's power is skyrocketing during the process]]. If they're that far gone, you're dead already.
* ''Anime/{{Bakugan}}'' subverted this too, mostly in the second arc of Mechtanium Surge. At the very beginning, as Gunz was preparing to throw Reptak out, he was struck by Mechtavius Destroyer. In many of the battles, Wiseman would order an attack before the Bakugan got to combine. Most notably in the episode "Evil vs. Evil" when Mechtavius Destroyer won't let Betadron, Kodokor, and Mutabrid combine and actually kills Mutabrid in the process. Surprisingly, he didn't try this in his battle against the Brawlers three episodes from then.
** In the episode "Enemy Allies", he actually attacked ''Dan'' upon his attempt to call Dragonoid Destroyer. This was also played with in "Enemy Infiltration" when Mandibor tried to stop Radizen and Roxtor from combining; however, he missed due to the animation of their combination (they leap into the air and hold each other; Mandior aimed at the ground they were standing on).
* Parodied in ''LightNovel/ShakuganNoShana'', when Domino's transformation takes so long that by the time she is finished, Shana and Margery have escaped.
* ''Anime/KillLaKill'' succinctly demonstrates why nobody attacks Ryuko during the transformation sequence simply by showing [[http://static.tvtropes.org/pmwiki/pub/images/cthulhuprismpoweractivate_297.png what it looks like to the outside observer]]. Tsumugu is at least smart enough to attack her ''before'' she can initiate her transformation.
** It's also noteworthy that that picture is from an early point in the series when she's experiencing technical difficulties with her Kamui. Later on, her transformation is shown to be instantaneous and involve little more than some star-shaped sparkles and a flash of light.
* Played straight in ''Manga/{{Berserk}}'' for most of the time: When [[OurDemonsAreDifferent Apostles]] go OneWingedAngel, people tend to become so scared that they are unable to do anything else but [[DeerInTheHeadlights stare in horror]]. Averted later when Guts gets to wear the [[ArtifactOfDeath Berserker]] [[AdaptiveArmor Armor]] for the first time. [[CurbStompBattle Guts hacks the Apostles down]] so fast that one of them complains about it:
-->No... no fair! Attacking while we're transforming!
* Usually played straight in ''Anime/CuteyHoney'', but not always, as in the original manga and a few other versions Honey ''can'' and ''will'' attack the enemy during her own transformation sequence. {{Justified}} by Honey's nature: straddling the line between ArtificialHuman and android and having inside herself a [[AppliedPhlebotinum device that destroys and recreates things, including her clothes, literally from thin air]], Honey acquires the power to fight ''at the start'' of the sequence while she's getting stripped naked, the rest is the clothes and items of the form being created, [[CombatPragmatist and she's pragmatic enough to punch them in the split second they're distracted from her]] [[FullFrontalAssault suddenly getting naked]].
* ''Manga/SgtFrog'' invokes and parodies this during Kogoro's transformation sequence. Tamama argues that it's the perfect time to attack him, but Keroro convinces him to not do so, telling him that it would be rude.
* Transformations in ''Anime/PuellaMagiMadokaMagica'' are relatively short, and we can see on Episode 10 that they are instantaneous. Apparently, the eye candy scenes are for the viewer only.
* This is normally played straight in ''Anime/RoninWarriors'', except for episode 3, where Anubis repeatedly attacked Ryo while he was trying to transform.
* Zig-zagged in ''Manga/AttackOnTitan.'' [[spoiler: When Eren attempts to transform in the presence of enemies, they take immediate or preventative measures to prevent him from doing so, and usually are successful. When enemy shifters transform, all the protagonists attack with lethal force to stop them, and usually fail.]]
* Parodied in ''Anime/FateKaleidLinerPrismaIllya 2wei!'', where Rin and Luvia faceplant into a bog and Illya and Miu transform to fish them out. During the entire sequence you can hear Rin and Luvia struggling for their lives in the background while the girls undergo the lengthy transformation and when it's done Rin and Luvia appear to be lifeless and motionless in the muck. When pulled out Rin asks why they took so long to rescue them.
* Mostly played straight in ''LightNovel/CoffinPrincessChaika''. When Toru and Akari undergo their Iron Blood Form transformation, they have to chant an incantation that takes a few seconds to complete. A few times, the two took measures to distract enemies so they could finish it uninterrupted. However, no one has ever ''actually tried'' to stop them from doing it, even when standing right in front of them.
* ''Anime/SCryEd'' averts this, as Kazuma ends up getting attacked in the middle of forming his Alter a couple times over the course of the first half of the series, even when it skips the usual lengthy transformation sequence. By the second half this drops off, however, with Kazuma's second stage for his Alter seeming to be powerful enough that even anyone who would want to interrupt the transformation is simply unable to get close until it's been formed.

[[folder:Comic Books]]
* Averted, brutally, in ''Injustice: Year 3'' #3. [[spoiler:Jason Blood]] tries to turn into [[spoiler:Etrigan the Demon]] as a powerful spectre is breaking through the room's magical defenses. He makes it most of the way through his transforming chant when the doors are knocked open and his flesh is instantly ripped from his bones.
* Justified in most comic book versions of the ''Franchise/{{Transformers}}'' franchise, where it's typically depicted as being a near-instantaneous process unless it's a ''really'' big character like Metroplex or Trypticon, who are just too damned powerful to interrupt.

[[folder:Fan Works]]
* An aversion occurs in chapter 19 of ''FanFic/DigimonTrinity''; Mephistomon attacks Veemon while he's in the midst of digivolving to prevent him and Stingmon from [[FusionDance DNA digivolving]].
* ''FanFic/MegaManReawakened'' lampshades this when Robert wonders why Bass is watching Roll transform instead of doing something, though it's implied he did nothing because Roll looked good while transforming.
* ''FanFic/OjamajoDoremiRiseOfTheShadows'': This happens twice. First, the Ojamajos transform right in front of the [[QuirkyMinibossSquad ShadowOjamajos]] even though canon establishes that their transformations ''take a lot of time to complete''. [[spoiler:The second time was when the Queen assumed her [[SuperMode Super Witch Form]] for the first time; the narrative describes in detail the TransformationSequence.]] Both times, the villains [[VillainBall do absolutely nothing to stop them]].
* Played straight and averted in Claymade's ''[[Fanfic/TheDarkLordsOfNerima The Dark Lords Ascendant]]'', Sailor Uranus and Sailor Neptune transform right in front of Ryouga and Ukyou when it becomes clear they already know their identities. They don't attack partially because they intend to fight them as Senshi...and because [[PleasePutSomeClothesOn Ryouga turned his back when the sequence left them naked briefly]]. [[spoiler: Later when a group of mercenaries come for Hotaru, Haruka begins her activation phrase, but one of the mercs shoots her before she can finish it.]]
* ''Fanfic/FriendshipIsMagicalGirls'', being a homage to the MagicalGirl genre, naturally has this, though it's played with. Each girl's transformation sequence is only described the first time they use it, though it's implied to happen each time, and for the same amount of time. And even then, it's subverted a couple of times:
** In Magic 7, [[{{Ninja}} Trixie]] sweeps in and steals the girls' {{Transformation Trinket}}s when they're in the middle of using them, stopping the process.
** In Loyalty 6, at the start of Pinkie's fight with [[LightningBruiser Bellosto]], he charges her, and she shouts out her [[ByThePowerOfGreyskull transformation cry]] really fast, giving the implication that she's speeding through it to avoid getting hit.
* Averted and parodied on Ditto's entry in ''Fanfic/{{Pokedex}}''.
-->"These poorly-trained Ditto are as unable to beat a Magikarp as they are Arceus himself, for transformation takes time and opposing Pokémon (unlike most anime villains) do not respect the custom of not attacking during a transformation sequence".
* The diverging point in the ''Anime/DragonBallZ'' fanfic ''[[https://www.fanfiction.net/s/11886818/1/Inheritance Inheritance]]'' is Piccolo averting this and killing Freeza while he tries to go in his third form.
* Averted in ''[[https://www.fanfiction.net/s/11767392/1/Frigid-Future Frigid Future]]''. [[Anime/DragonBallZ Cooler's]] initial fight with Androids 17 and 18 goes poorly because while he could easily overpower them if he transformed, he also knows they'd rush him the moment he tried.
* In ''Fanfic/CommonSense'', both Team Rocket and their opponents will try to attack a Pokémon if they see it transforming mid-battle, not that it ever works.

[[folder:Films -- Animation]]
* Played straight in ''Anime/PrincessMononoke'', where onlookers gasp in awe during the Forest Spirit's transformations... except for [[spoiler:Lady Eboshi, who [[BoomHeadshot subverts this trope]] in the climactic scene.]]

[[folder:Films -- Live-Action]]
* The first ''Film/{{Underworld}}'' movie had a Death Dealer (vampire assassin) allow a [[OurWerewolvesAreDifferent Lycan]] to shapeshift completely before doing anything. Clearly someone has not attended the Franchise/IndianaJones [[JustShootHim School of Combat]].
* ''Film/MightyMorphinPowerRangersTheMovie'':
** Amusingly subverted in the first morph sequence, where the mooks the rangers were fighting used the length of the TransformationSequence to run away and set up an ambush. The best part of the scene is how, after the transformation sequence and pose-striking, the Rangers act ''completely mystified'' as to where the mooks went.
** Later in the movie, the Rangers suit up in their new "Ninjetti" outfits and announce their animal spirits. They ''just'' make it to the end of the role call before one of the mooks lobs a spear at Aisha's head. "The Bear - WHOA!"
* Justified in ''Film/IronMan2''. During the race track fight scene, Ivan Vanko waits for Tony Stark to get into his portable Iron Man costume. Justified because Vanko's aim is not to kill Stark but to discredit the Iron Man weapon and show off the power of his own suit.
* Gloriously averted in ''Film/DogSoldiers'' when [[spoiler:Megan]] starts transforming into a werewolf they just shoot them in the head. Played straight with [[spoiler:Ryan]] as they don't outright kill them while they're transforming but they do get their weapons ready. Understandable because they were under a table and nobody really wanted to get that close to a werewolf.
* Subverted in ''Film/{{Virtuosity}}'': while the {{Nanomachine}}-powered BigBad is attempting to go OneWingedAngel, the hero yanks out his CPU.
* Played both ways in the ''Film/TransformersFilmSeries''; sometimes the transformations would take a second or two, but sometimes they'd be upwards of 30 seconds, either because of particularly dramatic/unusual circumstances like transforming while rolling down a highway at full speed, or simply to [[RuleOfCool show off the quadrillion moving parts necessary]]. That said, no one is ever shown outright ''ignoring'' the bots while transforming, they either just have ineffective weaponry (mostly the humans), are distracted by their own transformation, or are still stunned by/locked up in combat.

* The villain of Creator/OrsonScottCard's ''Magic Box'' has as her goal [[spoiler:a [[OneWingedAngel transformation]] from her [[EnfanteTerrible frail young self]] into a [[ScaledUp gigantic]] [[OurDragonsAreDifferent dragon]]. She sets up the conditions to begin it, and the hero stands helplessly as it progresses . . . [[SubvertedTrope and then a minor character kills her with a gun before she can finish]]. A bit of a pity, since there's [[{{Anticlimax}} no proper final battle]].]]
* In ''Literature/{{Animorphs}}'', the characters usually transform ahead of time, but occasionally are forced to transform during battle, sometimes multiple times, and no one ever tries to attack them during this time. Justified in the later books because they get a lot faster at transforming with practice.
* ''Literature/TheSilverChair'' spends two paragraphs going into detail about the villain [[ScaledUp Scaling Up into a snake]], then spends a third paragraph pointing out how the transformation really only took less than a second.
* In ''Literature/TheRedAndTheRest'', Hammerstein gets [[CurbStompBattle taken out in seconds]] while bragging about how his transformation will make him invincible.

[[folder:Live-Action TV]]
* Subverted in the final episode of ''Series/{{Being Human|UK}}'', where [[spoiler:Herrick, a vampire bent on world conquest, would have happily snapped George's neck while the latter was oh-so-slowly and painfully transforming into a werewolf in order to kill him... if George hadn't had a [[HolyBurnsEvil Star of David]] to keep Herrick at bay, and locked them in a bunker under a hospital]].
* ''Franchise/PowerRangers'' does this when the [[HumongousMecha giant]] [[TransformingMecha transforming]] [[CombiningMecha combining]] robots are going from five individual things to one big robot. The giant monster just sits there for something like a minute every episode of every season, waiting for the incredibly complex docking maneuvers to be completed.
** Slightly averted in some Megazords that are in motion during their transformation and thus more difficult to hit.
** Similarly, the transformations of the Rangers themselves. Some seasons feature occasional "instant morphs" without the corresponding sequence, and this is taken by many to suggest that morphs are normally instantaneous and the StockFootage used in the TransformationSequence is just a sort of visual metaphor or slowed down just for the viewer so they can see it. The same can not be said for the Megazord docking sequence, as the Rangers will sometimes talk during it. In ''Series/PowerRangersTurbo'', Kat even comments on how much more complex and difficult the new Megazord's docking sequence is compared to their last one.
** However, the Transformation version was subverted at least once when [[Series/PowerRangersDinoThunder Conner]] was attacked during a morph and blasted out of it. Further, during ''Film/TurboAPowerRangersMovie', Kat's morph is shorted out when she falls into some water before it gets completed.
** Even if the morphs are instantaneous, they still go through a choreographed routine prior to activating their morphers, while yelling their morphing call.
** [[LampshadeHanging Lampshaded]] by Lothor in ''Series/PowerRangersNinjaStorm'', explaining a Ranger must only be destroyed in their true Ranger form.
** Double subverted in ''Series/PowerRangersSPD'': The A-Squad morph into SWAT mode and fire at the B-Squad rangers, who have yet to transform. They must have shot from the hip, though, because the B-Squad promptly morph anyway ''while explosions light up behind them''.
*** [[Disney/{{Mulan}} You missed! How could you miss! He was three feet in front of you!]]
** Subverted by the Rangers themselves in ''Series/MightyMorphinPowerRangers''. While the transformation itself couldn't be stopped, the monsters once managed to attack Tommy while he was reaching for his morpher, and he needed to be rescued by all the other to recover it.
*** Lampshaded in "Series/PowerRangersTurbo" episode Shadow Rangers, by Chromite. Chromite fired at them while they morphed, causing the powers to leave them and form the evil Shadow Rangers.
*** Played with in Series/PowerRangersMegaforce. On the occasion where the villains try to attack the Rangers while they're transforming or preparing the Super Mega Cannon, the Rangers will use their Ranger Power to endure the hit or the resulting explosion from the attack will just make their transformation more [[StuffBlowingUp dramatic]].
** As a general rule, in ''Power Rangers'', even if we admit the transformation itself is instantaneous, initiating it is sometimes easy interruptible. Think about ''Series/PowerRangersInSpace'', in which the Rangers had to press 3 or 4 keys on their morphers.
*** Additionally, Rangers often have post transformation callouts where they'll do some sort of move and call out their color and/or theme. ''Series/PowerRangersWildForce'' was big on this. While the post transformation sequence wasn't always used, it tended to get used for the most dangerous fights.
* Averted in ''Series/UltramanMebius'': while Mirai is transforming he is hit with a fireball and is thrown to the ground.
* ''Franchise/KamenRider'': The Showa-era shows play this one straight, while the Heisei-era shows tend to avert it by doing transformations with standard special effects rather than StockFootage. While most of the time it's played straight and the Rider transforms without interruption, many times they need to fend off and dodge the enemies until they can find a brief moment in a safe spot to start the transformation. The "holding off MonsterOfTheWeek with one hand while triggering a transformation with the other" is often used to herald the start of a [[CurbStompBattle curb stomp]].
** For the most part, when a Rider activates their transformation, the energy involved shields them from incoming attacks. On very rare occasions, a powerful enough attack can disrupt the transformation midway through. Likewise, some Riders have a transitory "base" form not intended for combat, which gains armor in the transformation process; sometimes the armor shields them, while others (most prominently ''Series/KamenRiderGaim'' episode 26) it doesn't.
** [[Series/KamenRiderDecade Kamen Rider Diend]] sometimes plays with this; because his TransformationTrinket is a gun, he occasionally fires the "transformation energy" at an enemy, staggering them before it comes back to him and completes the change.
** A few series (''[[Series/KamenRiderKabuto Kabuto]]'' , ''[[Series/KamenRiderDrive Drive]]'', and ''Series/KamenRiderGhost'') have intelligent, autonomous {{Transformation Trinket}}s that can fly out and smack away an incoming enemy or attack in order to protect the Rider before they start/complete the transformation.
*** ''Kabuto'' has another level to this, as the secondary [[ShedArmorGainSpeed Cast Off]] transformation causes their heavier armor to burst off in all directions, enough to knock back anyone foolish enough to attack.
** Played straight with ''Series/KamenRiderDouble'', ''especially'' with Accel. However, it gets brutally subverted in one episode where an enemy interrupts Double's transformation by shooting a "sticky bullet" at his belt, plugging up one of the ports needed to transform and preventing him from changing.
** ''Series/KamenRiderGaim'' puts a little spin on this; transformation is not a free action, but so far attacking the Riders during their transformation has done nothing. The Riders are also capable of moving around during their transformation.
* ''Series/KaizokuSentaiGokaiger'' has an interesting version of this. The Gokaiger's transformations do take time, but they know they're safe while transforming and use it to protect themselves from attacks. In fact, Gokai-Oh's first formation happens while inside a huge explosion and leads to a pretty badass moment.
** Subverted in ''Series/TokumeiSentaiGobusters'', transformations happen in real time and there have been cases where the Go-Busters have had to dodge while performing it while the mecha transformations happen very rapidly. Go-Buster-Oh's transformation takes longer, but the components of Blue and Yellow Busters' mecha circle Go-Buster Ace and form an energy field before it begins to protect it during the combination.
* ''Series/SpaceSheriffGavan'' plays around with this. Gavan's actual transformation [[InstantArmor only takes 0.05 seconds]], as we're told by the narrator [[OnceAnEpisode each time it happens]]. We see it in an instant flash of blue, but then they go back and show the whole sequence in slow-motion so we can see the details, like the Gavan suit being beamed down from its spaceship. However, we ''also'' see the full ''posing routine,'' which apparently also took place in the .05 seconds, because when the flash happens, Gavan is usually at a full run chasing an enemy, or else quickly saving himself from impending doom, and we clearly never see him do his rather elaborate pose.
** Amusingly, in ''Film/KaizokuSentaiGokaigerVsSpaceSheriffGavanTheMovie'', the big battle starts off with a recreation of this (with ''Gokaiger'' narrator Creator/TomokazuSeki in place of Issei Masamune), and then does the same with the Gokaiger, doing the fast version of their transformation and then going back and showing the full detailed version. (Turns out the Gokaigers' change is ''much'' faster than Gavan's .05 seconds.)
** So of course, when ''Series/TokumeiSentaiGobusters'' meets Geki Jumonji, a.k.a. Gavan Type-G, the rookie Space Sheriff from the new ''Gavan'' movie, we go through it again. Turns out the Go-Busters require a full half-second to change.
* The actual transformation in ''Series/ZyudenSentaiKyoryuger'' is actually pretty fast, but the dance required to activate it takes place in real time. A few episodes have had drawn out transformations where the Kyoryugers have had to fight and dance around their opponents to transform.
** And then they utterly skewer this trope in episode 25, where the team drinks some "Wake-Up Juice" in order to battle a nightmare monster; said drink peps them up enough that they perform the entire transformation sequence '''AND''' roll call in under 10 seconds (with the pre-transformation dance being run at double speed). Even funnier, when they start it up the enemy commander [[LampshadeHanging prepares to sit through the full roll call]], and is utterly floored when they finish that fast.
* ''Series/ResshaSentaiTokkyuger'' does it in the most hilarious way yet: when the [=ToQgers=] start their TransformationSequence, their [[TransformationTrinket ToQ Changers]] announce: "Commencing transformation! Please wait behind the white line!" ...[[LiteralMetaphor and they actually summon a white line.]] Which the monsters keep themselves from crossing.
** There have been a few cases where someone has not gotten behind the white line fast enough. Civilians are nudged gently across it, but monsters are violently flung across, so it's partially justified.
*** There is a reason for the white line: the flying trains that are part of the transformation for the helmet will smack anyone dumb enough to cross the white line HARD. As the Lion Inves from the crossover special found out the hard way. Since the series is aimed (more so than most) at small children, the {{Aesop}} being, even bad guys wait behind the white line when a train is coming.
* Keeping things fair for the bad guys, in ''Franchise/SuperSentai'' shows where the method to MakeMyMonsterGrow involves a separate villain showing up at ground level to grow the monster (such as Gash from ''Series/ChoujuuSentaiLiveman'' or Nalia from ''Series/DoubutsuSentaiZyuohger''), or when it's otherwise theoretically possible to stop the monster from growing, the heroes pretty much never try to do so, instead just waiting for the monster to grow so they can take to their HumongousMecha. There have been the occasional subversions of this (such as a time when the [[Series/GoseiSentaiDairanger Dairangers]] fenced in a monster with their staff weapons to prevent it from throwing the enlargement bomb) however.
* Played painfully straight in the original ''[[Series/GiantRobo Giant Robo/Johnny Sokko and His Flying Robot]]'' toku. Before he performs any attack, Giant Robo has to first go through a variety of stances, yet remains unmolested by the MonsterOfTheWeek. This is most evident during Robo's missile attack, which features StockFootage of him swinging his forearms side-to-side and up-and-down, then holding out his hands while missiles sprout from his fingertips -- all while the monster waits for the routine to finish.
* In ''Series/DoctorWho'', if a Time Lord is killed while trying to [[TheNthDoctor regenerate]], then he will truly die. Most regenerations happen after the episode's conflict is over, but this happened to an alternate Doctor in [[Recap/DoctorWhoS30E11TurnLeft "Turn Left"]] and [[spoiler:was part of the Eleventh Doctor's faked death]] at the beginning of [[Recap/DoctorWhoS32E1TheImpossibleAstronaut "The Impossible Astronaut"]].
* ''Series/PrettyGuardianSailorMoon'' brings the ''Anime/SailorMoon'' example above to its logical extreme: during her first ever transformation, Sailor Mercury manages to [[ByThePowerOfGreyskull chant the invocation phrase]] and go through the entire flashy sequence ''in midair'', while falling from roughly five stories high. Again, it's hinted that the transformation is actually instant and the flashy sequences are just a symbolic representation. This is shown to be the case several times during the series such as when Rei transforms while rushing into fight the yoma without the transformation sequence showing - flames cover her then disappear to show her in her Sailor Mars costume.

[[folder:Tabletop Games]]
* In ''TabletopGame/{{Champions}}'', this is called "Instant Change", and is a power you can purchase if the GM agrees.
* In ''TabletopGame/DungeonsAndDragons'':
** This is usually averted with transformative spells and special abilities, meaning that a Polymorphing wizard can easily be interrupted with a [[MundaneSolution solid whack on the head]]. Three exceptions are the Quickened Spell feat, which makes the change too fast for combatants to react to; the powerful Time Stop spell, which [[TimeStandsStill does exactly that]], and Shapechange, the pinnacle of transmutation magic, which lets the caster do this every turn.
** Grimalkin from the ''Monster Manual 2'' have the ability "Alter Self", which allows them to take on the form of most animals as big or smaller than them - as a free action.
** In 4e, transformation (using the Druid power Wild Shape) is a minor action. There are a number of utility powers and feats which can upgrade it to a free action or even immediate interrupt (meaning that you can be standing next to someone in human form, and bite their arm off in beast form as an Attack of Opportunity, before they even have the chance to shoot). There are a lot of other transformation powers too, but the Druid's is probably the quintessential one.
* ''TabletopGame/{{Exalted}}'': Transformation is initially ''not'' a free action for a Lunar Exalted --anyone can attack a Lunar when [[GenderBender s/he]] is shapeshifting-- but there is a set of Knacks to remedy that. The most powerful of those Knacks allow the Lunar to shapeshift once in every other character's turn. Which means that it's ''[[UpToEleven even faster]]'' than a Free Action, because after changing form a Lunar can still use any other Charms that can be used in other character's turn.
* In ''TabletopGame/MagicTheGathering'', the morph ability certainly qualifies. A creature with morph can come come into play as a face-down generic 2/2 creature, then its controller can pay the morph cost to turn it face-up, turning it into its "real body". Morphing is a completely free action to do in terms of timing, can't be responded to and is even one of the only moves one can do during a "split second stack" where players normally can't do any action. There are several reasons for this. For one thing, morphing is technically not itself an action, it is choosing to ''end'' an earlier effect. For another, the ability would be nearly useless if your opponent could freely cast removal spells on the feeble unmorphed creatures.
* ''TabletopGame/MutantsAndMasterminds'' literally has transforming as a Free action. This includes Alternate Forms and all the various shapeshifting powers.
* Normally averted in ''TabletopGame/VampireTheRequiem'', though a gifted vampire can train themselves to transform instantaneously. Dracula's first bride, the FullyEmbracedFiend Mara, was noted for using the trick extensively in combat.
* From ''TabletopGame/{{Warhammer}}'' and its [[TabletopGame/{{Warhammer 40000}} sci-fi sibling franchise]], mortal factions aligned with Chaos are capable of fielding [[BodyHorror Chaos Spawn]] and Greater Daemons. [[EvilSorceror Sorcerors]] are capable of [[BalefulPolymorph turning people into spawn]], and certain champions of Chaos are capable of turning allowing a Greater Daemon to possess their body. All of this is essentially instantaneous. This is justified by two factors: Chaos spawn mutations are generally very rapid and Greater Daemons are essentially immaterial and [[FridgeLogic probably]] don't count as an actual transformation since the body they use is essentially a summoning portal for an entity that doesn't need transformations. The second factor is that the game turns [[SlidingScaleOfTurnRealism aren't representative of actual time passage]].
* ''TabletopGame/WerewolfTheForsaken'' averts this, as it usually takes an instant action (about three seconds) for a werewolf to change forms, leaving them open to attack in combat. However, they can spend one [[{{Mana}} Essence]] to make the change instantaneous, and don't even have to spend the Essence if the moon's in the phase they first changed under.
* ''TabletopGame/{{Legend}}'' gives us this thanks to the Vigilante track. [[CaptainErsatz Given what that]] [[{{Expy}} particular track is]] [[Franchise/KamenRider based on]], this is only fitting.
* For ''TabletopGame/BattleTech'' [[TransformingMecha Land-Air-Mechs LAMS]] avert this by being most vulnerable when transforming and getting hit could jam the transformation or even cause it to crash if converting from fighter mode.
* Averted in ''TabletopGame/PrincessTheHopeful''; much like for Werewolves, a Princess' transformation takes three seconds during which it should technically be possible to attack them, but they can spend 1 Wisp to transform instantly, and don't even have to spend Wisp if they get 5 successes or more on their transformation roll. Most Princesses won't try transforming in front of their opponents if they can anyway, as this would cause them to lose the cover offered by their SecretIdentity.
* For most in ''TabletopGame/{{Pathfinder}}'', see the ''Dungeons & Dragons'' entry farther up, but the Vigilante has the potential for an unusually literal case... at high levels. The [[MagicGirl Magical Child]] archetype (class modification) and a social talent changes their technically-mundane disguise into their alternate self to a magical TransformationSequence (by that exact name) that takes five rounds (quite significant, but roughly half the time it takes a mundane vigilante[[labelnote:Cost]]The main ''disadvantage'' of transformation sequence is that while mundane identity switching is putting on a disguise and getting yourself into the right mental state, the transformation sequence is an attention-drawing spectacle of light and sound[[/labelnote]]). However, there are other social talents that speed up how long it takes to switch disguises, and the top tier of those makes the transformation sequence into a ''swift'' action (swift actions being actions that take up ''just'' enough of a fraction more of time than a free action that they can only be done once a round while still leaving all your other actions untouched and usable).

[[folder:Video Games]]
* Subverted in the original ''VideoGame/DragonBallZBudokai'' trilogy, where transforming is not only instantaneous but has a stun/guard break effect when used near an opponent.
** Played straight in the ''[[VideoGame/DragonBallZBudokaiTenkaichi Tenkaichi]]'' sequels.
** Averted in Legacy of Goku II, where Super Saiyan/Super Namek caused your character to do the transformation animation in real time and would be interrupted if you got hit, making them a pain in the ass to pull off during boss fights (luckily, most boss arenas had places you could hide behind to transform without getting punched).
* Subverted in ''VideoGame/KingdomHeartsII'', where transformations (or [[SuperForm Drive Forms]] as they're called in-game) on Sora's part are not only instantaneous, they hurl enemies back and deal damage.
** Also subverted in ''VideoGame/KingdomHeartsBirthBySleep''. Each playable character's command styles (equivalent to [=KH2=]'s forms) only takes about a second to activate, and during the switch, you're invincible. However, enemies ''can'' and ''will'' attack you ''just after'' the transformation (while you're still mostly helpless), which can really screw you up if you were damaged to begin with and just about to heal (unlike in [=KH2=], command styles don't heal you for free when they activate).
*** Played straight [[LoadsAndLoadsOfLoading if your load times are slowed down for whatever reason]] [[hottip:*:(such as playing ''Birth By Sleep'' without installing it on your PSP, or playing either game's HD remix on the [=PS3=])]]. After the transformation starts, enemies just kind of lounge around you for the 15 or so seconds it takes to finish.
* ''Franchise/FinalFantasy'' just loves these, take any OneWingedAngel and it's practically guaranteed to qualify.
** Not a transformation, per se, but summoning usually involves an elaborate sequence and is a free action.
** Transformations are also a free action in ''VideoGame/FinalFantasyX2'', where you'll be able to change costumes and still act on a single turn.
** Fans of ''VideoGame/FinalFantasyX2'' will be in for a rude awakening when they play ''VideoGame/FinalFantasyXIII''. Switching paradigms prompts a small transformation sequence but does ''not'' stop the battle. So while your characters flip their weapons and strike ''Franchise/SailorMoon'' poses, your enemies will not hesitate to shoot you in the face with a bazooka. This only happens the first time every battle, however. Every other time after, the Paradigm Shift is much quicker.
* Subverted by the player characters of the ''VideoGame/MegaManZX'' series; the first transformations into the Model X and Model A Mega Men don't take as long as they seem to, as the camera merely focuses on different parts of the body in separate shots - one could argue it's all happening at the same time. The first transformation into the Model ZX Mega Man does take a while, though presumably because of the bodily strain and the energy being released, which ''vapourises all of the enemies about to shoot Vent/Aile''. However, [[GameplayAndStorySegregation during gameplay]], Mega-merging still takes less than a second.
** Subverted also by Serpent, who transforms in identical fashion to the hero's in-game transformation, and also by the four enemy Mega Men of ''Advent'', who do take a ''few'' seconds, but release powerful phenomena when they do so, which protect and obscure them (respectively: surrounded by whirlwinds, engulfed in flames, encased in ice, wrapped in shadows) and are ready to go ''immediately'' afterwords.
** Played ''very'' straight, however, by Vent/Aile in ''Advent'' (when they're met as ''enemies'' initially), whose transformations are ludicrously over-the-top and expository, ''especially'' Aile's. Also done by [[spoiler: Albert]], who initially blows away the walls and ceiling, but otherwise floats in the air while his transformation completes itself. Both instances take a very long time to complete, and in both cases, Grey/Ashe just stand and watch.
** In some ''VideoGame/MegaManX'' games, X teleports in and then warps an armor onto himself instantly. Of course, he usually teleports in to an enemy-free area.
* Famously subverted in ''VideoGame/DisgaeaHourOfDarkness'', where Etna shoots two {{Sentai}} characters in the middle of a transformation sequence. Which [[ThatOneLevel turns out to be a terrible, terrible idea]].
** What you may wonder is ''where'' she got the gun, since [[GameplayAndStorySegregation you'd probably never put one in her hands in the first place]]. [[CutScenePowerToTheMax Or how she killed multiple powerful enemies with one attack from a weapon she doesn't even learn to use quickly]].
*** Obviously, she's still hanging on to the one she nearly killed you with at the start of the game. It's probably an heirloom, or something.
*** [[FridgeBrilliance She's practicing]]. In ''Disgaea 2'', she suddenly has an A rank in guns, the same rank she has in Spears and Axes
* Played straight in ''VideoGame/SeikenDensetsu3'', if you choose Kevin as one of your characters. "Hey monsters, just gonna go werewolf here, don't mind me."
* In ''VideoGame/{{Disgaea 3|AbsenceOfJustice}}'' there is the magichange ability. In a nutshell, an allied monster standing next to any ally can turn into a special weapon, complete with a spiffy transformation sequence. The enemies can do it too, of course, [[TheComputerIsACheatingBastard but they don't have the same limits the player has]].
** If you want to get technical, transformation could actually be a free half action, what with getting into a correct position and all.
*** And then you have the re-release of ''Disgaea 2'', where a modified monster can add itself into the already magichanged monster, resulting in two transformations, possibly one right after the other.
* Used without much in the way of explanation in the ''VideoGame/ShadowHearts'' series. Harmonixers, such as Yuri, can transform without using up their turn... you can even revert to human from a demonic form, transform into a DIFFERENT demon, peruse its attacks and decide that none of them are any good, revert again, pick a third demon-form, and THEN unleash one of its attacks - all while the monsters are patiently waiting for you to just get it over with already...
* Subverted in ''VideoGame/SuperRobotWarsOriginalGeneration'', when Kyosuke nails the R-Gun Rivale with his signature Revolver Stake attack, while it's in the middle of transforming... inflicting serious damage due to various parts being left exposed during the transformation, and effectively jamming the gears. [[spoiler: Ingram]] is not amused.
** And subverted as well when [[spoiler: Ingram]] shoots down the R-3 Powered in the middle of transforming into the [=SRX=]. Granted, he had the help of Aya suffering psychic backlash.
** Another subversion occurs in one mission of Alpha Gaiden, where the dinosaur empire has created a special squad of mechabeasts whose sole purpose is to stay between the getter machines and prevent them from combining. However, they were ultimately unable to stop a much higher speed, and therefore more dangerous, version of the combination mechanism.
*** Subverted in an early mission in Alpha 1 where the Getter Team was forced to defend their base from an attack too fast for them to combine. That part of the stage actually counted transforming as a Losing condition.
** ...it's kind of funny, though, considering that the rule is fully in effect in all the other ''VideoGame/SuperRobotWars'' games - anyone who can combine, divide, transform or whatever, can do so whenever they like, without wasting a turn. In fact, you can even combine with units that have already moved this turn as long as the one who's activating the combination hasn't, which you can take advantage of by separating a combined mecha, having all but the main pilot for the combined form attack, and then have the last one combine to launch a final attack that is much stronger than any attack the individual would make (and keep the individual units from being killed during the enemies turn).
* Transforming into dragon form and back is a free action in ''VideoGame/BreathOfFireDragonQuarter'', just watch that [[DeadlyUpgrade D-Counter.]]
* ''VideoGame/SuperSmashBros Brawl'' has loading issues due to the fact that it is on a double-layered DVD. As such, Princess Zelda's transformation into [[VideoGame/TheLegendOfZeldaOcarinaOfTime Sheik]] now encases her in a sphere of light for four seconds rather than being instantaneous like in the previous game, ''Melee''. You can't hurt her while she's in the sphere, though it's not uncommon for opponents to keep hitting it in hopes of hurting her the exact second she's done..
* Averted in ''VideoGame/MassEffect2'' - when fighting the Collectors, Big Bad Harbinger will sometimes assume direct control of one of the mooks, which gives it powerful armor, barriers, and attacks, as well as essentially setting it on fire from the inside out. However, doing so involves a several-second-long ingame sequence of the mook floating in the air and glowing orange, during which time you can take off a significant portion of its health bar without it fighting back. If you've got a powerful enough weapon, such as the [[SniperRifle Widow]], you might even be able to ''kill'' it.
* Transforming in ''VideoGame/TheLegendOfZeldaMajorasMask'' causes the rest of the game to come to a standstill (which is a good thing considering some of the transformations you need to do in the middle of boss fights). After the first transformation, you can skip the transformation sequence though (also good since [[NightmareFuel it looks]] painful).
* Defeating the Doppelganger boss in ''VideoGame/CastlevaniaIIIDraculasCurse'' relies on this trope. Changing your active character will cause the Doppelganger to transform into that character. For you, transforming (well, technically changing lead characters) is a free action. For the Doppelganger, [[WeaksauceWeakness it is not.]]
* The nature of ''VideoGame/WorldOfWarcraft'' transformation ranges all over, from the transformation happening instantly, everyone being unable to attack for no adequately explained reason, the boss making itself temporarily invulnerable, the boss incapacitating everyone before transforming, the transformation period being an excellent time to beat them up without resistance, to being able to stop them transforming at all by killing them or disrupting the spell.
** High Priest Thekal in Zul'Gurub, after being defeated in the first phase, yells "Shrivallah, fill me with your rage!" before transforming and replenishing his life bar, and the players cannot attack him while he transforms.
** The Reliquary of Souls (a large three-faced orb) in The Black Temple retreats inside a cage-like shell made out of bone for a few seconds while switching to its next face. The Devourer of Souls, a boss with the same model, shifts faces instantly and without warning, though.
** M'uru cannot be attacked during his transformation to Entropius, but this gives the raid valuable time to kill any remaining adds before the start of Phase 2.
** Averted with Moorabi in Gundrak; the transformation is a spell that can be interrupted, and the players get an achievement if they defeat him without him transforming.
** Justified with Professor Putricide in Icecrown Citadel, who uses Tear Gas to immobilize the raid while he runs over and drinks a potion.
* ''Franchise/{{Pokemon}}'':
** Subverted with [[DittoFighter Ditto]], whose only move is to transform into the opponent exactly except for HP. However, this takes a turn, and it normally gets knocked out or severely damaged before it can actually do anything due to its subpar stats. Although, in [[VideoGame/PokemonBlackAndWhite Generation V]], it got an ability which transforms it immediately upon entering the battle.
** Subverted again with evolution. Pokémon wait to transform until after the battle if they're ready to evolve mid-fight.
** Played straight with Mega Evolutions in [[VideoGame/PokemonXAndY Generation VI]], temporary form changes accessible to certain Pokémon in battle. You can transform into a Mega form and use a move in the same turn.
* Any purge transformation in ''[[ArTonelico3 Ar Tonelico Qoga]]''. Quite often justified as the enemies are busy attacking their bodyguards... or perhap both them and TheHero are just being DistractedByTheSexy?
* Played straight in ''VideoGame/{{Mabinogi}}'' in that any of the many character transformations give you invincibility during the transformation sequence.
* ''Franchise/TheElderScrolls''
** Averted in ''[[VideoGame/TheElderScrollsIIIMorrowind Morrowind]]'''s ''Bloodmoon'' expansion with the [[OurWerewolvesAreDifferent werewolf]] transformation. It takes several seconds for the change to take effect.
** ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'':
*** Once again averted by the werewolf transformation. It takes several seconds following activation to transform. Not helping matters is that the werewolf form itself is a GlassCannon, which can dish out significant damage (including some OneHitKO attacks) but is severely lacking in defenses. If you plan to use the werewolf form, it is highly advised that you activate it ''before'' initiating combat with your target.
*** Played With in the Companions questline, when Farkas first transforms. The [[CreatureHunterOrganization Silver Hand]] members standing around him easily could have cut him to pieces in the middle of his transformation, but they just sort of [[MookChivalry stand there]]...
*** The [[SuperMode Vampire Lord]] transformation added by the ''Dawnguard'' DLC likewise takes several seconds to complete, during which the transformee is vulnerable. In fact, the PlayerCharacter is vulnerable for even longer than it looks because, even once the physical form has changed, it can take some time for the magic spells to get ready for use.
* SonicTheHedgehog, when he transforms into [[SuperForm Super Sonic]] in the original games (VideoGame/SonicTheHedgehog2 and onwards), you are only suspended in the air for a second or two while you transform. In the 3-D games, anytime Sonic transforms into Super Sonic, it takes a good ten seconds to summon the Chaos Emeralds, close eyes, absorb the emeralds, then "explode" into Super Sonic in a cutscene, and only once, in ''VideoGame/SonicUnleashed'', does someone attempt to stop it. It doesn't work. This transformation goes quicker when transforming during normal gameplay in VideoGame/SonicColors and VideoGame/SonicGenerations.
** In ''VideoGame/SuperSmashBros Brawl'', Sonic's Final Smash is similar to the cutscenes, only, you get a quick 3-second transformation at the beginning and end of the attack.
* ''VideoGame/TransformersFallOfCybertron'' justifies it with [[HumongousMecha Metroplex]]. He's so big that Decepticon mooks fall right off while he's transforming for at least 30 seconds. A [[spoiler:Warp Cannon]] might have stopped it though.
* ResidentEvil is very, very guilty. Countless are the times when the hero will just stand there, gun trained at the villain, who's laughing maniacally and strinking dramatic poses while they are slowly mutating or being absorbed into their OneWingedAngel form.
* The first ''VideoGame/{{Shantae}}'' game averts this. If the player gets attacked while attempting a transformation dance, she needs to start over. However, the sequel, ''Risky's Revenge'' plays this straight. While performing a dance, everything in the background (including the enemies) will pause.
* Averted in ''VideoGame/DragonAgeOrigins''. Shapeshifting is a chanelling spell, and as such can be interrupted by an attack.
* All of [[SuperMarioBros Mario's]] transformations are instant. However, there's no MercyInvincibility, so it's possible to pick up an item and immediately lose it due to hitting an enemy.
* Averted in ''VideoGame/PlantsVsZombies'', in which the Imitater can be eaten by a zombie during its transformation sequence. Played straight in the second game, in which it transforms faster.
* [[EnforcedTrope Enforced]] in ''VideoGame/ZeroAD'' When a soldier gathers enough experience, he is upgraded to the next level and this is indicated by the soldier waving his weapon in the air happily, while wearing his new uniform. Since this usually happens in the middle of a battle, any damage to this unit is disabled until the transformation is complete.
* ''VideoGame/TheWonderful101'' justifies this, in a sequence parodying ''Series/SpaceSheriffGavan'' (see Live-Action TV): transformation is not a free action - it takes three billionths of a second. Yes, really.
* In the ''Franchise/ShinMegamiTenseiPersona'' games, the protagonist can switch Personae without using up his turn and without being interrupted. However, he can only switch once per turn. Justified since he doesn't physically transform, but just lets another aspect of his mind become more prominent.
** The Anime Adaptation of the ''VideoGame/{{Persona 4}}'' often outright averts the trope by showing that the characters can quite easily be interrupted in summoning their Personas if something gets in their way or they [[EpicFail hilarious slip on a slimy surface while leaping to do their trademark summoning poses.]]
* Happens in ''Warhammer 40,000 Space Marine''. While Nemeroth is undergoing his transformation into a Daemon Prince, you're distracted by fighting a horde of Bloodletters. You can't attack Nemeroth anyway, as a barrier protects him. Sadly, this leads to one of the lamest final boss "fights" in recent history - a QTE button mashing affair that a chimpanzee could get right on the first try.
* Played straight in the ''Franchise/{{Neptunia}}'' series. In fact, one of Neptune's quotes for the action is [[LampshadeHanging "No attacking while I'm transforming!"]] and a CPU can act again immediately after. ''VideoGame/HyperdimensionNeptuniaReBirth1'' explains the issue by canonizing the common HandWave - the flashy sequence is for the player's benefit (and they're all [[MediumAwareness conscious of this]]), the InUniverse transformation is the one seen in dialog sequences - a simple pillar of light that takes about two seconds. Ironically, this part is ''not'' a free action - that pillar can be seen for miles (as a tranform-happy Neptune discovers when she blows the party's cover at one point) and enemies can interrupt the process. The latter case only happens once, usually the [=CPUs=] transform one by one to protect each other. Or so they can deliver their lines with appropriate drama, given the MediumAwareness going around, both are equally valid.
* Dragoon transformations in ''Videogame/TheLegendOfDragoon'' appear to take several seconds but no one ever attacks someone mid-transformation. However, given that the transformations can be done in a flash of light in combat, and Dart managing to transform ''after'' a wingly had already fired a spell at him, it's likely that the TransformationSequence is only for the audience. The transformations that do take longer, such as Dart's first transformation don't provoke any attacks, likely because Dragoons are at best a barely remembered legend so most enemies have no idea what's happening.

[[folder:Web Comics]]
* ''Webcomic/HeadTrip'' parodied this trope in [[http://headtripcomics.comicgenesis.com/d/20060514.html the strip]] that provided a former page quote. "Seriously, she's been doing that for like ''five minutes'', and you didn't think to get up and ''do'' anything?" "Look, lady, [[ExactWords our contract says]] to attack girls in [[MiniDressOfPower mini]]-[[ShowSomeLeg skirts]]... She's ''naked''. Don't look at ''me''."
* Done in [[http://www.sluggy.com/daily.php?date=010723 this]] ''Webcomic/SluggyFreelance'' strip. Part of the whole anime theme the Punyverse has going on.
* ''Webcomic/AngelMoxie'' lampshades this.
--> '''Riley:''' You know, by the time you transform, the world could already have been destroyed.
--> '''Alex:''' It's my moment. Let me have it.
* The D&D example above is played out in ''Webcomic/TheOrderOfTheStick''.
--> [[http://www.giantitp.com/comics/oots0638.html Time Stop.]] [[NoKillLikeOverkill Acid Immunity. Quickened Stoneskin. Mind Blank. Quickened Bear's Endurance. Protection from spells. Quickened Shield. Delayed Blast Fireball. Quickened Fire Shield.]]
* Inverted and subverted in ''Webcomic/ManlyGuysDoingManlyThings'' by Gackt, telling Commander where an eye wash station was, only to transform into his ultimate form while Commander was occupied.
* ''WebComic/DragonBallMultiverse'': Subverted with Frieza in U3, where Saiyans manage to kill him because he was midtransformation at the time. Also, [[spoiler:U18 King Cold would've won if Trunks hadn't killed him before he could even transform into his third form.]]
* Averted in ''Webcomic/ButImACatPerson''. They're frequently drawn out during quiet moments, but will happen fast when they need to.
* In ''Webcomic/WildeLife'' werewolf transformation happens almost instantly, leaving no time to interfere and in fact being very surprising to the person who suddenly has a wolf in front of them. It's described by the author as being able to turn another "direction"; northward, southward, wolfward.

[[folder:Web Original]]
* ''Literature/MagicalGirlHunters'' occasionally averts it. Yoi and Itami don't shoot the girls prior to transformation and are loath to do so during because it's bad business, making them look like they're gunning down innocent (and briefly nude) young girls. However, this has been how they've gotten the drop on a number of their targets and many of the rest they plug in the moment right after transformation when they're still catching their balance.

[[folder:Western Animation]]
* One thing [[HeroKiller Azula]] is famous for in ''WesternAnimation/AvatarTheLastAirbender'' is averting this in the final episode of the second season. When Aang starts to go into the Avatar State, and begins to glow and levitate, she doesn't wait for him to finish, but just shoots him in the back with a bolt of lightning, leaving him seriously injured and for a brief time clinically dead. It may be that for most people, the sight of the Avatar State being unleashed is just too awesome (in the old-fashioned, wrath-of-God sense) to not be frozen by it, unless you're the [[MagnificentBitch Azula.]] It usually ''is'' a free action, only taking a fraction of a second. This one was special because it was his first full-powered one done on purpose instead of reflexively, and he wasn't all the way out of the meditative trance needed to unlock it yet.
* This is the main difference between American-produced ''Franchise/{{Transformers}}'' shows and the Japanese ones. Transformers in Generation 1, ''WesternAnimation/BeastWars'' and ''WesternAnimation/TransformersAnimated'' tend to take only a few seconds (if even that) to transform, not leaving themselves open to attack, whereas the Japanese shows follow this trope to a T.
** It actually varies in the Japanese series. Sometimes there are long dramatic transformation sequences, and others the transforming happens instantly. As with ''Franchise/PowerRangers'', it apparently actually looks like the in-scene morphs to the other characters. It comes into play more, though, during ''Anime/TransformersCybertron,'' as actual dialogue is inserted into StockFootage sequences to make it more interesting (as ''Cybertron'' went ''way'' overboard with them.) It largely works, but... in the time it takes Optimus to go to Super Mode and then combine with Leobreaker, while explaining Vector Prime's whole plan and their part in it... Sideways, who was in the middle of his usual TeleportSpam attack, hasn't reappeared? Really, the Decepticons could have gone home, taken a nap, come back, and ''then'' blown Optimus and Leobreaker to scrap before that ended.
** Note that in the American series nobody every tries to interrupt characters combining into a bigger robot, which clearly ''does'' take time.
*** It was done at least once. Slag knocked over a not-yet-complete Devastator.
** ''[=Animated=]'', however does both. Most of the time, transformation is instantaneous, however characters occasionally do get a transformation sequence where this trope is in effect.
** One of the Japanese-only ''[=Transformer=]''-style series has the baddies develop a special gun that was triggered to fire exactly in the seconds of transformation, when the robots are most vulnerable. The heroes eventually get around this by having their back-up team transform ''before'' coming on the scene, making them late to the fight but not knocked out. The villains never use this device again.
** In ''WesternAnimation/BeastWars'' they actually played with the fast transforming times, letting the characters utilize the various advantages of both forms (or three. Four in the case of Prime).
*** In the episode "Double Jeopardy", Rattrap shoots Tarantulas in the middle of his transformation, but Spider-boy has spent a few seconds gloating about catching Rattrap in the act of espionage, allowing him time to pull his gun and fire.
** ''WesternAnimation/TheTransformersTheMovie'' either [[DoubleSubversion double subverts]] this or [[JustifiedTrope justifies]] it with [[PlanetEater Unicron]]: when he [[ItWasHisSled takes robot form]], Galvatron decides to blast him in his moment of weakness; he's not able to so much as scratch Unicron.
*** When the Constructicons try to combine into Devastator, Rumble and Frenzy create a tremor to knock them apart mid-transformation.
** Horribly subverted by ''WesternAnimation/TransformersPrime''. When Starscream sees an angry Megatron eager to punish him, he changes into a jet, but gets grabbed a half second before he can finish and is hurled into a side of the ''Nemesis''.
* ''WesternAnimation/Ben10'' averts this trope in that while Ben's transformations appear quite lengthy to the viewer, when it is shown from other character's perspective, there's simply a flash of green light that lasts less than a second.
* Whether or not the ''WesternAnimation/AdventuresOfTheGalaxyRangers'' badge activation was a free action or not [[DependingOnTheWriter depended on the episode]]. What was clearer was that Niko and Shane's abilities could be triggered near-instantly, Zachary's ArmCannon appeared to take a second or two, and Doc's ability was so useless in combat that he was a de facto BadassNormal.
* The girls of ''WesternAnimation/WinxClub'' are never interrupted during their transformations. One episode of season 4 even parodies this when the wizards stand around and Ogron comments, "This silly dance again?", though it does show that transformation takes a few seconds at most.
* Parodied in ''WesternAnimation/RobotChicken'', where it takes Vehicle {{Anime/Voltron}} so long to transform (partially because they screwed it up and had to go back several steps to try again) that nearly everyone they were supposed to rescue is dead by the time they actually got there (and the only one left [[DrivenToSuicide kills himself]] after realizing it's "not even the ''[[Anime/GoLion real]]'' Voltron, just [[Anime/DairuggerXV that stupid vehicle one]]!").
* Like most magical girl series, the main heroines of ''{{WesternAnimation/WITCH}}'' are never interrupted in their transformation sequences. One incident, where the girls' teacher catches the tail end of their transformation, is shocked by the light show, giving them the chance to manhandle him (they thought he was working for the enemy). He comes into school the next day, dismissing it as a dream.
* Subverted in grand style in an episode of the 2011 ''WesternAnimation/VoltronForce'' series. A hypersonic Robeast specifically designed to attack Voltron while forming is sent to Arus by Prince Lotor. Daniel's Voltcom powers are crucial in defeating it, as his speed-based powers allow Voltron to compress its combination sequence from 36 seconds to just four. Or as it was put in the comments section on a video recording of the Flash Form on Website/YouTube:
** In the episode "Brains," the trope was explicitly invoked by the writers, as Prince Lotor challenged Voltron to one-on-one combat, and the combination sequence that followed used the classic, rather than modernized, Voltron music. Prince Lotor did nothing to interrupt Voltron's combination sequence, because he wanted a direct one-on-one fight with his nemesis.
* In WesternAnimation/VoltronLegendaryDefender it is left ambiguous until "Stayin' Alive", where it is subverted and lampshaded.
-->'''Keith:''' I don't think the {{Robeast}} is gonna sit around and wait for us to transform.
* In the ''WesternAnimation/ThunderCats'' episode "Monkian's Bargain", Mumm-Ra attempts his transformation, only for Wilykit and Wilykat to lasso and yank him down. He wisely decides to retreat after that.
* Notably [[SubvertedTrope subverted]] in [[WesternAnimation/ThunderCats2011 the 2011 series]], in service of TheUnreveal. In "Omens Part Two," BigBad Mumm-Ra attempts his [[ByThePowerOfGreyskull incantation]] to trigger a OneWingedAngel ("''Ancient Spirits of Evil, transform this decayed form...''") only to be interrupted [[spoiler:[[WeakenedByTheLight by the rising sun burning his skin]].]]
* Averted in one episode of ''WesternAnimation/HeManAndTheMastersOfTheUniverse2002'' where Prince Adam is actually attacked and interrupted when he's in the middle of calling forth [[ByThePowerOfGreyskull The Power of Greyskull]], (ThemeMusicPowerup and all).
* Mercilessly lampshaded in ''WesternAnimation/{{Mad}}'' during a skit that combined ''Anime/DragonBallZ'' with ''Film/MoneyBall''. Vegeta takes so long to power up, that by the time he's done, people in the bleachers and dugouts are taking naps, playing chess, and watching through the entirety of Creator/PeterJackson's ''Film/KingKong2005''. And the payoff: He uses his built up power to bunt the ball.
* In ''WesternAnimation/StarWarsTheCloneWars'', this is averted with Droidikas. While they generally transition from their ball mode to combat mode quickly, Ahsoka and Anakin manage to kill one while it is in wheel mode and lightsaber range in the movie.
* Max in ''WesternAnimation/MaxSteel2013'' emits a forcefield when transforming, preventing interruption.