History NightmareFuel / Digimon

* Boltboutamon is another very disturbing Digimon in a similar vein to Millenniumon, being the Jogress of a Dark Master and a major ''Digimon Adventure'' villain, but instead of Chimeramon and Machinedramon, we have Piedmon and Myotismon. Appearance-wise, it's not that disturbing, resembling a vampire aristocrat with a classy Venetian flair. What's actually disturbing is what it actually does. It ''compels Piedmon to forcefully absorb Myotismon'' (and sometimes the other way around) and has the will of neither, being an independent entity who seeks to eradicate light and cover the world in darkness. The thought of it mind controlling Piedmon, already a dangerous and unpredictable Digimon, into absorbing another just-as-dangerous Digimon is unsettling. And to make things worse, in ''VideoGame/DigimonWorldNextOrder'', we find out just like [=GranDracumon=], this thing is actually even stronger than the Seven Great Demon Lords.

While he doesn't really do much in the long run and the destruction he does is easily reversible, it doesn't change how horrifying Quartzmon really is, simply because very few Digimon villains play to his level. It can catch you off guard if you aren't expecting it.
* Quartzmon is a genuinely disturbing Digimon. Its main body is a slimy, chalk-white D-Reaper-esque mess with [[MultiArmedAndDangerous multiple arms]], a mask with six eyes and a large BellyMouth. He can also convert entire portions of the human world into [=DigiQuartz=] and moves onto taking over the world instantly when he's fully manifested. If you ask a Japanese fan they'll tell you this guy is just as bad as the '''D-Reaper'' and it's for good reason.

* He's one of the few villains who merrily attempt a HostageSituation against TheHero by ''showing the faces of the numerous people he absorbed'' in obvious AndIMustScream situations, and dares if Tagiru were to hit him, he could say goodbye to everyone else. The way he does it is just hardcore BodyHorror; he extends his limbs in a tree-like fashion and the faces of his victims appear on each "branch", aware that they are being absorbed but can't do anything against it. He shows more when Tagiru and Arresterdramon gets close to his core.
* Just how he ''literally'' managed to TakeOverTheWorld. It doesn't last long, but Digimon villains who attempt to take over the world are usually stopped short before they manage it. This guy isn't one of these cases and by the point Tagiru fights him he's the last man standing.

* According to Archnemon's (Arukenimon) profile, her "Predation Spider" technique consists of her releasing countless carnivorous Dokugumon from her abdomen. For reference, Dokugumon are WalkingWasteland BigCreepyCrawlies that are about the size of a ''car''. And they also have a mass-spawning attack that releases hordes of [=KoDokugumon=]. In other words, Archnemon has an attack that summons spiders, [[FromBadToWorse which can summon even more spiders]]. Talk about an arachnophobe's worst nightmare...

** To make it worse, the first time it ever appeared in canon, it developed a disturbing relationship with [[Anime/DigimonTamers Ryo Akiyama]].

** To make it worse, the only time it ever appeared in canon, it developed a disturbing relationship with [[Anime/DigimonTamers Ryo Akiyama]].

* Remember [=SkullGreymon=]? And remember that bone club Ogremon carries around? That's a [=SkullGreymon's=] femur. How the heck did an Ogremon get its hands on a [=SkullGreymon's=] femur.

* Keramon. [[UncannyValley Let's see...]] [[BlackEyesOfEvil empty black eyes]], [[PsychoticSmirk a much-too-vacant smile]] and insanely long, boneless arms. He's even creepier when he appears in ''Anime/DigimonDataSquad'' as a MonsterOfTheWeek since he moves around a lot more. At least [[Franchise/TheSlenderManMythos the Slenderman]] didn't have a face. Even Diaboromon's eye movements weren't this creepy.

* To say nothing of the man responsible for both of the above, [[TheSociopath Akihiro]] [[MadScientist Kurata]]. He's hands down the most evil character in the franchise. Creating the aforementioned Gizumon, mechanical monstrosities that make other Digimon DeaderThanDead by stopping them from reincarnating like usual, and experimenting in creating half-Digimon hybrids were only the start. Creating a weapon of mass destruction to kill thousands of Digimon in one shot, forcing the TeenGenius on the heroes' side to a FaceHeelTurn by threatening to kill his IllGirl little sister with an explosive collar, trying to replicate his hybrid experiments on said IllGirl, and finally awakening a mighty Demon Lord and merging with it to destroy all of his enemies so that he could then wipe out all Digimon and have total control of both the Digital World and the human world...well, that should give you an idea of how loathsome this guy is. And his motives? [[EvilIsPetty Petty]] {{Greed}}, [[DirtyCoward cowardice]], [[FantasticRacism prejudice]], and InferioritySuperiorityComplex.

** To make it worse, the only time it ever appeared in canon, it developed a disturbing FoeYay relationship with [[Anime/DigimonTamers Ryo Akiyama]].

[[quoteright:248:https://static.tvtropes.org/pmwiki/pub/images/ogreeyes_5810.jpg]]

* Keramon. [[UncannyValley Let's see...]] [[BlackEyesOfEvil empty black eyes]], [[PsychoticSmirk a much-too-vacant smile]] and insanely long, boneless arms. He's even creepier when he appears in ''Anime/DigimonSavers'' as a MonsterOfTheWeek since he moves around a lot more. At least [[Franchise/TheSlenderManMythos the Slenderman]] didn't have a face. Even Diaboromon's eye movements weren't this creepy.

* NightmareFuel/DigimonUniverseApplimonsters

* Remember [=SkullGreymon=]? And remember that bone club Orgemon carries around? That's a [=SkullGreymon's=] femur. How the heck did an Ogremon get its hands on a [=SkullGreymon's=] femur.

[[folder:Other]]

* According to Archnemon's (Arukenimon) profile, her "Predation Spider" technique consist in her releasing countless carnivorous Dokugumon from her abdomen. Let that sink in for a second...
** For reference, Dokugumon are WalkingWasteland BigCreepyCrawlies that are about the size of a ''car''. And they also have a mass-spawning attack that releases hordes of [=KoDokugumon=].

** Keramon's entire Digivolution line is the stuff of nightmares. Kuramon maybe less so, but Tsumemon starts to ''[[BigEater eat the Internet]]'', Infermon is a HUGE armored insect that is also [[LightningBruiser disturbingly fast]], and Diaboromon, besides his [[EvilSoundsDeep demonic voice]], equally fast speed, and the fact that his Japanese name (Diablomon) makes it clear [[SatanicArchetype what he resembles]], is very, very smart. And then there's [[EldritchAbomination Armageddemon]]...

The series as a whole was pretty dark, with moments of violence, torture, death and...well, needless to say, for a [[WhatDoYouMeanItsForKids "kid's show,"]] it sure got edgy at times.

* Ogudomon X is a horrifying Digimon and that doesn't even begin to describe it. Its mere existence can cause the entire Digital World to fall apart and in Digimon Chronicle X, it's revealed that it has the same structure as God Himself. Imagine what would happen if this thing succeeded in destroying the entire Digital World had Jesmon GX not interfered.

* Chaosmon are really disturbing, even by the standards the Digital World has. They're not supposed to exist, which shows by the very edges of their bodies glitch. Even worse, the Digimon that wind up creating a Chaosmon are still alive and conscious in its shoulders, with their severed heads turned into weapons, in a dark twist on Omegamon's design.

* The state of Blossomon's victims after he drains them in episode four. ''Seriously.''

* Keramon. [[UncannyValley Let's see...]] [[BlackEyesOfEvil empty black eyes]], [[PsychoticSmirk a much-too-vacant smile]] and insanely long, boneless arms. He's even creepier when he appears in Anime/DigimonSavers as a MonsterOfTheWeek since he moves around a lot more. At least [[Franchise/TheSlenderManMythos the Slenderman]] didn't have a face. Even Diaboromon's eye movements weren't this creepy.

* [[spoiler: After having absorbed the Gehenna Sphere, Lucemon.]]

[[folder:Digimon Adventure 01]]
* The [[http://www.youtube.com/watch?v=1bsku47645g forced Digivolution.]] The fact the TransformationSequence ''[[SoundtrackDissonance just didn't feel right]]'' didn't help toning down [[{{HSQ}} the audience's reactions.]]
* Ogremon in "Home Away From Home," pictured on the right. Those eyes.
* Tokomon's teeth.
* Raremon could easily come off as this. If [[VideoGame/AmnesiaTheDarkDescent Mr.Face]] raped a bionic manatee, this would be the result.
* Myotismon in general. Venom Myotismon is even more due to his...eating habits...
** Gatomon's life under Myotismon qualifies, and Wizardmon [[spoiler:getting ''shredded'' by Myotismon, even in the edited version]]
* Piedmon's, ah, "key-chain hobby." What makes it even scarier is his hunting them down one by one in a methodical and sadistic manner. Except for the fact he doesn't actually kill them, it's almost like watching a slasher killer hunting down his victims one by one.
** Not to mention being turned into an inanimate object warrants an AndIMustScream.
* [[PsychoticManchild Puppetmon.]]
* Machinedramon. The combination of his CreepyMonotone and the fact most of his dialog is composed of how much he enjoys killing people makes him one of the scariest villains in the show.
--> '''Machinedramon''': Just what I was looking for, ''victims''!
* The penultimate episode, when [[spoiler: Apocalymon pretty much ''deleted'' the Digidestined and their partners.]] That's got to be pretty traumatizing for a kid watching the show...
* [[http://www.youtube.com/watch?v=15Xs6CzphV8 The trailer for the PSP video game adaptation.]] At first it's all bright and cheery and gives you a real nostalgia kick. Then the shot of the logo lasts a bit too long and starts to glitch...the camera pulls back to reveal the background of the Internet from ''Our War Game!'' all in complete silence. Then you hear Diaboromon giggle. Unnerving stuff.

[[folder:Digimon Adventure 02]]
* The Dark Ocean, and the creatures living in it.
* The Digimon Emperor's VillainousBreakdown.
** [[spoiler: Anyone who grew up seeing the show HAD to have thought for a moment that Ken chopped off his own hands before it was revealed he removed his gloves.]]
* Oikawa's creepy email to young Ken in "Genesis of Evil".
* Arukenimon appearing in Ken's room in the middle of the night in "If I Had a Tail Hammer".
* Arukenimon and Mummymon abducting children to implant with Dark Spores. And [[CreepyChild the children]] themselves, even before getting the Dark Spores.
* Oikawa's hallucinations in the cemetery in "[=BlackWarGreymon's Destiny=]".
* [=MaloMyotismon=] torture-murdering [[AlasPoorVillain Arukenimon and Mummymon]].
* The completely surreal final battle against Cherubimon in ''Hurricane Touchdown/Supreme Evolution! The Golden Digimentals''.

[[folder:Digimon Tamers]]
''Digimon Tamers'' tends to be described as "''Anime/NeonGenesisEvangelion'' [[JustForFun/XMeetsY with]] {{mons}}," or "''Anime/SerialExperimentsLain'' [[WhatDoYouMeanItsForKids for kids]]", and for good reason. Series head writer Creator/ChiakiKonaka was also the man behind ''Lain'' and is reportedly a big fan of ''Evangelion''. Distinguished for {{deconstruct|edTrope}}ing the {{Mons}} genre and being DarkerAndEdgier than every other ''Digimon'' canon since [[Anime/DigimonXEvolution (with one possible exception)]], it is significantly more cerebral, psychological, technologically minded, and becomes one hell of a CosmicHorrorStory by the end.
* Dark Lizardmon's fate: It was captured by Hypnos, interrogated under torture and literally torn apart for analysis while fully conscious after Yamaki was done, in a process that actually looks ''more'' painful than the equivalent, that is to say an autopsy on a ''living'' human. Not to mention that this is a close up to what Shaggai/Juggernaut does to it's victims in episode 14.
* An early warning of things to come, episode 14, where the dying screams of the Digimon [[spoiler: deleted by Shaggai/Juggernaut]] can be heard. A [[IncrediblyLamePun tamer]] version of ''VideoGame/{{Homeworld}}'' cataclysm's corruption by the beast.
* Orochimon's PsychoticSmirk[=/=]Rape Face.
* Everything that happened to Juri after [[spoiler: Leomon died]] is pretty creepy. So much so that ''Juri in general'' might just become NightmareFuel for people upon re-watching the series now that they know everything about her.
** Her creepy hand-puppet might have already been this.
** In episode 47, the [[http://www.youtube.com/watch?v=Cc_Srg40mR0 Mind Rape sequence]] of her reliving witnessing her mother's death. [[spoiler:And the fact that this goes on for weeks]].
* As scary as Dark Evolutions are, Megidramon definitely takes the cake. It certainly doesn't help that its name is derived from the words "Megiddo" and "Dragon", considering that Har Megiddo is the mountain, where the apocalypse is (according to the bible) going to start. Har Megiddo has later been given its more popular name, "Armageddon". In other words, Megidramon's name is closer to original idea of the end of the world than "Armageddon". It doesn't help that before it [[spoiler: Takato is practically SCREAMING about how [[RoaringRampageOfRevenge he is going to make Beelzemon]] suffer For killing Leomon]].
* The [[spoiler: [[EldritchAbomination D-Reaper]]]]. Imagine a monster that combines the most horrifying aspects of [[Franchise/CthulhuMythos Lovecraftian horror]], [[Anime/NeonGenesisEvangelion the Angels]], [[VideoGame/{{Homeworld}} The Beast]], and [[Anime/TengenToppaGurrenLagann the Anti-Spirals]]. Now remove any [[WellIntentionedExtremist Well Intentioned Extremism]] or BlueAndOrangeMorality and replace it with sheer malevolence - and put it in a [[WhatDoYouMeanItsForKids kid's show]].
* The BodyHorror Beelzemon undergoes after absorbing Taomon and Rapidmon's data. It involved Beelzemon's shoulders bulging until parts of Taomon and Rapidmon started ''protruding out of his skin'' with Beelzemon clearly in pain from the experience. Surprisingly enough, Saban kept this part intact, completely unedited.
* Mephistomon dropping his human disguise in ''Battle of Adventurers'', specifically the part where his human head retracts and his normal one bursts out.

[[folder:Digimon Frontier]]
* Duskmon, and not just for his appearance either.
* [[spoiler:"YOU MUST CHOOSE TO FOLLOW ME OR BE DESTROYED"]] or [[spoiler:"Follow me or die. Which will you choose?" And then in big Japanese font just the word "Choose."]] at the end of Episode 49 in the English dub and subbed versions. And for more chills, think about it: every screen in Shibuya and probably the rest of the world says one of those messages depending on the version...[[FridgeHorror AND THEN YOUR TV SAYS IT AT THE END.]] [[spoiler:Lucemon is warning YOU, THE VIEWER. They make you believe for a second that Lucemon has entered OUR WORLD AND IS TAKING IT OVER WITH ABSOLUTELY NO EFFORT.]] It gets worse when in the dub, HE ACTUALLY SAYS IT. And in the voice of what sounds like Terriormon from Tamers with a slit throat!
** [[spoiler: One needs to consider this: Lucemon's voice in the English dub is IZZY from season 1 and 2! The same voice actor that gave us that very intelligent kid is now using that same voice and making him evil. In a way, it's like watching Izzy be an evil Digimon - that's about to destroy the world!]]

[[folder:Digimon Savers/Data Squad]]
* The Gizumon. They already look wrong, but then you see what they do. They're designed to kill Digimon. Not defeat, or capture, kill. And any Digimon they kill stays dead, without turning into a egg. And they rampaged across the Digital Worlds ten years before the series begins, massacring its population.
* Also, the shot of Digimon in a lab, hanging in tubes. The [[StrappedToAnOperatingTable implications]] are all kinds of wrong, especially since many of those Digimon are In-training level.
* To say nothing of the man responsible for both of the above, [[TheSociopath Akihiro]] [[MadScientist Kurata]]. He's hands down the most evil character in the franchise. Creating the aforementioned Gizumon, mechanical monstrosities that make other Digimon DeaderThanDead by stopping them from reincarnating like usual, and experimenting in creating half-Digimon hybrids were only the start. Creating a weapon of mass destruction to kill thousands of Digimon in one shot, forcing the TeenGenius on the heroes' side to a FaceHeelTurn by threatening to kill his IllGirl little sister with an explosive collar, trying to replicate his hybrid experiments on said IllGirl, and finally awakening a mighty Demon Lord and merging with it to destroy all of his enemies so that he could then wipe out all Digimon and have total control of both the Digital World and the human world...well, that should give you an idea of how loathsome this guy is. And his motives? [[EvilIsPetty Petty]] {{Greed}}, [[DirtyCoward cowardice]], [[FantasticRacism prejudice]], and InferioritySuperiorityComplex.
[[/folder]]

[[folder:Digimon Xros Wars/Fusion]]
* [[spoiler: After having absorbed the Gehenna Sphere, Lucemon.]]

[[AC:The Young Hunters Leaping Through Time]]
* The state of Blossomon's victims after he drains them in episode four. ''Seriously.''
* This may be intentional or not, but Dracumon's evolution to Yaksamon shows him ''ripping his own face off.''
* Sephirotmon was just plain ''creepy''. The scene where laughing children appeared from inside his mouth didn't help.
[[/folder]]

[[folder:Films]]
[[AC:Digimon: The Movie]]
* In ''Digimon Adventure'', when Koromon decides to give his human friends a face hug. Anyone who seen ''{{Film/Alien}}'' would find this horrifying.
* Keramon. [[UncannyValley Let's see...]] [[BlackEyesOfEvil empty black eyes]], [[PsychoticSmirk a much-too-vacant smile]] and insanely long, boneless arms. He's even creepier when he appears in Anime/DigimonSavers as a MonsterOfTheWeek since he moves around a lot more. At least [[Franchise/TheSlenderManMythos the Slenderman]] didn't have a face. Even Diaboromon's eye movements weren't this creepy.
** Keramon's entire Digivolution line is the stuff of nightmares. Kuramon maybe less so, but Tsumemon starts to ''[[BigEater eat the Internet]]'', Infermon is a HUGE armored insect that is also [[LightningBruiser disturbingly fast]], and Diaboromon, besides his [[EvilSoundsDeep demonic voice]], equally fast speed, and the fact that his Japanese name (Diablomon) makes it clear [[SatanicArchetype what he resembles]], is very, very smart. And then there's [[EldritchAbomination Armageddemon]]...

[[AC:Digimon X Evolution]]
* The X-Antibody in its own right is not so bad. What's worse is the Death-X-Antibody. If you have seen a Doru-Greymon, you do not want to see a Death-X-Doru-Greymon. It's essentially the same, only darker, more diabolic and with claws that can pretty much rip anything apart.
* X-Evolution has the probably most evil Digimon ever shown: Death-X-Mon (or Dexmon, depending on translation). It isn't so bad that it looks like a mechanical dragon, combined with a demon of some sort. It is immortal as long as the main character, Dorumon, is alive. The solution: Dorumon, Digivolved into Alphamon, summons the Ouryuuken (Ultimate Warblade Dragon King Sword, in itself another digimon but that bit isn't mentioned in the film) and throws it like a boomerang, so it hits himself, Death-X-Mon and Yggdrasil, which is the only thing keeping the world from being destroyed.
* Somewhat better, somewhat worse: Afterwards, Omegamon takes Dorumon's Digicore and becomes Omegamon-X, and uses a brand new technique, called "ALL DELETE!", which finishes off Yggdrasil leading to the reboot of the Digital World, without Yggdrasil or the Death-X digimon.
* The Royal Knights (the good guys) work for Yggdrasil (the deity) who created Death-X-Digimon, including the Death-X-mon mentioned above (The Dragon). And [[spoiler: at first]] they never question a command.
* Any battle involving Omegamon. His destructive power is far above anyone else's. In one scene, he managed to curb stomp [=MetalGarurumon=]-X and [=WarGreymon=]-X, following that with killing Dukemon [[spoiler: note that Dukemon let himself be impaled, because "There was something I wanted to check"]]. And that's despite Dukemon being on Omegamon's side.
* The opening scene. We get to see Leomon dying in front of Dorumon... and this scene is shown again and again whether it's necessary or not.
* Most of all, the deaths of the surviving digimon. Ways to die include death by virus (collapsing and dissolving), disintegration by energy beam, impaling, literally crushing the skull, being ripped to shreds and eaten alive, to list the most memorable ones. '''All''' shown onscreen, while the last two where preceded by the endless bloodthirsty cries of the swarm of Death-X-[=DoruGreymon=]. That probably had to do with why the film was never dubbed.

[[/folder]]

[[folder:Other]]
* The Seven Great Demon Lords in general. A group of uber-power demons who do whatever they like with near impunity, with control over every Digimon in the Nightmare Soldier family, which acts as their army. And if a Digimon is killed by one of them, rather than being reborn as a Digiegg somewhere, they become a part of said Demon Lord.
* The profiles on the early (pre-2002) cyborg Digimon, which imply someone or some''thing'' was using them as guinea pigs to create Mugendramon and Chimarimon, and given what those two Jogress into... yeah.
* Speaking of what they Jogress into, Millenniummon is pretty damned creepy. A near-unstoppable monster that's every bit as insane and evil as they are, capable of forcing its enemies into another dimension when it fights them. And it gets worse. Kill a Millenniummon? Its spirit will be reborn as [=MoonMillenniummon=], which doesn't have a body and can't be killed, while its body just gets right back up again, even more powerful than before and capable of travelling through time. And just for added fun, [=ZeedMillenniummon=] is an OmnicidalManiac.
** To make it worse, the only time it ever appeared in canon, it developed a disturbing FoeYay relationship with [[Anime/DigimonTamers Ryo Akiyama]].
* Megidramon manages to get even more terrifying than Tamers already made it. Its body is made of Chrome Digizoid, meaning it's near-completely indestructible. Near-indestructible, insanely violent and capable of breaking reality just by existing.
** And apparently Megidramon is capable of VoluntaryShapeshifting to [=ChaosDukemon=]. The one good thing about Megidramon was that it was apparently just a mindless beast. Now imagine something born ferociously violent, indestructible, capable of breaking reality by existing, and it's intelligent.
* Chaosmon are really disturbing, even by the standards the Digital World has. They're not supposed to exist, which shows by the very edges of their bodies glitch. Even worse, the Digimon that wind up creating a Chaosmon are still alive and conscious in its shoulders, with their severed heads turned into weapons, in a dark twist on Omegamon's design.
* Remember [=SkullGreymon=]? And remember that bone club Orgemon carries around? That's a [=SkullGreymon's=] femur. How the heck did an Ogremon get its hands on a [=SkullGreymon's=] femur.
** And if Ogremon wasn't scary enough, there's his evolution: Titamon. A creature born from the hatred of the hatred of all Digimon defeated by the Olympos XII. His sword, the Zanjintou, is made with [=SkullGreymon's=] head, and it's able to torment anyone pierced by it with hallucinations. The worst part? The skulls in his arms are from every single opponent he has defeated, and he's able to use them to summon an undead legion on his command. There's a reason why this beast is called an OneManArmy
* Diablomon (Or Diaboromon, if you prefer your dub names) is already creepy, but the purpose of every Diablomon ever? Hack into human military banks, and destroy humanity with nukes.
* According to Archnemon's (Arukenimon) profile, her "Predation Spider" technique consist in her releasing countless carnivorous Dokugumon from her abdomen. Let that sink in for a second...
** For reference, Dokugumon are WalkingWasteland BigCreepyCrawlies that are about the size of a ''car''. And they also have a mass-spawning attack that releases hordes of [=KoDokugumon=].


[[/folder]]

* The Gizmon. They already look wrong, but then you see what they do. They're designed to kill Digimon. Not defeat, or capture, kill. And any Digimon they kill stays dead, without turning into a egg. And they rampaged across the Digital Worlds ten years before the series begins, massacring its population.