[[quoteright:265:[[Manga/RanmaOneHalf http://static.tvtropes.org/pmwiki/pub/images/demonresize.jpg]]]]
[[caption-width-right:265:Sōun is not happy.]]

The sudden eruption of an enraged individual's head into that of a demonic monster many times its normal size, with bulging eyes, wagging tongue, pointed ears and teeth, and sometimes jets of steam or flame from its nostrils. Usually expected to cow the viewer into defeat or submission; usually doesn't work.

Compare with ScaryFlashlightFace, GameFace, BurningWithAnger and LoomingSilhouetteOfRage. Close relative of NightmareFace.
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!!Examples

[[foldercontrol]]

[[folder:Advertising]]

* A seemingly innocent little girl playing with her dollie in an Eggo Waffles commercial, when her brother tried snatching one of her waffles. "L'EGGO MY EGGO!!!" indeed. Link to a video of that [[http://www.youtube.com/watch?v=Ud8p8gxqpJ4 here]]. It proved to be [[UncannyValley too scary]], so it was edited to [[http://www.youtube.com/watch?v=-1XMjQKtoTQ this]].
[[/folder]]

[[folder:Anime & Manga]]
* Sōun Tendō, and occasionally his daughters, from ''Manga/RanmaOneHalf''. It became such a RunningGag, that at one point a unimpressed Akane calmed him down by literally pulling a cork from it and causing it to fly off like a deflated balloon.
* Fujimura Taiga positively terrifies one of her students this way in the first episode of ''VisualNovel/FateStayNight'', reducing the boy to a state of BlueWithShock.
* Kiyomaro Takamine of ''KonjikiNoGashBell'' (a.k.a. Kiyo of ''Manga/ZatchBell'') does this fairly often, even to having flames and heat-waves appear behind him.
** More terror, as well as more memorable instances of him [[http://www.mangareader.net/266-18617-14/zatch-bell/chapter-256.html here]], [[http://www.mangareader.net/266-18617-11/zatch-bell/chapter-256.html here]], and [[http://www.mangareader.net/266-18617-12/zatch-bell/chapter-256.html here]].
* Yukino from ''Manga/KareKano'' had an extended sequence of chasing down someone who angered her while in full DemonHead mode.
* ''Manga/OnePiece''.
** Nami and Sanji have a tendency to do this a lot. Later on, it is actually ''weaponized'' by [[DragQueen Emporio Ivankov]].
* DaChief from ''Anime/DominionTankPolice'' is in a near-constant state of rage, complete with CrossPoppingVeins and bloodshot eyes; it doesn't take a lot to push him over the edge into full-blown DemonHead mode.
* An effect common in the ''Anime/{{Pokemon}}'' anime.
** "Leer" and "Scary Face", moves used in a battle, sometimes use this.
** Jesse of Team Rocket sometimes does this when she gets angry at James and Meowth, e.g. in "One Trick Phony".
*** And of course the second ninja school gave us...uh...[[http://i35.photobucket.com/albums/d174/Razer_2mb/8U/PWSGYIU56LJT6EVKNRKBHQWRQXOGFE7F.gif 8U]].
** Misty occasionally does it when she gets mad at Ash.
* ''Manga/InuYasha''
** You wouldn't expect Kagome to get to this point, but she does at least once. And Shippo tries to stand in for Sango.
** Inu-Yasha himself does it at one point, too.
* In ''Manga/GegegeNoKitaro'', Kitaro's otherwise nice and quiet CatGirl friend Nekomusume would morph her face into a scary cat-monster when enraged or hungry for fish or mice. The version from ''Manga/HakabaKitaro'' is even ''worse'', since it's less cartoony and more horror-like.
* This happens a lot beginning in the late 200s to early 300s of ''Manga/DetectiveConan'' when one character was yelling at another (usually in the more comedic episodes). Is usually Ran or Kogoro but could be anyone.
* ''Anime/HanaukyoMaidTai''
** Episode 8. Happens to head security maid Konoe Tsurugi while Taro is trying to get Cynthia to go to sleep.
** ''La Vérité''
*** Episode 1. Ikuyo Suzuki when she admits that she was lying.
*** Episode 5. Happens to Konoe again when Ryuuka asks to become one of the security maids protecting Taro. Konoe demands to know why they should hire Ryuuka, who is the leader of their enemies the Jihiyou family.
*** Episode 12. Two of Taro's personal maids get angry when the third keeps Taro to herself.
* ''Anime/{{FLCL}}'' episode "Brittle Bullet". Haruko gets one when she's wearing an Elvis Presley costume and talking with Naota in his room.
* In ''Manga/{{Sekirei}}'', Miya is able to project one while maintaining a composed look. It still freaks out everyone that's looking at her at the time however.
* In the early chapters/episodes of ''Anime/{{Naruto}}'', Iruka does this. A current theory on this is it's a combination genjutsu technique and some kind of technique that amplifies the users voice and vocal pressure, since you can see Naruto's hair ruffling in the wind as he's doing this.
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[[folder:Comic Books]]
* The {{Animesque}} ''ComicBook/GoldDigger'' has a variation: Theodore Diggers' "[[ExactlyWhatItSaysOnTheTin Flaming Skull Bit]]".
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[[folder:Fan Works]]
* In ''Fanfic/FullmetalLol'', [[spoiler:Winry]] grows a second head that tears out Ed's bowels whenever he [[spoiler: [[BerserkButton breaks her automail]]]]. And [[PlayedForLaughs it is hilarious!]]
[[/folder]]

[[folder:Films -- Animation]]
* ''Anime/SpiritedAway'': Yubaba's head is already huge, and when she gets spitting-fire and tentacle-hair mad it's damn scary.
[[/folder]]

[[folder:Films -- Live-Action]]
* [[http://www.youtube.com/watch?v=8-Pdlxd_rro Large Marge]] from ''Film/PeeWeesBigAdventure'' was a source of much trauma because of this.
* Similarly enough, the Librarian Ghost from ''Film/{{Ghostbusters}}'' also does this. Interestingly enough, an earlier version of this puppet was rejected because it was too scary but then recycled and used in the vampire film ''Fright Night''.
* In the 1980s vampire film ''Film/FrightNight'', the third phase of vampiric transformation is just like this.
* The dog PC in the film ''PAWS'' does this to scare off the main character's annoying little sister.
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[[folder:Literature]]
* Bes from ''TheKaneChronicles'', whose trademark attack is to scare the shit out of his opponent by distorting his face hideously and screaming "BOO!" Not that he's that handsome when he's not making that face.
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[[folder:Myths & Religion]]
* More than a few {{youkai}} and {{obake}} are capable of doing this. Gaki, a type of life-stealing ghost created from humans who died of starvation (or while feeling avaricious or envious), are shapeshifters in general, but delight in suddenly assuming ghastly visages to startle and terrify. Ran, a CuteMonsterGirl from UruseiYatsura, is loosely based on the Gaki. According to traditional lore, Oni women normally look extremely beautiful, but can become terrifyingly ugly when angry or jealous.
[[/folder]]

[[folder: Stand-Up Comedy]]
* Creator/BillCosby has this happen in his ''Chocolate Cake for Breakfast'' sketch; his wife comes downstairs and sees, [[TitleDrop well, her kids having chocolate cake for breakfast]], although it's more of a DemBones-head.
--> ''"I've often heard of people having a conniption, but I'd never seen one. You don't wanna see 'em! My wife's face...split. The skin and hair split and came off of her face so that there was nothing except the skull! And orange light came out of her hair and it lit all around! And fire shot from her eye sockets and began to burn my stomach! And she screamed, in this Banshee's voice; 'WHERE DID THEY GET CHOCOLATE CKAE FROM!?'"''
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[[folder:Video Games]]
* In ''VideoGame/MortalKombat3'', Kabal has a fatality where he removes his mask, exposing his horrifically scarred face. As per this trope, it appears to us with greatly increased size, glowing eyes, wagging tongue, and a rather chilling scream. This actually manages to scare his victims to death.
[[/folder]]

[[folder:Web Comics]]
* ''[[Webcomic/EightBitTheater 8-Bit Theater]]'':
** White Mage in [[http://www.nuklearpower.com/2004/11/11/episode-481-black-belt-walks-into-a-bar/ this installment]]. (Scroll down a bit.)
** [[spoiler: Chaos later appears as one of these on Sarda's body after Sarda overloaded himself with magic power.]]
* [[Webcomic/ProblemSleuth Mobster Kingpin]] transforms into [[OneWingedAngel Demonhead Mobster Kingpin]], who is predictably one of these. What's notable about this, however, is that once he transforms, he ''stays'' looking like that.
* ''Webcomic/OurLittleAdventure''
** [[http://danielscreations.com/ola/comics/ep0074.html Pauline can get quite scary if she wants.]]
** [[http://danielscreations.com/ola/comics/ep0236.html Played very straight by Angelo.]] It's just another hint that he's not quite human.
* The Operator does this [[http://mansionofe.comicgenesis.com/d/20030919.html at one point]] in ''Webcomic/TheMansionOfE''.
[[/folder]]

[[folder:Web Original]]
* In ''WebVideo/TheNostalgiaCritic'' review of ''GoodBurger'', when the line "Welcome to [[TitleDrop Good Burger]], home of the Good burger. Can I take your order?" is said for the last time, the nostalgia critic replies; "Yes. '''[[http://www.youtube.com/watch?v=sPd_Ktr7FWk DIIIIIIIIIIIIE!!!]]'''" and his face is replaced by that of the Balrog from the ''[[Film/TheLordOfTheRings Lord of the Rings]]''.
[[/folder]]

[[folder:Western Animation]]
* Ozu from ''WesternAnimation/KappaMikey'' tends to do this when angered. However, most of the characers work for him, so this generally ''does'' work, if only because he can fire all of them.
* Exhibited several times by Starfire in the {{Animesque}} ''WesternAnimation/TeenTitans'', usually when another girl was flirting with Robin, and once by Raven in silhouette.
* ''Once'', and ''only'' once by the [[http://img21.imageshack.us/img21/8016/058uz.jpg title character]] on the Asian-influenced ''WesternAnimation/AvatarTheLastAirbender'', complete with waving arms, BlankWhiteEyes, CrossPoppingVeins, and face reddening. Due in part of the show's well-known characteristic of disdaining from over-the-top cartoony anime tropes in favor of utilizing the more cinematic style of anime, the effect overall left a bad taste in the mouths of viewers.
* ''WesternAnimation/CourageTheCowardlyDog'' has a very creepy example of this in the episode "Courage in the Big Stinkin' City", with a girl playing the violin that Courage walks in on that changes into clay-mation.
** Eustace also achieves a similar effect with a giant mask he [[HammerSpace pulls out of nowhere.]]
* ''WesternAnimation/CodenameKidsNextDoor'': Numbuh 3 when you make her mad. Complete with [[FireballEyeballs flaming eyes]] and [[ScaryTeeth truckloads of razor sharp teeth]].
* ''WesternAnimation/TotallySpies''. Happens to Sam and WesternAnimation/MartinMystery in the {{crossover}} episode "Totally Mystery Much?"
* The title character on ''WesternAnimation/RockosModernLife'', usually mild-mannered to a fault, gets really angry at Filburt for making Rocko miss the deadline on a sale at the grocery store, and does this when threatening to do something NOT VERY NICE!!
* [[BewareTheNiceOnes Pinkie]] [[BewareTheSillyOnes Pie]] is seen doing this in the ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' episode "The Last Round-Up", while being extremily furious because she thinks the normally-honest Applejack is [[BerserkButton trying to weasel out of a promise]], which is [[ExactWords not what she's actually doing]].
-->'''Pinkie Pie:''' ''APPLEJACK! '''[[VoiceOfTheLegion YOU PINKIE PROMISED!!]]'''''
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