History NightmareFuel / Pokedex

%% Fridge Horror is not allowed on Nightmare Fuel pages. Please place such examples in the Fridge page.

[[Franchise/{{Pokemon}} The Pokédex]] acts like a real world wiki: as such, there are [[NightmareFuel some pretty scary things]] [[NightmareFuel/{{Pokemon}} in there]]. It is worth noting that many of the entries are based on InUniverse rumours and stories, and thus should be taken with a grain of Shoal Salt.

!! Notes
* This page is ''only'' about the Pokedex entries. ''NOT'' a page regarding specific game mechanics or plot settings or the like. For those kind of entries you might want to check the respective game's NightmareFuel page.

[[foldercontrol]]

[[folder:General]]
* The entire idea of having "[[OurGhostsAreDifferent Ghost]]" as [[SoulPower an elemental type]] is creepy. If their dex entries are to be believed, most of them are at least linked to the afterlife in some ways, if not outright rumored to be dead people in Pokémon forms (as in the case of Yamask and Phantump, for instance). This puts a whole new spin to the very idea of the game, in that you aren't just capturing wild animals and using them in battle, but ''capturing souls of the dead or harbingers of afterlife or such and using them in battle'', and that's highly disturbing. It's no coincidence that Ghost-types are disproportionately likely to be on this list.
* Some game sprites and animations (which can also be seen in the many Dexes) are very scary-looking:
** The Gen I sprites, due to being very OffModel in comparison to their official art, for example [[http://bulbapedia.bulbagarden.net/wiki/File:Spr_1b_103.png Exeggutor's Red and Blue sprite,]] [[http://bulbapedia.bulbagarden.net/wiki/File:Spr_1g_031.png Nidoqueen's Green sprite,]] [[http://bulbapedia.bulbagarden.net/wiki/File:Spr_1b_042.png Golbat,]] [[http://bulbapedia.bulbagarden.net/wiki/File:Spr_1g_151.png Mew's original sprite]] in the Japanese games and [[http://bulbapedia.bulbagarden.net/wiki/File:Spr_1b_093.png Haunter's sprite.]]
** While animated sprites are nothing new in the ''Pokémon'' franchise, ''VideoGame/PokemonBlackAndWhite'' went all-in with the animations: [[https://www.youtube.com/watch?v=SLKbOt89LsA Dusknoir's]] and [[https://www.youtube.com/watch?v=BHq9TxD_ySc Magnezone's]] constantly-shifting, "floating" single red eye can be unsettling, though at least Dusknoir doesn't open and close its BellyMouth this time. [[https://www.youtube.com/watch?v=hhdThARMwRA Bronzong]], meanwhile, floats around in the air with its big flashing eyes.
[[/folder]]

[[folder:First Generation Pokémon (#1-#151)]]
* Beedrill are said to attack in big swarms, are as aggressive as hornets, have stingers for hands, and are 3-foot tall.
* Golbat. From the Pokédex, we learn that Golbat "feasts upon the blood of both people and Pokémon and does not stop until it is full", and Golbat is 1.6m tall and weighs 55 kilograms (5 feet, 3 inches, and 121 pounds). In caves and at night, they can be found everywhere.
* Despite its cute appearance, Vileplume is carnivorous. It uses toxic and hyper-allergenic pollen to paralyze its victims, then ''eats them.'' Its ''Omega Ruby'' Pokédex entry also warns the reader not to approach beautiful flowers in the jungle in case they're actually Vileplume, suggesting that humans might not be off its menu either!
* Parasect, once a cute little Paras that becomes consumed and controlled by a fungus. The Pokédex entry says that in Parasect, the mushroom has grown so large that it literally sucks the nutrients from Paras' body to the point that it's stunted Paras' growth permanently. In other words, Paras is a larval stage insect, and Parasect is one as well. Only the mushroom has grown, making the timid Paras into a very aggressive, dead-eyed Parasect. This is based on the real-life Cordyceps fungus, which actually does this to certain bugs. The Pokédex entry from Crystal is particularly creepy.
--> '''Pokédex:''' When nothing's left to extract from the bug, the mushrooms on its back leave spores on the bug's egg.
* Primeape. Pretty much every Pokédex entry mentions its Creator/JoePesci -like tendencies. As in, [[HairTriggerTemper it can be pissed off by pretty much anything]].
** ''Sun and Moon'' adds an even darker layer to this. Apparently, Primeape is mad its entire life, and at times it can get so mad ''it dies''. And its death is the ''only way'' it will ever be freed from its anger.
* [[http://www.serebii.net/pokedex-rs/060.shtml Poliwag's cute spiral]] is, in fact, its [[{{Squick}} internal organs]], which can be seen though its skin (much like actual tadpoles). However, when evolving, the swirl changes direction.
* Kadabra and Alakazam are said to have incredible intelligence and psychic abilities (more so with Alakazam) like telekinesis: nothing could stop them from doing whatever they want.
--> ''"It happened one morning — a boy with extrasensory powers awoke in bed transformed into Kadabra."''
** On the topic of Kadabra, the Dark Kadabra card from the Team Rocket expansion asserts "some people say that Kadabra [[note]]mistakenly pluralized there as Kadabra''s'' [[/note]] are responsible for many of the mysterious events reported in the news."
** According to the old ''Red/Blue'' Pokédex entries, Alakazam's IQ is said to be 5,000 (compared to Stephen Hawking's 200-ish), and in ''Yellow'', it states that Alakazam can memorize anything.
** Alakazam is the embodiment of SquishyWizard. In fact, it's Emerald Pokédex entry confirms that it moves exclusively through telekinetic power because ''its muscles have completely atrophied''.
* [[http://bulbapedia.bulbagarden.net/wiki/Machoke_(Pokémon) Machoke's arms]]. "The skin has stretched apart because it can barely contain its huge muscles". Whether those lines are exposed muscles, veins, or stretch marks is never explained, and yet, Machoke somehow manages to smile about it. [[RatedMForManly Manliness]] alone fails to justify it.
** Machamp in general is also creepy. He grows extra arms out of nowhere, and his evolution before has no sign of 2 extra arms coming in from the back of his very spine.
* According to Weepinbell's Pokédex entries, it: a) is full of acid, b) catches prey by dousing it with a poisonous powder, then acid, c) has razor-sharp leaves, which it uses to slice up prey, and d) apprently ''leaves nothing remaining''. Oh, and ''it's a metre tall''.
* Victreebel is implied to be a man-eating plant: one of the Pokédexes mentions that "any and all explorers who have found Victreebel's secret society in the jungle never come back". Suddenly, James's RunningGag of being eaten by his Victreebel in the anime doesn't sound that funny, isn't it? Also, its hunting method is... disturbing. Taken from its ''Soul Silver'' entry: "This horrifying plant Pokémon attracts prey with aromatic honey, then melts them in its mouth." Not to mention it's based off of a real plant that hunts with this exact same method.
* Tentacool and Tentacruel are based on jellyfish. Jellyfish have tentacles lined with millions of tiny stinging structures designed to inject venom that, depending on the species, can cause incredible pain or death in humans (also mentioned in its Pokédex description). What makes this worse is Tentacool's status as GoddamnedBats in the water areas seen in the games.
* Doduo and Dodrio seem okay at first glance — Doduo is a cute little ostrich-like bird with two heads, and Dodrio, its evolved form, as a more angry looking bird with three heads. But how does it get the third head? According to the Pokedex, one of its two heads ''[[BodyHorror splits in two!]]''
* Grimer and Muk leak "horribly germ-infested fluid". A single drop of Muk's fluid can turn a pool stagnant and rancid. Touching causes a fever and its footsteps leave behind poisoned ground that nothing will grow on for three years. Grimer, while less powerful, is more dangerous indirectly, as it leaks more fluid than Muk, which may eventually become more Grimers. Grimer's germ-infested fluid can kill off all flora (including weeds) and make the land unfit for future plant life, touching it can either cause a horrible flu or fatally poison the victim. Basically, the "facts" imply a rampaging Muk is the Poké-verse equivalent to Chernobyl.
* Gastly. This adorably goofy-looking ghost head is cute, but also over four feet tall. And since it's made of gas, it can "sneak into any place it desires", according to several Pokédex entries, and can "envelop an opponent of any size and cause suffocation" as well.
** Haunter, in the manga, had a tendency to use its Dream Eater attack to steal people's souls. Haunter's Pokédex entries in the games imply it's an EldritchAbomination slowly killing whoever it wants to kill.
** Gengar, who appears at every full moon and scares people by pretending to be their shadow. Gen VII amplified its creepiness with its ''Moon'' Pokédex entry saying that it outright wants to kill humans. The reason? It wants one [[IJustWantToHaveFriends as a traveling companion]] because ''[[WasOnceAMan it was once human itself]]'', which seems to confirm that the Gastly line are literally the ghosts of humans instead of just ghost-like monsters. Its ''Sun'' and ''Ultra Moon'' entries, on the other hand, are pretty much pure ParanoiaFuel.
-->'''Sun:''' "Should you feel yourself attacked by a sudden chill, it is evidence of an approaching Gengar. [[YouAreAlreadyDead There is no escaping it. Give up.]]"
-->'''Ultra Moon:''' "Even your home isn't safe. Gengar will lurk in whatever dark corner of a room it can find and wait for its chance to catch its prey."
** There's also [[https://archives.bulbagarden.net/media/upload/d/d0/Gengar_concept_art.png this]] lovely piece of concept art created for ''Red and Green''. Sweet dreams, ''you'll need them''.
* Hypno, a Child's Dream-Eating Pokémon. It leads children away by hypnotizing them and they're never seen again. [[MemeticMolester The child abduction/molestation undertones are rampant]] (even the anime did an episode about it; it was toned down, of course, but that doesn't make it any better). There [[http://i99.photobucket.com/albums/l302/Chris_Lv255/hypno062608.png is an official shirt that plays on this, featuring a photorealistic Hypno leading away silhouettes of actual children]]. And a [[https://www.youtube.com/watch?v=FT_ZpHgiIKo song]], courtesy of {{Creepypasta}}.
** Just to make your day worse, have you ever heard of Literature/TheErlKing [[note]]The elf-king or alder-king, depending on how far back your etymology goes[[/note]]? It's a poem by Goethe that depicts a father racing through the forest to get his sick child home; as they ride, the child relates how he's being tormented by the elf-king, which only he can see, and his father attempts to convince him he's only imagining things. When he gets home, however, the child dies nonetheless. To supplement this: the one time you ever fight a Hypno in the wild by way of story-event? It's the one ''preying on Lostelle in the Berry Forest''.
** The very creepy Dark Hypno card. As if the art wasn't creepy enough, the character's description notes that Hypno "sometimes appears near less-traveled roads and schools at dusk."
* Learning that Cubone's headgear is the skull of its dead mother is illogical [[GameplayAndStorySegregation (and proven false by in-game Cubone breeding)]], but nevertheless a very disturbing implication.
* Hitmonlee: A Karate King with mutated, short arms, no mouth or nose, just eyes that stare, and wicked toes that can rip flesh to shreds.
* [[JapaneseBeetleBrothers Pinsir]] apparently likes to grip its prey in his enormous pincers until it is torn in half. Said pincers are strong enough to shatter thick logs.
* Gyarados is infamous [[InUniverse in-game]] for knocking down cities when berserk — that is, always. It also has the Intimidate ability, that has the in-game effect of scaring other Pokémon as well. It can be found in tons of bodies of water.
** Related to that, the Dark Gyarados card from the TCG [[https://cdn.bulbagarden.net/upload/a/ac/DarkGyaradosTeamRocket25.jpg depicts]] the character making a very creepy SlasherSmile, alongside the description that "normally found only in the deep ocean, it has recently been seen in shallow waters as well.""
* Kabutops' ''Soul Silver'' Pokédex entry managed to make it outright horrifying. To clarify, [[http://cdn.bulbagarden.net/upload/2/29/141Kabutops.png Kabutops]] is a vampiric 4-foot tall bipedal horseshoe crab with scythes for arms.
--> '''Pokédex:''' "With sharp claws, this ferocious, ancient Pokémon rips apart prey and sucks their body fluids."
* Mewtwo. He's essentially a genetically mutated feline created for the sole purpose of being the strongest Pokémon to ever exist, and given the state of his old home, [[GoneHorriblyRight he lived up to that purpose]]. While all Mewtwo wants is to be left alone in peace, making him angry is still never a good idea.
** ''Anime/PokemonTheFirstMovie'' shows him using horrendously powerful telekinesis to all but murder everyone around him.
--> ''[[ForScience "We dreamed of creating the world's strongest Pokémon...]] [[GoneHorriblyRight and we succeeded."]]''
** The games still have the implications, even if they don't outright say it like the movies do. Seeing the burnt out Pokémon Mansion and reading the journals of Mewtwo's birth (in which the scientist says they couldn't curb its viciousness) is enough to be creepy. Even worse — said scientist is implied to be Dr. Fuji, as seen in pictures in the Pokémon Lab and Blaine's Gym. Dr. Fuji, meanwhile, is implied to be [[spoiler:''Mr.'' Fuji. Yes, that sweet old man in Lavender Town who cares for orphaned Pokémon? It's very possible that once upon a time, ''he performed horrible DNA experiments to create Mewtwo'']]. And the TruerToTheText ''Anime/PokemonOrigins'' ''confirms'' all that. This is perhaps even worse for him than in the regular animé, since unlike there, [[MyGodWhatHaveIDone he lives with the knowledge of what he's created]].
** The Pokédex entries are none too reassuring. Putting them all together yields the picture that Mewtwo has been subjected to horrors [[BeingTorturedMakesYouEvil and became violent as a result]]:
--> '''Red, Blue, Leaf Green and X''': ''It was created by a scientist after years of horrific gene splicing and DNA engineering experiments.''
--> '''Emerald''': ''A Pokémon that was created by genetic manipulation. However, even though the scientific power of humans made its body, they failed to give it a warm heart.''
--> '''Gold and its remake''': ''Because its battle abilities were raised to the ultimate level, [[BloodKnight it thinks only of defeating its foes]].''
** According to a journal entry in the Pokemon Mansion, Mewtwo's creation occurred when a Mew "gave birth" to a Mewtwo during the cloning experiments (which is actually pretty close to [[ShownTheirWork how real cloning works]]). Ask yourself: Was Mewtwo BornAsAnAdult? Could that tiny little Mew [[DeathByChildbirth survive]] [[ChestBurster giving birth to it?]]
** [[http://www.suruga-ya.jp/database/pics/game/978006477.jpg This promotional photo]] for ''Anime/PokemonTheFirstMovie''. Notable in that it depicts Mewtwo with his mouth open (and Pikachu [[OffModel with no mouth]]), despite the fact that he never does so in the actual movie. Which makes the image all the creepier.
[[/folder]]

[[folder:Second Generation Pokémon (#152-#251)]]
* Xatu is a clairvoyant Psychic/Flying Pokémon that the R/S Pokédex describes as silent and unmoving because "shocked by the [[TheEndOfTheWorldAsWeKnowIt terrible things it sees in the future]]". In other words, Xatu is a Pokémon that spends most of its life paralyzed in fear from having visions of a {{bad future}}.
* Unown are a HiveMind of EldritchAbomination [[RealityWarper Reality Warpers]] shaped like Alphabet characters (plus Question and Exclamation marks).
* Gligar looks like an UglyCute cross between a scorpion and a bat, but the Pokédex states it "swoops in silently, latches onto your face, and injects you full of poison". Basically, it's a flying facehugger Pokémon.
* Houndoom is basically a {{Hellhound}}, with a little skull pendant and a call that the ancients once imagined to be the call of Death itself. And to make matters worse, if left untreated, their fire attacks ''[[{{Hellfire}} will never stop hurting]]'' if they hit you.
* Tyranitar is strong enough to make entire mountains crumble: after one goes on a rampage, "maps have to be redrawn to account for the damage".
* In Lugia's backstory, it was once worshipped as a god, until it lost control of its power, causing a storm that burned down the tower on which it was perched and killed three Pokémon inside.
[[/folder]]

[[folder:Third Generation Pokémon (#252-#386)]]
* Regarding both of Wurmple's families:
** Beautifly is a three-foot tall swallowtail butterfly whose multiple Pokédex entries say to be savage, and has few qualms about stabbing things with its proboscis and — like Gorebyss from further down — draining all their fluids.
** Cascoon's Pokédex entries state: "Encased within its tough cocoon, it endures attacks. It never forgets the appearance of its foes.", and in Platinum, "It never forgets any attack it endured while in the cocoon. After evolution, [[BestServedCold it seeks payback]]".
** Dustox, Cascoon's three-foot-eleven and Psybeam-firing evolved form, is a moth, and as such, it's only active at night, hunting people down while they sleep.
* Shedinja looks like a cicada skin, but, according to legend, will steal the souls of those looking into its back. Too bad it's seen from the back when it's one belonging to the player.
* Sableye. According to the ''Ruby'' Pokédex, they're thought to steal the spirits of people when their eyes glow in the dark. Their eyes are made of crystals. However, Sableye's eyes turned into gemstones because they ''eat'' gemstones. [[EyeScream Sadly, doing the math is not for the best here.]]
* Carvanha and Sharpedo: the former can tear through boat hulls and attack in swarms while the latter can destroy a supertanker with its sharp teeth. Now imagine coming face to face with them.
* Cacturne. It's a four-foot-tall-desert-crawling-cactus-turned-scarecrow that apparently stalks travellers (not Pokémon, not people, just "travellers") until they can no longer move, then it drains them dry. It's also subtly implied that this bit is preceded by a NoHoldsBarredBeatdown, so don't expect it to be quick or painless.
* Banette, while creepy enough in appearance (a maliciously grinning, red-eyed, ghost-creature with a zipper for a mouth), are explained in the in-game Pokédex as being possessed dolls seeking revenge on the children that threw them away.
* Dusclops is a cyclops shell with a giant glowing red eye; a shell as in, "it is a black hole on the inside", that can [[MindRape brainwash people]] just by waving its hands around. Duskull have always been creepy to some, despite the "But it's so cute!" found in much of the fandom; nevermind the Pokémon's very GrimReaper-esque features.
* Glalie freezes its victim, not unlike its cousin Froslass, but instead of being displayed like a trophy of some sort, the poor creature is ''eaten''. And to top it off, some of Glalie's entries state that it does such in "a leisurely fashion", possibly implying that either Glalie does this even when it isn't feeling particularly peckish, it doesn't experience hunger at all and just does this for kicks and giggles, or simply takes pleasure in its prey's pain regardless of the circumstances.
* Gorebyss: despite its beautiful looks, "it consumes its prey by sucking out the victim's body fluids". Or to quote Gorebyss's Pokédex entry from ''Emerald'', "Its light pink body color turns vivid when it finishes feeding." Its name is a portmanteau of the words "gore" and "abyss".
* Beldum, Metang, and Metagross are bizarre psycho-magnetic lifeforms. Metang and Metagross are also carnivores. Metagross in particular pins its prey beneath its titanic bulk and chews it apart with the mouth on its underside, which [[WebComic/WhiteDarkLife one Web RP]] [[https://comments.deviantart.com/1/416122897/3391377717 played for all the terror it's worth.]]
[[/folder]]

[[folder:Fourth Generation Pokémon (#387-#493)]]
* Combee are [[RidiculouslyCuteCritter really cute]], but being swarmed by a bunch of them would be frightening, which is what [[GodSaveUsFromTheQueen Vespiquen]] forces them to do. The Combee fly out of the honeycomb at the bottom of Vespiquen's skirt-like abdomen, which is exactly why it's shown lifting up its abdomen in its [[http://bulbapedia.bulbagarden.net/wiki/File:416Vespiquen.png official artwork]].
* Drifloon, a cutesy balloon Pokémon, [[http://debureturns.deviantart.com/art/Drifloon-106464127 apparently]] tries to drag people to the underworld... but is so weak that it fails, and instead ends up getting dragged around like a balloon. Its ''[[VideoGame/PokemonSunAndMoon Sun]]'' Dex entry indicates that it usually does this to ''children''. It eventually evolves into the larger Drifblim which is far more successful at carrying its prey to the afterlife.
* Spiritomb. It's a Ghost/Dark-type that was sealed away for 500 years as punishment for misdeeds, made from 108 souls. Additionally, Ghost/Dark types were the only combination that's not weak to any attack until the Fairy-type was introduced.
* What happens to two of the three "members" of Magneton when they evolve into Magnezone? They appear to be partially absorbed by the middle one.
* Yanmega, Yanma's Gen. IV evolution, is one of the largest Bug-types, and is based on an actual prehistoric giant dragonfly, Meganeura. It's over six feet long, can dislodge trees when taking off, is capable of lifting a grown human off the ground, can shred its enemies' internal organs from the shockwaves created by its wings, and is known for "biting apart foes midflight". Its appearance is scary by itself as well.
* Porygon-Z. It's a glitched version of [=Porygon2=] evolved using a mysterious disc that was not approved by Silph Co., as a jarring [[TakeThat metaphor for]] [[DigitalPiracyIsEvil software piracy]]: "Porygon-Z can sometimes be seen shaking rapidly for a short time. Whether this is intentional or a glitch is unknown.".
* Dusknoir, Dusclops's Gen IV evolution, is a huge cycloptic ghost with no legs, weird markings, and a rather haunting body, with a reputation of dragging people to the spirit world. The markings on its chest are actually a second mouth.
** It's a rather minor thing, but when you look at its ''X/Y'' sprite, its one eye is positioned in such a way that whatever direction you're looking at it from, it will always look like it's staring directly at you.
** On the plus side, it is also said to guide lost spirits home. Furthermore, in its first anime appearance, it actually ''protected'' Ash and co. from being dragged into the ghost world.
* Froslass, Glalie's evolution counterpart, is based on the yuki-onna, a type of ghostly Yōkai in Japanese folklore that appears during snowstorms and takes the form of a beautiful young woman without feet coming into being when a regular, foot-having young woman freezes to death in the mountains during frigid weather. Depending on the disposition of the ghost, which varies from story to story, it will either guide you to safety or get you hopelessly lost so that you suffer the same fate as she did. Because of this, there's the implication that Froslass is not above having sex with her victims before said actions (or it would, if this wasn't a family-friendly video game). And then there's her Pokédex entry...
--> ''"It freezes prey by blowing its -58 degree F breath. It is said to then secretly display its prey."''
* Giratina was banished to [[{{Hell}} another dimension]] for its extremely violent nature by [[{{God}} Arceus.]] During its time in that dimension, its presence reformed the dimension into the [[MirrorUniverse Distortion/Reverse World.]] In its home world, Giratina "silently gazed upon the old world" through [[ParanoiaFuel reflective objects, such as mirrors and still pools of water.]] Until recently, it can be seen appearing in an ancient cemetery, said cemetery being the entrance to his home dimension. So there you have it, a violent, 22'08" tall SatanicArchetype can appear anytime into the real world when it's not grudgingly watching you from its [[EldritchLocation home dimension.]]
** There's also its overworld sprite in Turnback Cave, maybe even moreso than in the Distortion World, because it's just ''there'' and it can be walked around, or specifically, [[JumpScare appear very suddenly from the fog as you approach it.]] If it equated to actual size, and considering proportions to the player, Giratina is about ''six times'' taller than the player and just looks like some sort of EldritchAbomination [[DraconicAbomination centipede/dragon/ghost... thing]]. It doesn't help how its cry sounds like a [[VocalDissonance high-pitched]] roar that borders on a ''scream''.
* Darkrai. The Pokémon that locks a small child in a perpetual nightmare until players find a [=MacGuffin=]. Its in-game ability is acting as literal Nightmare Fuel. However, it's said Darkrai doesn't do it on purpose or out of malice; it's a defense mechanism [[PowerIncontinence that it can't control]].
** To capture Darkrai, players must go into the previously locked Harbor Inn, where a 'hotel manager' says that he has been waiting for them, only to force them into a bed afterwards; the player character falls asleep, where (s)he's transported to Newmoon Island. He or she will have to defeat or capture Darkrai to escape. When waking up, the man is nowhere to be seen, and out of the inn, a sailor will say to you that "you were asleep for a long time", and mention that no one's lived in that inn for 50 years.
* Behold [[https://cdn.bulbagarden.net/upload/f/fc/493Arceus.png Arceus]]. Doesn't look too scary, right? Just a weird-looking Kirin horse-thingy Pokémon, right? Nope. For one thing, its signature move "Judgement" is capable of destroying entire cities and taking out weaker Pokémon with ease. Not only that, but its "Multitype" ability allows it to become any of the 18 elemental types of Pokémon available (meaning it can also learn a wide variety of moves). Oh, but it gets better. You see, Arceus isn't just any run of the mill Legendary. It just happens to be the Pokéverse's version of God. Luckily for us, [[FanNickname "God Pony"]] prefers to nap and not interfere with the Pokéverse directly. That is, [[Anime/PokemonArceusAndTheJewelOfLife unless you piss it off; then it will go so far as to destroy the entire world in its rage.]]
** Taking an Arceus to the Ruins of Alph in ''[=HeartGold/SoulSilver=]'' results in the most [[https://www.youtube.com/watch?v=dAxqSFRTmDc out-of-place, trippy cutscene ever;]] afterwards, Cynthia points out that "this is what happens every time an egg is created". As in, what always happens at the Day Care. According to WordOfGod, the images you see are actually Arceus recreating the universe from scratch just to give that egg.
[[/folder]]

[[folder:Fifth Generation Pokémon (#494-#649)]]
* Musharna, with pink smoke protruding from its head, who seems to be perpetually sleeping: this has the unfortunate effect of making it look as though it's suffered a grievous head injury.
* The Timburr line is pretty much 60% veins. Its muscular veins extend across it, which is pretty disturbing when you take a good look at it.
* Seismitoad essentially looks like a Politoed, only blue, with [[RedEyesTakeWarning rather apathetic red eyes]], and with a bunch of orbs around its skin: one of its available abilities, Poison Touch, causes anything it touches to be poisoned. Oh, and it's said to spray acid from the orbs on its head. It doesn't help that [[BigBad Ghetsis]] has one.
* Scolipede is an eight-foot-tall (not long, tall) centipede (beating out Yanmega's 6 feet) that "clasps its prey with the claws on its neck until it stops moving." Then, as if that wasn't enough, poisons them. And in case ''that'' didn't do the trick, it learns Steamroller, which essentially flattens the opponent just like the construction machine of the same name.
* [[NeverSmileAtACrocodile Krookodile's]] entries describe it as being able to "...expand the focus of its eyes, [[BeingWatched enabling it to see objects in the far distance]]..." Plus, "[[SuperPersistentPredator They never allow prey to escape]]". Bear in mind, entries also mention how this relentless predator that can effortlessly swim through sand has jaws capable of ''effortlessly'' crushing an entire automobile.
* Yamask's ''Black'' Pokédex entry says that the mask on its sprite is actually its former human face, and the Pokémon weeps over memories of being alive. It was apparently born from the spirit of someone buried in an ancient grave.
* Cofagrigus, Yamask's evolution, is a sarcophagus with a malicious grin on its face and ghostly hands peeking out of the inside of the coffin. Its ability, Mummy, gives the same ability to anyone hitting it: in other words, ZombieApocalypse. According to its Pokédex entry, it pretends to be a fancy coffin so it can punish grave robbers. Its entry in ''Sword'' also states that, in contrast to Yamask weeping over its past life, Cofagrigus has completely forgotten that it was once human. Oh yeah, and Ghetsis has one.
* Archeops may be [[{{Adorkable}} endearingly pitiful]], but its ''Black'' Pokédex entry shows that it's a clear case of NotSoHarmless: "They are [[ItCanThink intelligent]] and [[ZergRush will cooperate to catch prey]]. From the ground, they use a running start to take flight." And according to other Pokédex entries, it can [[SuperSpeed run 25 miles per hour]]. Oh, and the ''Moon'' Pokédex entry for it states that "when one Archeops had the prey cornered, another would swoop on it". That's right: Archeops are basically the Pokémon equivalent to the ''Velociraptors'' from ''Franchise/JurassicPark''... but unlike those raptors, Archeops can ''fly''...
* Gothorita, the Pokémon that is known far and wide in Unova for hypnotizing people. Sometimes those people are never seen again. Its Dream World Ability is [[YouWillNotEvadeMe Shadow Tag]] and its pre-evolved form is known for obsessively staring at people. The final evolution in the line, Gothitelle, manages to be creepy in a different, [[TearJerker heartbreaking]] way, as it's perfectly capable of determining someone's lifespan through the stars. The ''B2&W2'' entry specifically notes that it starts crying once it discovers how long its Trainer has. The ''Shield'' entry states that a criminal disappeared (and was never seen again) after a Gothitelle showed him his fate.
* Frillish paralyze prey with poison, then drag them down to their lairs, five miles below the surface.
* Jellicent's (Frillish's evolved form) ''Black'' Pokédex is highly disturbing: "The fate of the ships and crew that wander into Jellicent's habitat: all sunken, all lost, all vanished." The ''White'' Pokédex mentions that "life energy" is its favorite food. In ''Black 2 and White 2'', the Pokédex states that it has an undersea castle made from the remnants of the ships that it attacked. This might be a bit problematic for the Unova region, given that Jellicent can be found readily in most bodies of seawater. No wonder they're so big on trains.
* Eelektross is an enormous lamprey that is also a living dynamo. It hunts by slipping out of the ocean, grabbing its prey, shocking them, and chowing down. And [[RunningGag Ghetsis also has one]].
* Elgyem, the alien Pokémon. It and its evolved form, Beheeyem, can completely rewrite a person's memories, and the fact that they're aliens and have seemingly attracted little attention from the scientific community means that they probably do this whenever someone sees them. Almost like the Pokémon world equivalent of [[Series/DoctorWho The Silence]].
* The Litwick family line is infamous for not only stealing, ''but burning'' any souls it catches:
** Litwick is a cute little Fire/Ghost candle, but the Pokédex says "It burns brighter when it absorbs a human soul", and that "It tricks people into thinking it's a helpful guiding light before doing so".
** Lampent, Litwick's evolved form, "wanders the streets actively looking for the souls of the dead", as well as "appearing when you're on your deathbed and severing your immortal soul from your body". It hangs around hospitals waiting for people to pass on.
* Pawniard and Bisharp. Carnivorous Pokémon that'll hunt their prey down, at which point the Pawniards will imobilize it by clinging to it sinking the blades their bodies are made of into the prey's body, followed by Bisharp making the final blow. And guess what? [[OverlyLongGag Ghetsis has one!]]
* Heatmor's dex entry. It grabs a Durant, blows fire on it until the heat melts its exoskeleton into metallic goo, then delightfully cooks its internal organs and devours them one by one. Of course, given Durant is a bug- and steel-type, it's only logical that its ArchEnemy is a fire-type anteater, akin to the Zangoose/Seviper rivalry and Zangoose's Immunity.
* Durant: Ants that are thirty centimetres tall (roughly 11 inches), with steel covered skin that would make it nigh-impossible to stomp on them.
* The Dark/Dragon line of Deino-Zweilous-Hydreigon starts with one head, grows a second one as Zweilous, and gains a third one as Hydreigon, while two of them become hands. The creepiness comes from the dex entries: it says that Zweilous's heads fight over food, which means that both of them are intelligent. Hydreigon is also one of the few Pokémon who appears to be explicitly malevolent and destructive in nature. It's even called the Brutal Pokémon. According to its dex entry, "The heads on its arms lack brains." One of the heads loses its ''[[DeathOfPersonality brain.]]'' Alternatively, its brains merge and it's driven insane, accounting for its "brutal" nature. Even better (or worse), wild ones will SWOOP AT YOU FROM OUT OF NOWHERE on the Kalos Victory Road. And to make things even more worse, [[RunningGag it's another creepy Pokémon that Ghetsis has in his possession]]. [[SignatureMon It's the cornerstone of his team.]]
* While Volcarona is mentioned as having been deified as a bringer of light, it still is an [[BigCreepyCrawlies enormous]] (as in, 5 feet tall and weighing a ''hundred pounds'') moth that spreads embers wherever it goes; one flap of its wings is enough to set vast swaths of land ablaze. And it's just one of many.
* As far as openly malevolent Pokémon go, there are Tornadus and Thundurus, the storm djinns. These are pogeys who, for no apparent reason whatsoever, flew around causing massive, land-devastating storms at random. Thankfully, they have a mediator in Landorus.
* Kyurem. Apparently, it would actually hunt and consume humans and Pokémon alike. Worse still, it's a Legendary. It gets worse in ''VideoGame/PokemonBlack2AndWhite2''. You know its badass new formes of Black/White Kyurem? They're caused by Kyurem [[AndIMustScream turning Reshiram/Zekrom back into the Light/Dark Stone]] and [[TheAssimilator using them as mere powerups]] [[FusionDance for itself]]. And if that isn't enough, it turns out that the fusion isn't even a complete one, since N outright says [[AndIMustScream he can hear his dragon trying to speak to him]]. Plus, this makes one wonder if absorbing both Zekrom and Reshiram would actually allow it to be complete again (''thankfully'', we never find this out). This is particularly scary if you watch the fusion cutscene, and makes you shed a tear or two for N's poor dragon. ''And'' it makes you [[YouBastard feel guilty afterwards]] if you capture N's dragon and Kyurem and want to recreate Kyurem's new forme.
* Genesect was feared as the ultimate hunter 300 million years ago, long before humans, when there were mostly small lizards, amphibians, and bugs. A four-foot tall bipedal insect would be an overpowered monstrosity by comparison, and it could have easily wiped out all life on the planet. And there wasn't just one of them, it was an entire species. It's a good thing it went extinct... and then Team Plasma revived one, gave it cybernetic enhancements, and put a giant cannon on it, making it even ''more'' powerful. Oh, and they did this to make the strongest Pokémon ever, because [[MythologyGag that guy's attempt over at Cinnabar went so well for him, didn't it?]]
[[/folder]]

[[folder:Sixth Generation Pokémon (#650-#721)]]
* Espurr's ThousandYardStare is pretty creepy. Then you find out ''why'' it's staring like that — it can barely stop its psychic power from leaking out, and is concentrating with all its might to not unleash it accidentally. But it's just a basic-stage Pokémon, how bad can it be? The blast radius of an Espurr that loses control is ''three hundred feet of complete and total destruction''. Oh, and if you've never played with your Espurr in Pokémon-Amie before, you can totally pet its ears — which are what's holding the psychic power back, so a newly-caught Espurr apparently doesn't mind accidentally killing you. Brrr.
* Honedge, a possessed sword. Looks like an EquippableAlly, right? Wrong! In fact, it is an ArtifactOfDeath that punishes those who try to invoke it; those who dare to wield Honedge like a sword will find its tassel wrapped around them and sucking their life force dry. It's a good thing that Aegislash, its final evo, is more benevolent. Except not in ''X'', in which it's a mind-control tool for ruthless leaders.
** Many Pokémon have spots they don't like to be touched in ''Pokémon Amie''. Honedge is fine with its hilt being rubbed, but if you touch its scarf-arm, it either: bristles furiously and makes as if to unsheath itself if it loves you, or takes pleasure in sucking you dry if it's a stranger to you. Doublade is much more easygoing.
** In its dex entry from ''Sword'', it is said that Honedge's soul once belonged to a person who was killed with the sword that is now Honedge's body.
** According to the dex entry for its blade form in ''Shield'', a king that owned an Aegislash was eventually killed by it stealing his life force, eventually causing his kingdom to collapse.
* Inkay and Malamar in ''X and Y''. To boot it off for a start, they are the first Pokémon to be typed [[DarkIsEvil Dark]]/[[PsychicPowers Psychic]]. They are {{Cthulhumanoid}}s who have the power to [[MindManipulation control others]]. And it's implied that people have tried to use them in the past for their own nefarious schemes. In the anime, one — a wild one uncontrolled by humans at that — wants to [[ApocalypseHow destroy the entire world with a virus that renders it fit only for Inkay and Malamar to live on.]] [[Franchise/{{Splatoon}} Sound familiar?]]
* Dragalge. The ''Y'' and ''Alpha Sapphire'' entries state: "Tales are told of ships that wander into seas where Dragalge live, never to return," as if Dragalge territory is the Pokémon equivalent of the Bermuda Triangle.
** The ''Ultra Sun'' dex entry describes it as "vicious". It also says it [[OddFriendship gets along very well with Dhelmise]]. Which doesn't sound too bad, until you think about it: Dhelmise is a seaweed ghost that wraps itself around a ship's anchor to use as a body. ''Where do all those anchors come from?''
* Tyrunt and Tyrantrum are Pokémon based off of T-Rex. And they both have violent tempers. Tyrunt may be cute, but it throws tantrums when it does not get its way. And Tyrantrum's bite is so powerful that it lived as a king in its time because nobody could fight him!
** Those well-versed in paleontology will know that that the strength of Tyrantrum's bite is accurate to the real world ''Tyrannosaurus rex'', which holds the record for the strongest bite force of any known land animal.
* Trevanant is based on a kodama, a type of spirit that inhabits trees. Not only does it have menacing looks, but it can trap people who harm the forest so that they can never leave.
** In the anime, one traps and kidnaps Ash. While it was only trying to get Ash to rescue a Bonsly and Sudowoodo trapped in a cage by Team Rocket, just imagine what it would do to someone who damages the forest.
** Its pre-evolution, Phantump, is scary for a completely different reason: the dex entry states that they are the ''[[WasOnceAMan ghosts of children]]'' who got lost in the forest.
*** The anime shows that Phantump have the ability to imitate the voices of children. Combined with the aforementioned entry, this has horrifying implications — children who hear a Phantump's voice might become curious and wander into the forest, more than likely get lost and die, and become Phantump themselves.
* Gourgeist, the evolution of Pumpkaboo. Its ''Y'' dex entry states [[{{Sadist}} it sings joyfully while watching its prey suffer]]. In its ''Sword'' and ''Shield'' dex entries, it tries to trick people to send them to the afterlife, and their choices of prey are based on their size. The small ones pose as children to prey on adults, the large ones are known to [[WouldHurtAChild prey on children by pretending to be adults]], while the supersized ones aren't picky at all about the ages of their prey.
* The version mascot of ''Pokémon Y'', Yveltal. Dusknoir might be the Pokémon world's version of the GrimReaper, but this bird of prey is based around ''death itself.'' It's RedAndBlackAndEvilAllOver and is about '''twenty feet tall.''' And its {{signature move}} is [[DeathFromAbove Oblivion]] [[LifeDrain Wing]] [[note]]named "Death Wing" in Japan[[/note]]. It has plot relevance in ''Pokémon Y''.
** Its method of immortality. When it dies, it turns into a cocoon and kills everything in the area by absorbing its life force, like some kind of twisted caricature of a phoenix.
** The worst thing about this harbinger of destruction is that, counter-intuitively, ''its existence and life are necessary for life on Kalos to continue.'' It's like a Keter-class Wiki/{{SCP|Foundation}} that you have to preserve at all costs lest it causes even more casualties.
* While Xerneas may seem like the benevolent counterpart to Yveltal, after hearing about the extent of its life-giving abilities, you'll be ''thankful'' that Yveltal's around to help balance it out. Xerneas is capable of sharing everlasting life. As in ''immortality.'' While this may seem like a good thing, keep in mind that ''Pokémon X & Y'' have two characters who became immortal due to the use of the Ultimate Weapon, those being AZ and the Eternal Floette, and up until their reunion, they were both miserable because of it. The former of which [[WhoWantsToLiveForever has been wandering the region for centuries, unable to die]], and the latter [[ImmortalityHurts has already experienced the pain of dying before]]. The worst part? In ''Pokémon X'', as a last-ditch attempt to punish the player for defeating him and crushing his schemes, Lysandre attempts to use the remaining energy in Ultimate Weapon (which had been sapping Xerneas's power) to curse both you and your friends (as well as himself) with immortality. This results in the Team Flare base [[CollapsingLair collapsing in on itself]], trapping Lysander inside — the PlayerCharacter and their friends get out of there before it's too late, but [[AndIMustScream if they hadn't...]]
* And rounding out the Kalos Legendary Trio is Zygarde, who is single-handedly the most bizarre and otherworldly Pokémon in existence. It is a Pokémon [[TheWormThatWalks composed of numerous Cells and Cores]] that [[TookALevelInBadass take on stronger and more disturbing forms the more cells it has.]] At 10% of its power, it resembles an alien doberman dog. In its default 50% form, it resembles a monstrous serpentine creature. And then there's its Complete Form, which is a {{Kaiju}}-sized HumanoidAbomination with a BellyMouth, a tail, and four cape-like wings. However, according to the Pokédex, it's actually a GentleGiant that is quite content to be left alone... [[BerserkButton until you mess with the environment.]] [[GaiasVengeance That's when things get really ugly.]]
** Despite its Complete Form being its most powerful form, [[GodzillaThreshold Zygarde thankfully only uses this form when its back is to the wall and there's no other choice.]] Episode 43 of the ''XY'' anime finally showcases just how powerful it is in this form and... Well, let's just say [[spoiler:[[BigBad Lysandre]] [[KilledOffForReal learned the hard way]]]] that it's '''''never''''' a good idea to mess with a force of nature.
* Hoopa's a cute, mischievous little thief who's not scary at all. At least, that's Hoopa Confined — Hoopa Unbound is a barbaric-looking monster with [[MultiArmedAndDangerous multiple arms]], tusks, and an EvilLaugh. Oh, and [[{{Kaiju}} it's as large as Gyarados is long]]. It's not implausible that before it became Confined, Hoopa didn't bother with being sneaky and just took whatever it wanted by force, with few things able to stop it. And because it's a RealityWarper, it could appear out of nowhere and disappear just as suddenly. It's a blessing that someone or something managed to seal away Hoopa's power.
* A walking volcano is a terrifying thought, right? Well, if Heatran wasn't enough for you, then meet Volcanion, a [[PerpetualFrowner nigh-perpetually pissed off]] creature with enough power to blow up an entire mountain. And if its personality in [[Anime/PokemonVolcanionAndTheMechanicalMarvel its movie]] is reflective of its personality in the games, it doesn't like humans one bit. Thankfully, it keeps to itself within mountains away from mankind, but it's not hard to imagine [[KillItWithFire what it'd do to a human settlement]] if it was pissed off with one.
[[/folder]]

[[folder:Seventh Generation Pokémon (#722-#809)]]
* Bewear may be cute at first sight, but it's TheDreaded due to its unfortunate combination of being a CuddleBug that DoesNotKnowHisOwnStrength. Trainers are specifically warned against raising one, as many a Trainer has been killed by Bewear [[AndCallHimGeorge giving them a hug]] and ''crushing their spine''.
* Sandygast and Palossand are a haunted sand pile and a haunted sand castle. Pretty goofy and silly, right? But these things are soul-drainers, and brainwash unsuspecting humans into adding more sand to them.
** And that's not even getting into how they reproduce. [[TheVirus All the souls of Pokémon (and presumably people) they drain become Sandygasts themselves.]]
** If you want an extra layer of horror, the dex entry for ''Moon'' says that inside Palossand, you can find the ''dried-up bones of its past victims''.
* Komala is born asleep and dies asleep. It never wakes up, and only moves when its dreams make it toss and turn. Forget antimatter dragons and death gods, this little guy is the Pokémon incarnation of nihilism.
* Mimikyu is a little BedsheetGhost dressed in a Pikachu costume because it [[IJustWantToHaveFriends wants to have friends]]. But what does it look like under the costume? [[YouCannotGraspTheTrueForm We get one clue]]: a scholar who looked under it '''died of shock'''. [[note]]However, said scholar could have died of a heart attack because the thing was so [[RidiculouslyCuteCritter freakin' cute beneath the sheet]] and people and/or Mimikyu as a species thought he died of shock, given it's a Ghost type and all…[[/note]]
** Two things can be deduced about Mimikyu based on attacks it can learn: Shadow Claw, Hone Claws, Slash, etc. indicate that it has claws. And it can also learn Leech Life, an attack where the Pokémon bites the enemy to ''suck its blood''. So it's safe to assume that it has fangs…
* Female Salandit can produce pheromones that can hypnotize humans and Pokémon alike. Then it becomes Salazzle, who travels everywhere with a "reverse harem" of hypnotized male Salandit. It's basically the Pokémon equivalent of a ''[[HornyDevils Succubus]]''.
* Wishiwashi. Tiny little fish that, according to Pokédex entries, are cowards, weaklings, and [[BreadEggsMilkSquick tasty]]. However, they have the Ability Schooling, which makes them gather in great numbers until they form a gigantic, scary-looking fish with multiple GlowingEyesOfDoom. According to the Pokédex entry, even ''[[HorrifyingTheHorror Gyarados]]'' are scared of school form Wishiwashi.
* Type: Null looks a tiny bit unsettling already thanks to its dark color palette, but it's also a synthetic MixAndMatchCritter that's even more of a Frankenstein's monster of a Pokémon than Mewtwo ever was. That, combined with its name, makes it feel like it's just ''barely'' considered a Pokémon at all. It's also said to have been created to rival [[OlympusMons the power of Pokémon spoken of in myths]] to complete a "certain mission". Lord knows what that may be.
** Oh, and the kicker? It's on [[GangBangers Team Skull]]'s side. [[NotSoHarmlessVillain They don't seem so goofy and harmless with a powerful synthetic hellhound with them, do they?]]
*** That's subverted when you find that Type: Null's owner, Gladion, is hardly considered a true member of Team Skull. However, [[spoiler:when you go to the Aether Foundation to rescue Lillie, you can find out many things concerning Type: Null (then called Type: Full), including the fact that the artificial Pokémon went berserk when scientists of the Aether Foundation tried to force the RKS System into it, causing it to go berserk and the project to be deemed a failure. Since then, only three were made, with Gladion stealing one and running from the foundation's president (his mother, Lusamine), with the other two remaining in cryogenic sleep. Gladion eventually gives one of the two remaining Type: Null to the player character, but the third remains locked away...]]
* Cosmog might be an adorable little creature that also serves as a TokenGoodTeammate for [[spoiler:its fellow Ultra Beasts]], but when exposed to sufficient stress, ''it can inadvertently create wormholes'' to Ultra Space. Never mind the fact that [[spoiler:Lusamine]] exploits this ability in the game itself, but also that at any time, a Cosmog from [[spoiler:Ultra Space]] can randomly create a portal and unleash these horrors upon the world.
* Tapu Lele. It's an [[RidiculouslyCuteCritter adorable little pink, feminine, butterfly creature]] with a curious nature that stopped an entire war just by soothing the warriors with its rejuvenating scales. [[TemptingFate Not scary at all, right?]] Well, for starters, despite its appearance, the Pokédex states that it is "guilelessly cruel". Its scales, while very useful for healing, can be very dangerous if taken in large amounts, ''[[ItAmusedMe and it scatters them everywhere]] [[JerkassGods on a whim]]''. And that part where it stopped a war by healing the warriors?? That's just one side of the story. [[spoiler:This thing has destructive capabilities rivaling even ''Yveltal''. While the English website for ''Sun and Moon'' simply states that it stopped the war by healing the soldiers, the Japanese website reveals a horrifying truth: contrary to popular belief, it actually ended the war by ''[[KillEmAll killing all the soldiers]]'' with its dangerous scales.]]
* Ultra Beasts. There's something to be said about them when, in a world that considers living Poké Balls, super-enhanced clones, ancient robots, and even the creator of the universe to be Pokémon species, these creatures are at first treated as something else entirely. They're also very powerful, a threat to humans and Pokémon, and at first referred to [[YouAreNumberSix only by numbers]].
** The most horrifying thing about them isn't the fact that they're horrendously strong, but by how just ''existing'', they are a WalkingDisasterArea. [[spoiler:The previously-mentioned purpose of Type: Null turns out to be fighting them off, if not outright killing them.]] Two Ultra Beasts stand out in terms of the havoc they wreak: Celesteela, which is basically a ''huge bamboo rocket mecha'' who causes firestorms ''just by moving normally'' due to the exhaust from its rockets, and Guzzlord, ''who never stops eating and once ate an entire ocean'' ([[spoiler:and is heavily implied to have eaten a woman who was originally part of Looker's beast-stopping team]]), and can convert anything it ate so perfectly, '''there is no waste.''' It's even more terrifying to think just what kind of places would require anything to evolve into things like these.
*** Nothing natural, that's for certain. The horror of Guzzlord [[spoiler:or more specifically, where they originate from,]] is expanded upon in ''VideoGame/PokemonUltraSunAndUltraMoon'', when you visit [[spoiler:their home dimension, the Ultra Ruin, which is itself implied to be an alternate universe Hau'oli City. From gathering information, it's heavily implied that a power plant suffered a disaster of apocalyptic proportions, destroying the world. Whether Guzzlord arose from this disaster, was specifically created to deal with the fallout, or somehow already existed is unknown, but while the place was so mutilated the inhabitants seemingly had to be evacuated to other ''planets'', the Ultra Beasts were left behind to devour the remains. Even worse for the planet, the same person notes the numbers of Guzzlord have been decreasing as of late. In other words, they've destroyed the world so thoroughly that there's nothing left for [[ExtremeOmnivore even them]] to eat, let alone for any hope for any other type of life]].
* And after the Ultra Beasts is Necrozma, an entirely pitch-black prism creature that's [[NonStandardCharacterDesign bizarre-looking even next to the Ultra Beasts]]. Aside from having a name derived from ''nekro'' (Greek for "death"), the Pokédex lets us know that it's always shooting lasers... and [[AxCrazy has an extremely vicious disposition]], much like Mewtwo and much ''unlike'' almost every other Pokémon. Necrozma doesn't seem so likely to be a nice Pokémon, does it?
** Its ''Sun'' Dex entry tells how it came from another world in ancient times. Sounds just like Solgaleo and Lunala, doesn't it? Which raises the question; just ''when'' did it come, and what did it do when it arrived given the aforementioned vicious nature? Is it related to Cosmog? [[spoiler:''VideoGame/PokemonUltraSunAndUltraMoon'' answers both of those questions, and it isn't pretty.]]
* The Ultra Beasts. They are horrifying {{Eldritch Abomination}}s that hardly look like Pokémon however they are actually Pokémon from another dimension, and almost all of them are seemingly capable of immense destruction, directly or otherwise. Everything about them just defies [[NonStandardCharacterDesign typical Pokémon design]] and even some logic. They're incomprehensible, and everything about them just seems... ''wrong'', at least compared to actual Pokémon.
** UB-01 Symbiont (also known as Nihilego) is a jellyfish-like creature that possesses human like movements resembling that of a child, but it might not have a will of its own. Possibly meaning that it's being controlled by something else. In fact, the opposite is true, as it's a parasitic creature. When it finds a fitting host, it injects them with neurotoxins that boost their natural abilities and make them act wild in hopes of protecting the Ultra Beast. This fate befell Lusamine.
** UB-02 Absorption (also known as Buzzwole). RealLife mosquitoes are already the deadliest animals around due to their ability to spread deadly diseases such as the [[https://en.wikipedia.org/wiki/Zika_virus Zika virus]]. Now imagine facing one that is almost '''eight feet tall,''' and has SuperStrength to boot. Its concept art has it attacking and draining energy from a hapless Pangoro.
** UB-02 Beauty (also known as Pheromosa), emits a pheromone that can cause anyone nearby to be awestruck by its beauty, one that science thought was ''impossible.'' Although it's one of the least aggressive of the Ultra Beasts, [[HatesBeingTouched it also hates touching anything]] as though it ''hates the very concept and wrongness of this world to it.'' It's also able to hit speeds of 120 MPH ''instantly''. [[Manga/TerraforMars Basically it's a cuter version of a Terraformer.]]
** UB-03 Lighting (also known as Xurkitree) is perhaps the most alien-looking of the Beasts. While a bunch of cables stuck together in the vague shape of a humanoid tree is not too outlandish an idea for a Pokémon in and of itself, the fact that UB-03 has nothing that would even remotely resemble a face makes it look extremely off in comparison with most Pokémon. Not helping matters either is how it uses some of the wires to stand up, and the others as... arms, but the lack of joints make it unclear whether they're supposed to be meant to be limbs, tentacles, or both.
** UB-04 Blaster (also known as Celesteela) might have a [[http://i.imgur.com/UncyWDh.png cute face up close]], but it's a ''thirty-foot tall'' [[OrganicTechnology living spacecraft]] that has been stated to ''burn down entire forests''. Imagine seeing something like ''that'' fly over you in real life.
** UB-04 Blade (also known as Kartana) might be [[BadassAdorable super small]] and much more passive compared to other Ultra Beasts, but even when it's not attacking, its indescribably sharp body is extremely dangerous to the touch. And when it's angry? It's been known to destroy ''entire steel buildings'' with a single stroke of its blade.
** UB-05 Gluttony (also known as Guzzlord). It's a huge, monstrous creature with a cavernous mouth that looks like it could be the FinalBoss in any other RPG. It has, what are apparently two tongues coming from the mouth that act as its arms, and they're basically two large pincers. If you look a little closely, you can even see a second hole inside its mouth that looks like some sort of spiky gate, and it also has a spiked tongue. It has been reported to eat ''entire mountains'', swallow ''whole buildings'', and even swallow ''entire oceans''. It is also implied that it uses everything it eats as energy; it's basically a living ''black hole'', and everything it eats ceases to exist. And the worst part? Looker mentions that 10 years ago, his team targeted an unnamed Ultra Beast, which was not known to be an Ultra Beast at the time. A member of their team, a Faller, was set up as bait, while Officer Nanu and Looker had to kill it. However, Looker felt sorry for the beast and hesitated to kill it; this delay ended up causing the third member of the team (who was apparently very inexperienced) to be "[[DeadlyEuphemism done in]]" by the UB. Considering what the Ultra Beasts can do to someone, this is horrific enough, but there's more. If you bring Guzzlord to Wicke, she mentions that the International Police previously targeted it on a top-secret mission. That's right, an innocent woman was ''[[FamilyUnfriendlyDeath eaten]]'' by this monstrosity, and was converted to energy, leaving behind no sign of her prior existence. Sweet dreams... Of course it is also likely she was simply killed by accident by Guzzlord, as its explained that the Ultra Beasts go after Fallers in the belief that they can use them to get back to their home dimension, but the result was horrible regardless of Guzzlord's motivations.
* The Island Guardians' signature Z-move: Guardian of Alola. The Pokémon first summons a giant, yellow, headless, humanoid figure, who crawls out of the ground like some sort of horror movie. The Pokémon then takes the place of the figure's head, controlling it like a HumongousMecha, and brings a giant fist upon the opposing Pokémon.
** The Poison-type Z-move is rather unsettling, too. It's unusually quiet for a Z-move, since it's about acid rain, but the affected Pokémon also slowly sinks into a puddle of acid, in silence, in a way that looks like the target is actually ''melting''. The abrupt return to the battle makes this all the more unsettling.
* The Pokédex entries as usual, though it's a bit worse here. In previous generations, the Pokédex, while still gory, would simply say that the Pokémon kills "its prey" in a certain way, leaving exactly what prey the Pokémon eats open to interpretation. Here? The Pokédex ''outright states'' exactly what Pokémon species the Pokémon prefers to eat, so that you can hear tales of adorable creatures such as Corsola, Cubone, and Alolan Vulpix being brutally slaughtered in terrifying ways. ''[[RidiculouslyCuteCritter Emolga]]'' even has a dex entry that states that it grills berries (nothing new among the electric rodents) and ''Bug Pokémon'' to make a meal out of them.
* Even ignoring the hunter/prey relationship entries, a large number of the Pokédex entries are significantly darker than normal mentioning not just how they kill other Pokémon, but even some humans as well. The otherwise adorable Bewear's entry states that many trainers have been killed from their Bewear hugging them and accidentally snapping their spines. Mimikyu's states that anyone who has seen its true form has died from shock. Wishiwashi's entry states that, even though it's mostly to keep predators from trying to eat them, their School Form is so dangerous that even Gyarados would flee for their lives at the sight of it. Drifloon's entry states that if its body is ever pierced, its very soul is destroyed in a painful explosion.
** Wishiwashi's is actually invoked in-story for the Water Trial. As the captain asks you to investigate the strange figures causing an uproar in the lake leading up to her trial, the player faces two very weak base form Wishiwashi. When they approach the final area the captain reveals that she was playing dumb earlier and knew full well what was causing the splashing. Oh and she notes that you just pissed off the entire school of Wishiwashi in the area by attacking those two on her orders earlier. When you reach the last one your Lapras shudders in fear as the shadow beneath the both of you grows larger and larger until a gargantuan form dives out of the water threatening to swallow you.
* Gengar's Pokédex entry in ''Sun'':
-->''Should you feel yourself attacked by a sudden chill, it is evidence of an approaching Gengar. There is no escaping it. Give up.''
* Similar to the above, many Mega Evolutions' Pokédex entries are horrifying, either implying, or outright stating, that you've turned your beloved Pokémon into a beast that knows nothing but the thrill of the fight, suffers from injurious levels of PowerIncontinence can attack their own Trainer and/or even suffers because of the forced transformation. It's almost as if those entries warn you about your selfishness in using your Pokémon as battle tools, even though Mega Evolutions require a strong bond between Pokémon and trainer.
** Mega Garchomp's description reveals that [[BodyHorror its arms and wings melt to form its scythe arms]], and as its beloved wings are gone, it goes berserk on everything and can destroy even the ground.
** Mega Salamence's dex entry states that any enemy that touches its wings will get [[{{Gorn}} sliced in half]]. Heck, Mega Salamence has been dubbed as the ''"blood-soaked crescent"'' due to its brutality.
** There's also Mega Lucario whose fighting style is summed up as heartless. Remember that to get Lucario, you need Riolu to have [[ThePowerOfFriendship max happiness.]] This behavior has been demonstrated with Korrina's Lucario in the Pokémon anime, like when it brutally attacks Pikachu before it gets stopped.
** The energy Mega Aerodactyl receives makes it more vicious supposedly due to the excess energy causing it pain. This is only an idea though, and its other pokedex entry simply says it is theorized that Mega Aerodactyl is what Aerodactyl looked like in prehistoric times.
** Gyarados's dex entry was already terrifying, Mega Gyarados has only its destructive instinct left.
** Mega Glalie's dex entry explains that its huge mouth hangs open the way it does because it ''broke its jaw''! Mega evolution actually dislocated its jawbone so it hangs uselessly, its Moon dex entry even saying it will try to eat prey but can only freeze them uselessly in its mouth since it can no longer move its jaw to swallow them.
** On a less dramatic note, Mega Kangaskhan's Sun entry is "Mega Kangaskhan's strength derives from the mother's happiness about her child's growth. Watching it grow up keeps her spirits high." The ''Moon'' entry is "Thanks to Mega Evolution, its child grows. But as the child is good only at fighting and nothing else, its mother feels uneasy about its future."
** Subverted with Mega Alakazam's ''Sun'' entry: "As a result of Mega Evolution, its power has been entirely converted into psychic energy, and it has lost all strength in its muscles." This would be more dramatic if Alakazam's Omega Ruby entry didn't outright state that it already relied on psychic energy to support its always-growing brain.
* Toxapex's description is this for Corsola: "Toxapex crawls along the ocean floor on its 12 legs. It leaves a trail of Corsola bits scattered in its wake." It's also brought up in-game that Toxapex eat so many Corsola, that Corsola are endangered in Alola.
** Also, the only way to find Toxapex's pre-evolution, Mareanie, in the wild is for Corsola to call for help. Just to re-iterate, a Pokémon based on coral calls for help from a Pokémon based on a crown-of-thorns starfish, the natural enemy of coral. Imagine how terrifying that must be from the perspective of the Corsola; it calls for help from other Corsola, only to attract a predator of Corsola.
*** From an outsider's perspective, the player can act like a real bastard in trying to catch a Mareanie. Since this is the only way to catch Mareanie, many players will intentionally keep a Corsola near death, taking down any friend coming to its aid, until its natural predator come to "help" and kill it if the player doesn't first.
*** It is worth noting that only Toxapex is explicitly stated to devour entire Corsola, unlike the pre-evolution, who is only stated to eat the branches atop Corsola's body. Which can grow back. And scares the Corsola more than it actually hurts the Pokémon. So, in truth, while looking to catch a Corsola, all you're really doing is causing the poor creature to faint from fear, but thankfully, you're not killing it.
*** It doesn't help noting that Toxapex (and Mareanie) can even ''breed'' with Corsola!
* Sandygast is incredibly creepy, despite its silly and cute appearance. Its description states that children that come into contact with it become {{Brainwashed}} into adding more and more sand to it. It can be very unsettling considering how many times we've all done that at the beach. What the ''fuck'', Game Freak?!
** Kind of makes the two kids in Ruby and Sapphire who want to use ALL the sand on the beach just outside of Slateport to make "a giant sandcastle" a little terrifying in hindsight, doesn't it?
** Sandygast's evolved form Palossand is even more unsettling. To elaborate, this goofy looking Sand Castle Pokémon is actually one of the creepiest things to ever emerge from Creator/GameFreak. Palossand [[LifeDrain drains the life from other Pokémon]], then those Pokémon's grudges inhabit piles of sand to turn into more Sandygast. That means that the way it breeds is by ''killing other Pokémon,'' and Palossand's Pokedex entry states that it's full of the bones of Pokémon it's eaten. To top it off, in a promotional image (pictured in [[NightmareFuel/PokemonSunAndMoon Sun and Moon's page]]) Palossand is shown devouring a Pikachu. That's right, this thing is not just a haunted sandcastle, but a '''carnivorous''' haunted sandcastle that ''actively hunts its prey down.'' '''Sweet dreams.'''
** Hell, even its ''cries'' sound incredibly disturbing, even by Ghost-type Pokémon standards!
* The gas that Salandit makes smells sweet, but is also toxic. Its females apparently have [[{{Pheromones}} gas]] that [[CharmPerson hypnotizes male people and Pokémon]].
* If you're an arachnophobe, Araquanid can be this. It's the biggest spider Pokémon to date. Say hello to a 5'11 (1.8m) tall GiantSpider with rather unsettling eyes! Lessened a bit, however, as its ''Moon'' Pokédex entry states it's actually a caring Pokémon and will protect the weak in its water bubble. [[DoubleSubversion However]], its ''Sun'' Pokédex entry says that it headbutts Pokémon with the water bubble and the smaller ones get sucked in and drown... Look at it from a Pokémon's perspective; [[ParanoiaFuel they'd have no idea whether an Araquanid is coming to help it, or drown it.]]
* Morelull might be an adorable fairy mushroom, but the same cannot be said about its evolution Shiinotic, one of the [[TheFairFolk most explicitly malevolent Fairy-type Pokémon]] in the series. Not only does it have hyphae resembling CreepyLongFingers and a blank, staring face coupled with a rather disturbing SlasherSmile which also happens to look eerily cute, it also makes people lose their way in the woods via its luminescence, and uses its lights to put its victims to sleep, then use said hyphae to drain their strength.
* A subtle example is Magearna and its signature ability, Soul-Heart. Soul-Heart boosts Magearna's special attack whenever a Pokémon faints in its vicinity, whether ally or enemy. What makes this eerie is that lorewise, Magearna's Soul-Heart consists of collected life energy from other Pokémon. Apparently, the process is '''not finished''', and whenever a Pokémon dies or is close to death in Magearna's vicinity, [[LifeDrinker its Soul-Heart automatically starts stealing their waning life energy to power Magearna]]. This is made arguably even more terrifying by the fact that this is not even something Magearna does of its own bidding, instead, "it will try as hard as it can to save injured Pokémon, [[TheEmpath due to its ability to feel others' pain]]." It can be surmised that the process of draining the life energy of suffering Pokémon is painful to Magearna, but it is incapable of controlling it.
* '''''SYLVEON'''''. Its Dex entries, compared to ''X'' and ''Y'', are utterly ''horrifying''.
--> ''Its ribbonlike feelers give off an aura that weakens hostility in its prey, causing them to let down their guard. Then it attacks.''
* Mimikyu's new Z-Move, [[CuteAndPsycho called "Let's Snuggle Forever"]], is as [[BlackComedy creepy as it is hilarious]]. It involves Mimikyu sneaking around, causing the opponent to become distressed, before leaping out and lunging at the opponent, eyes flashing menacingly. Then it completely engulfs the opponent in its costume and ''beats them up underneath'', before spitting them back out. Oh, and you might think it's a Ghost-type Z-move, right? Wrong. ''It's [[LightIsNotGood Fairy]]-[[TheFairFolk type]]''.
* Necrozma changes form by becoming a mind-controlling parasite that assimilates other Pokemon, and overpowers and assimilates Nebby when the newly-evolved Solgaleo/Lunala tries to defend you from it.
* In a similar manner to [[VideoGame/FinalFantasyVII Supernova]], Ultra Necrozma's Z-Move takes almost 50 seconds from start to finish, and is effectively a FantasticNuke dropped on the opponent. Its name was localized as ''[[NamesToRunAwayFromReallyFast Light that Burns the Sky,]]'' and perhaps befittingly, the Pokémon that uses it was made one of ''the'' most powerful Pokémon in the franchise.
** To show how powerful it is, after the player character assumes the pose for the Z-Move, a large surge of power erupts and actually staggers them. In comparison, the player character still maintains the pose for the execution of all other Z-Moves.
** And during the move itself, Necrozma charges up by absorbing light from the surroundings, reducing the background scenery into pitch black until the attack hits. It shows that Necrozma is indeed capable of completely depriving any locale of light.
* Pokédex entries in the original ''Sun and Moon'' already became notable for their general increase in morbidity, but a lot of the entries in ''Ultra Sun and Ultra Moon'' are ''even worse'' than before. Of particular note are the entries for Mega Evolutions, which go out of their way to emphasize that you either caused your Pokémon to suffer excruciating pain or injuries due to forced transformation or that your beloved companion isn't there anymore because you brainwashed them into becoming what amounts to a barely-sentient weapon of mass destruction.
** Mega Gengar isn't your friend. No, seriously. If it feels like it, it can and will place a curse on you, or worse: '''kill you.'''
** Mega Gyarados not only completely loses its mind, but it's also in hellish torment because of the stress that comes with its new body shape. It can also split ships cleanly in half as it zooms out of the water at Mach speeds.
** Mega Scizor's power will eventually cause it to completely melt down.
** Mega Houndoom can burn its opponents into nothing but ashes with its new power. It's also in severe pain due to its incredibly high internal body temperature almost literally ''burning the poor thing alive''.
** You see those extensions on Mega Tyranitar's back? That ''is'' its back, ''completely split open''. It also runs entirely on destructive impulses and can get so frenzied that it can no longer understand its trainer's commands.
** Mega Sableye's chest gem has grown so big that it's ripped open a hole in its skin. ''OUCH.''
*** Which isn't really all that new, given that it is part of Sableye's mega evolution animation.
** We finally have an explanation for why Mega Salamence becomes more brutal: it viewed its two wings as beautiful, and it's pissed because of what they have turned into.
** Mega Metagross will do ''anything'' to win. If it thinks it's about to lose, it resorts to TakingYouWithMe, digging its claws into the opponent and never letting go as it initiates a self-destruct sequence.
** Mega Lucario brutally beats its opponents without any sort of mercy, [[Anime/PokemonTheSeriesXY as Ash's Pikachu can attest.]] Makes you want to think twice before teaching your Lucario [[NoHoldsBarredBeatdown Close Combat]], doesn't it?
** Mega Garchomp is re-emphasized on its wings melting into scythes.
** Mega Absol has an intimidating aura that is said to cause fainthearted people to ''die'' [[BrownNote just by glancing at it.]] [[BadPowersGoodPeople This]] may explain why [[DarkIsNotEvil Absol]] is a ReluctantWarrior who really doesn't like Mega Evolution in the first place.
* The sight of the ''enormous'' Totem Araquanid arising from the depths and looming over you can be more than a little disconcerting. Going through the trial, you'd expect the Totem Pokémon to be a Wishiwashi, like in ''Sun'' and ''Moon''. And right as the school forms, another shadow, larger than the school of Wishiwashi looms behind it. The water breaks, and Araquanid rises, looking ready to impale you with its leg.
* Why is Necrozma so angry? Because its light was completely ''drained'' by the ancestors of the Ultra Recon Squad in ancient times and literally broke its body. Meaning for the rest of its existence, it has to either absorb light and destroy worlds in the process, or live a hellish existence in pain and in an incomplete state. And even if the protagonist is able to catch it and quell its rage with the Z-crystals, that ''still'' doesn't heal its injury, meaning it will never truly be whole.
* [[HeadlessHorseman Blacephalon]] is Nightmare Fuel taken ''up to eleven'' [[MonsterClown for anyone with a fear of clowns]].
** Blacephalon gets even weirder when you use Pokémon Refresh to boost its affection towards you. Most Pokémon get a sad look in their eyes if you pat them a certain way, but being humanoid, Blacephalon shakes its head and makes evasive gestures with its hands. Alternatively, it clenches its hands and stomps its feet angrily in a way that just looks off.
** The Pokédex outright says that it attacks '''people'''. This thing does not feed on Pokémon, it is specifically adapted to hunt down humans. And with it looking like a clown, it's not too big of a stretch to think that it evolved its look and mannerisms to attract '''children'''. This monstrosity is ''absolutely'' the [[Literature/{{It}} Pennywise]] of the Pokémon world.
* In Ultra Space, we can see some Xurkitree in the background far away. The one we can catch is about 12 feet tall. It is ''tiny'' compared to [[{{Kaiju}} the others.]]
** The way the Xurkitree move is pretty unsettling as well. There's something so off about the way their long spindly limbs flail about...
* Zorua's ''Ultra Moon'' Pokédex entry states they sometimes switch places with ''children''. What happened to the children they're impersonating? And just to make the [[ParanoiaFuel paranoia factor]] even worse, recall that they're found at the ''Trainers' School''...
[[/folder]]

[[folder:Eighth Generation Pokémon (#810-#890)]]
* This region's fossil Pokémon are an unnerving case of literal MixAndMatchCritters, where each one is made of two different body parts of unknown extinct Pokémon, but as a result, they [[CameBackWrong came back horribly wrong]]. Their Pokédex entries even show this with the two -vish Pokémon both mention its difficulty breathing. Plus, Dracovish's head is attached to the tip of the dragon's tail instead of to its torso (so who knows how it's eating ''or'' breathing), and Arctovish's head was put on ''upside down'', making it hard to eat its prey. Meanwhile the two -zolt Pokémon show its lopsided figure with a big body and small head. While Dracozolt seems to be the least affected by this, Arctozolt is notably described as having difficulty walking around. If you look at the Pokémon up close, the poor thing is shivering. ''[[PunctuatedForEmphasis So. Damn. Much.]]'' It looks like its own body is malfunctioning and it's about to drop dead from a heart attack at any moment. It also appears to be suffering from some sort of infection (most likely a cold or the flu), as its nose is running profusely.
** It's even more horrifying when one considers that these Pokémon were ''knowingly created'' by Galarian scientists. Or, at least, by one rogue scientist. (Unlike previous games' fossil restorations, which are done in full labs by a team of experts, this one is done by a single person standing outside in a random field) This suggests one of two things. First, that they were [[KnowNothingKnowItAll incredibly stupid or incompetent]], and don't know how their mishmashes can even logically function as living beings. Or second, that they were [[MadScientist incredibly sadistic or unethical]] and ''did know'' that they would create Pokémon with disabilities and yet ''chose to do so anyway''. The latter is almost certainly the case if the [[https://en.wikipedia.org/wiki/Piltdown_Man Piltdown Man hoax]] was an inspiration. The fact the one who restores them, [[MeaningfulName Cara Liss]], acts... really off and looks disheveled, with hunched shoulders, dirt on her face and clothes, mismatched shoes, and a vacant expression, doesn't give much assurance it isn't both. From a lore perspective, it crosses over into VideoGameCrueltyPotential on the player's part if they are aware that these Pokémon suffer from such issues and still decide to ''create more of them''.
*** And then of course, it should be mentioned that for the ones you get to use - provided you collect the fossils and take them to the scientist - that guilt sits firmly ''[[PlayerPunch on you]]'' for giving permission to the revival of these creatures into a life of pain or difficulty.
* Gigantamax versions of Pokémon combine the growing big of Dynamax with the transformation horror of Mega Evolutions, and up the ablities of the users to sometimes terrifying levels.
** Gigantamax Gengar. While it transforms, Gengar seemingly disappears... but once the transformation is done, its arms pop out of the ground and then the rest of Gengar emerges as well, revealing its rather terrifying Gigantamax form - ''a massive, gaping maw''. Its Pokédex entries are also completely horrifying. Its Sword entry says that its mouth apparently leads directly to the afterlife, while its Shield entry says that it tries to trap and lure its victims into its mouth. How does it do this? By ''imitating the voices of your loved ones''.
** Gigantamax Eevee's "Eeeee-vuuuuuhhhh" sounds plain ''demonic''.
** G-Max Hatterene amplifies the range of their emotion sensing into ''miles'' and they go on rampages at even the slightest bit of hostitlity, ''from thirty miles away,'' going on rampages shooting lighting from their tentacle like hair. There is a good reason it gained the title of '''Rampaging Goddess'''.
* Galarian Yamask and their evolution Runerigus are somehow even more horrifying then their Unovan forms. The painted slate the Yamask are carrying is actually possessing it and slowly draining their energy, and the method to evolve into Runerigus implies Yamask hasn't "evolved" so much as ''the slab has completely drained the Yamask to regain its true form.''
* Galarian Meowth looks less of a typical feline and more of a spiky ball of fur with sharp teeth and a crazed expression. And when it evolves, it doesn't become a Persian... it evolves into Perrserker, which looks like a bigger, menacing Meowth with a horned helmet made out of ''metallic hair fused to its face'' and has WolverineClaws that it can extend and form into a blade. It doesn't even look anything like a cat anymore!
** When Perrserker is provoked or about to attack, its pupils vanish, leaving only [[RedEyesTakeWarning empty, red eyes]].
* Galarian Corsola, and its evolution Cursola. Remember that happy, brightly-colored coral Pokémon from Gen 2? Well, its Galarian form is based [[SarcasmMode on the cheerful concept]] of coral bleaching, the death of coral that happens due to rising water temperatures normally brought on by climate change. Corsola has become/been reborn as a Ghost-type with a ghostly white body and [[RedEyesTakeWarning red eyes]], because apparently rapid climate change wiped out the original Galarian population. It's a shockingly dark and depressing twist on such an innocent Pokémon that's scary in a very different way from most Ghost-types, by taking the form of a ''very'' real and current problem in our world.
** Cursola itself has a rather horrifying design - rather than growing directly, Corsola's original shell body has ''burst open'', and rising from its remains is a towering ectoplasmic form with holes in the shape of a wailing ghostly face and branches shooting off of it. This ectoplasm contains its ''actual'' body, a small orb with a face that originally sat inside the shell, peeks out of what looks like a gaping mouth. According to the Pokédex, contact with said ectoplasm will freeze you stiff, and to top all of this off is [[https://youtu.be/WBbIdseXJLY?t=131 a cry that sounds like Corsola's except with screaming]].
* In the same vein as Corsola, the Pokédex entries for Koffing and Galarian Weezing imply that the latter had to adapt in order to survive the increasingly toxic air of the region. Bear in mind that toxic gas is what the Koffing line is ''made of.'' The pollution is getting so bad, [[BeyondTheImpossible literal poisonous gas has trouble surviving!]]
** Of course, the effect is greatly lessened when you remember that said adaption is similar to the adaption of Alolan Grimer and Muk, namely that Weezing essentially functions as an air filter. Still, for the pollution to be so high that the Pokémon's biology saw fit to change in order to fix the issue is... concerning.
* Galarian Darmanitan is rather disturbing as well. It's a living snowman, but it still retains its Fire typing in Zen Mode. But how does it stay solid like this? Answer: It doesn't. It apparently gets so angry that its body literally begins to disintegrate. Looks like it's in a similar boat to Primeape, who sometimes gets so angry it dies.
* Galarian Slowking. The Johto version has the Shellder biting the top of its head, its venom making it super smart so that the two are living in harmony. In Galar? The Shellder has taken complete control of Slowpoke, forcing it to do its bidding. The entire head is now covered and the eyes are that of Shellder itself.
** Galarian Slowking also apparently skilled at making deadly poisons and its signature move is the charmingly named ''Eerie Spell''.
[[/folder]]
----

* Hitmonlee: Karate King of the UncannyValley, with mutated, short arms, no mouth or nose, just eyes that stare, and wicked toes that can rip flesh to shreds.

** Blacephalon gets even weirder when you use Pokémon Refresh to boost its affection towards you. Most Pokémon get a sad look in their eyes if you pat them a certain way, but being humanoid, Blacephalon shakes its head and makes evasive gestures with its hands. Alternatively, it clenches its hands and stomps its feet angrily in a way that just looks [[UncannyValley off.]]

* Gengar's Pokedex entry in ''Sun'':

* Similar to the above, many Mega Evolutions' Pokédex entries are horrifying, either implying, or outright stating, that you've turned your beloved Pokémon into a beast that knows nothing but the thrill of the fight, suffers from injurious levels of PowerIncontinence can attack their own Trainer and/or even suffers because of the forced transformation. It's almost as if those entries warn you about your selfishness in using your Pok&eacutemon as battle tools, even though Mega Evolutions require a strong bond between Pok&eacutemon and trainer.

* Inkay and Malamar in ''X and Y''. To boot it off for a start, they are the first Pokémon to be typed [[DarkIsEvil Dark]]/[[PsychicPowers Psychic]]. They are {{Cthulhumanoid}}s who have the power to [[MindManipulation control others]]. And it's implied that people have tried to use them in the past for their own nefarious schemes. In the anime, one — a wild one uncontrolled by humans at that — wants to [[ApocalypseHow destroy the entire world with a virus that renders it fit only for Inkay and Malamar to live on.]] [[VideoGame/{{Splatoon}} Sound familiar?]]

** Sandygast's evolved form Palossand is even more unsettling. To elaborate, this goofy looking Sand Castle Pokémon is actually one of the creepiest things to ever emerge from Creator/GameFreak. Palossand [[LifeDrain drains the life from other Pokémon]], then those Pokémon's grudges inhabit piles of sand to turn into more Sandygast. That means that the way it breeds is by ''killing other Pokémon,'' and Palossand's Pokedex entry states that it's full of the bones of Pokémon it's eaten. To top it off, in a promotional image (pictured above) Palossand is shown devouring a Pikachu. That's right, this thing is not just a haunted sandcastle, but a '''carnivorous''' haunted sandcastle that ''actively hunts its prey down.'' '''Sweet dreams.'''