Basically, when a cute game surprises you by being really hard, that's Surprise Difficulty
; when a cute-seeming
work surprises you with its lingering sense of unease, that's Surprise Creepy: Getting Crap Past the Radar
which is just downright bizarre, creepy, or has Unfortunate Implications
, but which is made even worse by how you would never
expect to see something like that in a work like this. It's often, but not always, a blink-and-you-miss-it sort of thing, and can require Fridge Logic
to really notice. Like, is that what they were really
trying to imply? But... it's not
that kind of show. How could
that be what that was supposed to be?
Not that this is a bad thing
. Sometimes horror is that much more effective and that much more fun when you're not expecting it.
Kind of a combination of Mood Whiplash
and What Do You Mean, It's for Kids?
/What Do You Mean, It's Not for Kids?
. Often manifests itself in Vile Villain, Saccharine Show
. Often caused by lying covers
, people trusting trailers
, and thinking about things too hard
. Compare Crapsaccharine World
, which is (usually) more clearly intentional, and Art-Style Dissonance
. Strongly related to Backstory Horror
By the nature of this trope, entries below will be SPOILERS.
Even just seeing a work listed is a spoiler in and of itself.
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Anime And Manga
- Princess Tutu starts off looking like a sugary-sweet, very cute ballet-themed Magical Girl show in a very picturesque town that has Cat instructors, and a Penguin that plays piano - then the crows come, then let's not get into the Finale of Season One or all of Season Two
- If all you know about Higurashi is the cover, you will be very surprised by the beginning of the first episode, and troubled by the vaguely sinister opening credits, but the bulk of the episode will seem like a typical Slice of Life comedy featuring a boy who has recently moved to a cheerful small town and befriended four female classmates... but before the first episode is over, the boy has realized he's living in a Town with a Dark Secret, and everything starts spinning out of control, and by the end of the fourth episode, half of the main characters have died gruesomely, including the Decoy Protagonist, and you realize the beginning of the first episode showed you that this was going to happen. And then the fifth episode begins with one of the younger main characters stabbing herself to death with a huge knife for no apparent reason, and after the opening credits, it's back to light-hearted comedy.
- Revolutionary Girl Utena, which poses so convincingly as a bog-standard Magical Girl series that the first company to try translating it marketed it as such ... then changed their mind hurriedly at the start of the second season.
- Narutaru seems at first like a cute little story about a girl and her pet dragon-thingy. Then it starts going horribly wrong...
- This seems to be typical of Mohiro Kitoh's work. Bokurano is an initially charming Humongous Mecha show with child protagonists. All of those kids are going down, and you'd need to use factorials to calculate how many universes get completely destroyed over the course of the series. And Wings Of Vendemiaire is about charming little living puppets going through horrible, horrible things.
- Ah, Pokémon Special. It's supposedly the closest adaption in terms of spirit, so it's probably a kid-friendly story about a ten-year old who roams the countryside to be a Pokémon mast- holy shit, is that a rotting Psyduck zombie?! Oh, God. Are the Elite Four planning to commit genocide in order to preserve the world for Pokémon?! And who's that creepy masked guy?!
- Tenshi Ni Narumon: Painfully sweet, cutesy, silly and looks like it was made for some toy store line. By the end of the series, the darkness, creepiness and mindfuckiness will make many cringe. And there's a pretty explicit yaoi innuendo going on there too.
- Puella Magi Madoka Magica: A Ridiculously Cute Weasel Mascot or whatever offers to make a grant a young girl's wish and give her powers beyond imagination. Every episode after the third is a Wham Episode.
- Dai Mahou Touge (or Magical Witch Puni-chan) features a magical princess sent to a high school in the human world as part of her princess training. She has a cute talking animal side-kick, a magic wand, and the ability to animate vegetables into evil minions (or to jump into whatever she's cooking). This adorable little girl wrestles opponents with the intention of breaking bones, says "submission is a princess's way!", and her animal sidekick, who was forced to be her pet after she kicked the tar out of him, constantly wants to kill her. Within the magical kingdom not everything is so magical; for instance, an army of slaves is used to move trains. None of this is ever shocking to Puni, but her normal human companions are often either stunned or frightened.
- School Days starts out as a cute teenage love story about a guy trying to get a girl with help from his female friend. When he does finally get her, he does a bad thing, and things spiral out of control as the series gets much darker and depressing and loses all traces of its cheerfulness. This all culminates in the final episode with his girlfriend, having just murdered his female friend, snuggling his disembodied head.
- Momotaro's Divine Sea Warriors starts out as a cutesy film with adorable animals, but once the title character shows up it turns into disturbing war propaganda.
- The first Unico movie starts off with a bunch of cute baby unicorns, but ends with Unico impaling a demon and sending him straight to Hell.
- The My Little Pony: Friendship Is Magic fangame Story Of The Blanks starts out as a nice, interesting little game starring cute little Apple Bloom finding a town full of blank flank ponies in the Everfree Forest. Then you find a skeleton in the fire place. And that's just how the scary part STARTS.
- Super Filly Adventure is a fun little My Little Pony: Friendship Is Magic fangame that has you attend one of Pinkie Pie's parties and save Ponyville with your flank-kicking combat abilities. Even the "bad" ending where you become so obsessed with baking muffins that Ponyville burns down is far more silly than disturbing. Then you discover the secret "Blank Flank" ending, which is accessible only if you play the game at a very late hour...
- Cupcakes is going for this, but nearly everybody in the My Little Pony: Friendship Is Magic fandom already knows about the twist. It starts out innocently, with Pinkie Pie inviting Rainbow Dash over to bake cupcakes, but then Pinkie takes her to the basement to graphically slaughter her.
- The Pony POV Series chapter "Playtime" is mostly lighthearted, focusing on the Mane Cast talking with Princess Gaia as if she were simply Fluttershy and the foals that Ponyville has been turned into just playing around. Then Princess Gaia's facade shatters, revealing her true form, Nightmare Whisper.
- Marie D. Suesse And The Mystery New Pirate Age! starts off like a "Girl falls into One Piece" adventure, until the main character finds themselves alone on the Thousand Sunny with the crew mysteriously gone missing. Then weird things start happening, a disembodied voice starts singing, and the hostile Klabauterman shows up... Things only get darker and creepier from that point on. It's all the more unexpected because based on the first chapter and summary you would have thought the story was just a Mary Sue parody.
- Moonstuck, aside from the occasional appearance of Dark Woona, is a silly and fun romp across the moon with Woona making lots of friends and things that don't make sense. The final boss fight, and the lead up to it, is shockingly dark and depressing even without comparing it to the rest of the story, with one of the most terrifying portrayals of Discord that the fandom has ever produced.
Film - Animated
- The film version of Watership Down starts out with a fun and interesting myth about the creation of the world by Frith and how the rabbits and other animals came to be. Then we flash to the main plot and get a group of animated rabbits, and it all looks like an enjoyable kid's movie about cute little bunnies until suddenly Fiver mentions something about the field being covered with blood. It quickly goes downhill from there.
- The Brave Little Toaster. Right off the bat we have Air Conditioner raging himself to death, there's the Nightmare Sequence involving a Monster Clown, then near the end of the film, there's a musical number in which anthropomorphic cars are being crushed to death.
- Don Bluth films:
- Disney Animated Canon:
- Meet the Robinsons. The first 3/4s of the movie are full of colors, gleeful wackiness and literal bubbles. Then, just after what appears to be a daring rescue, the robot friend gets speared through the chest and dies, the main character's best friend/future son disintegrates into nothingness, the world is plummeted into despotic despair and slavery, and the main character's family, being controlled via electronic hats that cover their faces, starts trying to kill him by beating him off a very high fall. All in the space of about two minutes.
- Pinocchio is the story of a cute little puppet boy and his journey to become human... which leads to the Pleasure Island subplot, which involves other boys getting lured into a seeming happy-looking place where they can misbehave and do what they want, but then get turned into donkeys and shipped off to work themselves to death. We see a nightmare-inducing sequence where one boy screams and begs for help as he slowly and painfully transforms.
- Dumbo is a somewhat depressing story of a young elephant who is mocked for the size of his ears, but it's still presented in a cute and lighthearted fashion. Then Dumbo gets drunk and starts to hallucinate, resulting in twisted, bizarre visions of ghost-like apparitions straight from Hell.
- Movie adaptations of Roald Dahl's children's novels can reflect their source material in this manner depending on what's emphasized in the early going. While James and the Giant Peach and the 2005 version of Charlie and the Chocolate Factory telegraph the darker undertones of the stories early on, consider 1971's Willy Wonka and the Chocolate Factory: The sugary "The Candy Man" opening number and general down-to-earth aesthetic of the first half doesn't exactly prepare the audience for stuff like the boat ride... See also Matilda, with its freaky wide-angle closeups and uncannily cartoonish torture/violence.
- ParaNorman is mostly a Fantastic Comedy about hilariously ineffectual zombies and living characters who aren't any more competent, though the very realistic bullying Norman suffers stops it from being fully a comedy. Then the true nature of the "witch" is revealed, and suddenly everything in the film becomes a lot more horrifying.
- The dead from Corpse Bride are anything but scary or even creepy. They're lively, upbeat, and a hell of a lot more fun to be around than the so called living. Then they find out it was Lord Barkus who murdered Emily and suddenly careen rapidly into horror town, ending with Miss Plumm ominously saying "new arrival" as they literally drag him to hell.
- Rango starts out as a fairly light-hearted Western for kids, with only a few sinister villains to occasionally darken the skies. Then Rattlesnake Jake shows up, and introduces us to a new meaning of fear.
- The fantasy novel series Fablehaven. Despite its bright and cheerful kid-aimed covers, it gets smacked upside the head by our friend Cerebus remarkably quickly. Each book is darker than the last, but the covers remain cute and inviting.
- The Candy Shop War by the same author has an arguably more kid-friendly cover, but is just as dark.
- Olivia Kidney has a title protagonist who appears on the cover as an adorable, cartoony little girl. She talks to ghosts all the time, including her beloved dead brother. There's the ever-present implication that everything that's happening might just be a product of an extremely overactive imagination. Or maybe it's all real. They never really let you know for sure, and it's not clear which would actually be worse.
- Redwall starts out seeming like a sweet little Low Fantasy series about cute fuzzy animals in a pretty woodland setting. Then some pretty damn horrifying things happen to them. It says quite a bit about this children's series that it was the first work of literature to get its own Complete Monster page.
- Roald Dahl was one of the great masters at this in his stories/novels for both adults and kids — but especially the kids' stuff. Consider Charlie and the Chocolate Factory: The first third of the book is a light story about a mysterious candy factory and the mostly wacky, grotesquely bratty kids who get the chance to visit it...and the remaining two-thirds reveal it to be a setup for a morality play in which said brats meet a variety of dreadful fates — getting sucked into pipes, thrown down rubbish chutes, etc. And it's Played for Laughs, with the Wonka Factory effectively a positive portrayal of a Crapsaccharine World. A Black Comedy for kids was virtually unheard of in 1964, and the book was controversial for years afterward, with Moral Guardians appalled by its cavalier attitude towards children getting imperiled.
- When unhappy or unpleasant truths intrude on the relatively peaceful lives of characters in the Aunt Dimity cozy mystery series, they often do so in this way. Open a box expecting to see maybe an heirloom—find fully dressed human remains. Heave a sigh a relief that the "murder" turns out to have been an accident—well, that's jolly nice, but your hero has just had a flashback on a real murder he witnessed and is near catatonic. Similar mood dynamics occur when solutions are given and the culprit turns out to be obsessed and/or insane.
- There is an old nonfiction children's book called Model a Monster. The first three-quarters or so teach children how to create adorable balsa-wood and papier-mache models of prehistoric animals. Things very suddenly take a turn for the deeply strange in the last quarter...
- Harry Potter starts off as a whimsical children's series, then takes a very dark turn in book 4. The author even noted this idea by pointing out the book started with a double murder but is still called a children's story.
- Dr. Seuss wrote Thidwick the Big-Hearted Moose, which ends in Thidwick's unwanted guests being killed and taxidermized.
- Henrik Drescher's book Pat the Beastie ended with Paul and Judy being eaten by the titular Beastie.
Live Action TV
- In an episode of Gotham we meet Jerome. A poor kid who travels as part of a circus with his mom. When she's found dead, he’s very convincing in his grief. But as soon as Gordon confronts him with evidence that he murdered his mother, he chillingly transforms from grieving son to laughing maniac who explains he killed his mother because she was a nag. And he may or may not become The Joker).
and their development teams may well be the reigning champions of this trope. They have a family-friendly, even kiddy image, but quite a few of their games are clearly intended for brave
- Pippin: The songs, the poster, even the characters will try and convince you this is a musical comedy "coming of age" tale. It's not.
- Mr. Toad's Wild Ride at Disney Theme Parks (now only in California) is made of this. What's billed as a simple fairground-like kids ride ends with Mr. Toad being sentenced for his recklessness by a mean-looking judge, having an implied fateful run-in with a train, and taking riders with him to his fate in the depths of Hell. Fire and brimstone are all around, cartoon demons jeer at the riders, and the room gets a little bit hotter. All while jaunty music plays!
- The Disneyland Railroad is just a slow-moving transportation ride around the circumference of Disneyland Park with a few stations along the way—not something that would seem too dramatic. However, at least one part near New Orleans Square involves travelling through a dark tunnel with mysterious eyes poking out, and the stretch between Tomorrowland and Main Street features a Prehistoric world diorama (actually from the 1964-65 World's Fair) inspired by a scene of Fantasia. In it, a T. rex and Stegosaurus stand locked in vicious battle while other dinosaurs face imminent death at the hands of drought and disaster. Really, Disney parks can do this trope in their sleep.
- A lot of Myst has this. Special mention goes to the brothers' rooms in the first game, and Myst IV's Serenia - a lovely world of glowing butterflies, literal stone forests, and magic, memory storing lotuses. And then comes the Spirit Ceremony and the Big Bad's plan for Yeesha.
- In Psychonauts, Milla's brain seems to contain nothing but fun and parties. However, if you manage to find a slightly out-of-the-way area, you discover that she used to work at an Orphanage of Love... which was destroyed and all the orphans killed in a house fire and continue to haunt her nightmares, crying out things like, "Save us, Milla," and "Milla, why won't you help us?" Reportedly, the original plan was to have Milla's nightmares attack Raz, from time to time— this is where the Giant Space Flea from Nowhere mini-bosses in the Milkman Conspiracy stemmed from.
- Ecco The Dolphin - A game starring a cute dolphin who has lost his family to extremely hungry aliens. He must go back and forth through time, battling past sharks, jellyfish, enormous spiders, and trilobites, braving eerie music and disturbingly solemn, frightened fellow dolphins, to rescue them and the Earth. Later locales include a meat grinder scrolling level where you're continually molested by terrifying masses of chitin and blobs of acidic green goo, and slime tubes in the sky that cause you to plummet five miles into roadpizza if you mess up and fall out. The final game in the series has you swim inside the body of a giant alien and attack its beating heart. Rated E for Everyone!
- NiGHTS into Dreams... is a pretty, if slightly surreal game which involves prancing around dream worlds and battling weird monsters. Then you get to Wizeman. A colossal, looming shadow with no distinct face, a thundering voice, and six eyes, each one set into a separate, floating hand. His first direct interaction with the protagonists in the sequel is to suddenly appear in the hub world, tear apart the ground, and take out Invincible Hero NiGHTS by electrocuting them into unconsciousness and then dragging them with him into the Dark Sea.
- Aquaria follows a similar premise as Ecco, only this time the protagonist is a fish girl. She finds herself utterly alone and starts to explore the ruined civilizations, and eventually meets their crazy gods and the Big Bad who made them. And yes, just like in Ecco, there are Womb Levels in Aquaria.
- Eversion starts out as a brightly-colored relentlessly cheerful platformer and ends as a Cosmic Horror Story, with the player character either being or being eaten by an Eldritch Abomination. Although if you know who HP Lovecraft is, the opening screen serves as a warning about that, as the game starts off by quoting him.
- Irisu Syndrome!. On the surface: a Nintendo Hard Falling Blocks game. Then there's the game's plot, as well as the bad endings.
- Ai To Yuuki To Kashiwamochi, from the same creator as Irisu, is another puzzle game with a dark, dark secret.
- Kingdom Hearts. Having the Disney Label on it and trailers featuring tons and tons of our beloved characters from Disney Animated Canon made it seem like this game was intended for children ages 6 and up. Then the Final Fantasy elements show up and the OTHER feeling Disney is famous for.
- The game added its own Nightmare Fuel in form of the Heartless, creatures who, contrary to what their names imply, don't lack hearts; they ARE hearts corrupted by the darkness. These little monsters have one goal in mind: To corrupt all hearts that there are, and the hearts of the worlds they haunt are especially sought after. You know that the cheerful game those trailers announced isn't that cheerful when you see an innocent NPC being turned into one of those monsters as his face freezes in a fearful expression, and that's toward the beginning of the game.
- Kingdom Hearts: 358/2 Days starts as a melancholy but often heartwarming story of three friends who just happen to work for the bad guys. By the end, one of those friends has been revealed as a monstrous replica of Sora that is slowly eating the protagonist's essence just by existing. S/he attacks then you to force you to kill him/her. You know, for kids!
- "Miss World '96 Nude" is infamous as a horror game posing as a porn game. The gameplay consists of removing the obstructions that block your view of pictures of scantily-clad women. Take too long, and the image "turns" - the woman turns into a hideous monster as the gameplay gets harder. It's the ultimate in Fetish Retardant, and freaky.
- 40 Winks was intended to be a pseudo-nightmare played in a way that was positively adorable. Even though the "scary" aspects of the game were mild, the completely innocuous music and eerie simlish were complete Nightmare Fuel.
- Ōkami: Most locations are vibrant with colorful characters, bright music, and thick-line artwork reminiscent of a Japanese scroll painting. The surprise comes mostly from two locations: the Sunken Ship and Yoshpet forest. They are creepy and quite jarring in contrast to the rest of the world. And there's also the Body Horror parts where you go inside someone's body, which is as nasty-looking as you'd expect (particularly the stomach acid dripping from the water dragon).
- Free Realms: Merry Vale, the 24-hour party place where everyone has fun! ... too much fun to notice that their kids are getting abducted.
- Hatoful Boyfriend: A very, very silly game about dating pigeons. At least until the backstory reveals itself.
- Quest Fantasy is So Bad, It's Good, and involves characters who go "oh es so kawaii" and reference the zelda cd-i games. The second half of the game has characters dying and bleeding from their eyes and a boss that is a Shout-Out to Giygas.
- Can Your Pet is a cute online Tamagotchi-style game in which you dress up, feed, bathe, and play with a baby chicken. Then you unlock the bicycle. It's not a bicycle, but saw blades that will kill the chicken you so lovingly raised.
- Cave Story has a Badass Adorable player character and his Action Girl partner, Ridiculously Cute Critter NPCs, and a Recurring Boss made of ham and soap, with a few sinister implications as to the plans of the Doctor. Then said Doctor reveals himself to be irredeemably evil in the worst way possible, the whole supporting cast is dead, captured or incapacitated, and in order to prevent a repeat of the war ten years ago the characters either have to destroy the whole island (Normal ending) or go to Hell and kill the island's prisoner (Best ending).
- The webgame Cookie Clicker starts off mundane, then moves to ridiculous, then suddenly turns creepy when you unlock the "grandmapocalyse", with progressively warped images of grandmas appearing on the page background, creepy status/news updates that keep getting worse and worse from "unnerving" to "apocalyptic", and some disgusting worm-like things raiding your cookie stash, which you have to fend off.
- Sonic the Hedgehog (2006), as reviled as it is, does have a surprisingly creepy villain in Mephilis, a manipulative character vaguely resembling Shadow who has no mouth, yet speaks. Not helping matters is the fact that, in the endgame, he straight-up murders Sonic in the blink of an eye.
- Sonic Adventure and Sonic Adventure 2 got the Surprise Creepy ball running for the series in general. Players expect the same old song-and-dance of Sonic stopping Eggman from taking over the world, but the former throws a curveball with the reveal that Eggman's new pet, Chaos, wiped out an ancient civilization (the circumstances leading up to it being pretty frightening in their own right) and almost does the same thing in the present day. The sequel sends things even further Off the Rails when it turns out someone was straight-up KILLED in the backstory, fueling a drive for revenge on the part of Eggman's grandfather that nearly destroys the world!
- Indie developer CC & SH loves this trope. It normally appears as an Easter Egg that you have to go and go very much out of your way to hunt down. For example, in their first ever game, Ping!, clicking specific spots on the screen during the end credits will cause the game to suddenly go full-screen, showing a black background with pulsating Chinese text and a very disturbing noise. You can't even exit the game at this point without bringing up task manager, either.
- Calm Time starts relatively normal, with a party being held at a house in the countryside and the guests enjoying it and socializing. Then a girl in the kitchen asks you if you can hand her over the knife so she can cut the bread. Already from the way the main character holds the knife can you deduce that something is amiss, and shortly after that, shit gets real.
- The freeware game Dreaming Mary starts out, on the surface, in an adorable pastel-colored dream world where you play with a bunny, a penguin, a fox and a boar, fulfilling certain tasks from the first three animals and eventually getting all four seeds necessary to join the boar behind the last door. You're told through the radio that there are only three doors in the hallway, and you shouldn't look for a fourth one. Obviously, there IS a hidden fourth door, and entering it will unlock an alternate version of the dream world that can be entered through the painting in your bedroom... It's a shadowy, Real Is Brown, blood-stained living room with the plushies that three of the dream animals represent (each getting torn up after receiving a seed) and the stuffed head of a boar, and it's all pivotal to unlocking the Golden Ending. Also, watch out for the crude shadowy figure that chases after you whilst calling you a "sweet girl" in its deep, uncanny voice.
- The game Fantasy Maidens Odd Hideout starts out cute and lighthearted, with young friends playing together in a house made of desserts, and fairies who live inside the house. Then the door knob on the house's only exit is removed, and it and all the windows are boarded up, trapping them inside, and it all goes downhill from there...
- Spookys House Of Jumpscares presents itself as a Defanged Horrors parody of horror games, where you navigate the house of the titular Cute Ghost Girl, and at most you get startled by cute cardboard cutouts. That is, until you progress further into the game, where you encounter the actual monsters and come across various notes left by previous travelers. Spooky herself is also heavily implied to be not what she seems.
- Courage the Cowardly Dog, taking cartoony premises and villains and making them genuinely horrifying. Katz is probably the most frequent source, as when his latest overly elaborate Death Trap fails he usually just resorts to strangling Courage.
- The original My Little Pony pilot, "Rescue at Midnight Castle". Starts off with rainbow ponies playing around and a cute song, and then suddenly switches to ponies being kidnapped by the dragon-like minions of a demonic centaur. It only gets worse after that with the ponies being turned into monsters, and the villain threatening to decapitate a baby dragon.
- My Little Pony: Friendship Is Magic continues the series' fine tradition of cute cartoon ponies facing dangerous situations and sinister evil-doers.
- "Party of One" has Pinkie Pie become depressed because she thinks her friends don't like her anymore. You think you're in for something sad, but then cue Sanity Slippage Companion Cube party with twitches, abstract flickering backgrounds, and enough Creepy Circus Music to make you think the makers of Silent Hill were behind the scene.
- "The Return of Harmony" introduces Discord, a goofy-looking Mix-and-Match Critter trickster villain who starts causing chaos in Equestria by making a cotton-candy-and-chocolate storm, and sets up a game for the ponies to play in order to defeat him. Said game has him gleefully break and corrupt five of them, and deliberately rigs the game to make it impossible for him to lose. The first part ends with him winning, and he spends most of the second part turning Equestria into a World of Chaos and rubbing Twilight's face in her failure until she (temporarily, thankfully) crosses the Despair Event Horizon.
- "Lesson Zero", infamously so. The series is no stranger to Sanity Slippages, but Twilight's descent into paranoia and insanity, complete with an endless parade of Nightmare Faces, is immensely disturbing. "HIII, GIIIIIRRLS!" indeed.
- In "Hearth's Warming Eve'', the play starts out somewhat serious, but still not that bad. Cue Eldritch Abominations feeding off the founders' Fantastic Racism and attempting to freeze the entire world. Keep in mind that the play is based directly off of the history of Equestria's founding, so it most certainly did happen in "real life".
- "Baby Cakes": Aww, it's a babysitting episode, how kyuuute! Wait, where'd they go, and what's with the sinister music?
- "A Canterlot Wedding:" Twilight Sparkle has apparently messed up big time, and she's sad, but it looks like Cadance and she will make up. Then HOLY HORSEAPPLES "Cadence" is evil! Part 2 ratchets up the horror even further, with a full scale invasion of Canterlot by bug-like shape-shifting monsters.
- The Chimera from the episode "Somepony To Watch Over Me" in season 4 was definitely a big surprise. She is arguably the creepiest villain in the whole show, and is especially surprising because it is the first time a truly scary villain has ever shown up in any episode that wasn't either a season opener or a season finale, and that episode seemed like a typical comedic Slice of Life episode at first.
- Sweetie Bell's nightmare in "For Whom the Sweetie Bell Toils" is surprisingly disturbing for an otherwise mundane Slice of Life episode.
- The Powerpuff Girls has the infamous episode "Speed Demon." The Powerpuffs decide to race home from school... and go so fast that they warp into a strange, warped and destroyed version of Townsville. There, they see that the townspeople have gone insane. The Mayor is dead and Miss Bellum blames herself. The Professor (their father figure) is obsessed with futilely recreating his girls (and attacks the real things when he thinks they're hallucinations). And their kind-hearted schoolteacher just stands in place, right where she was waving goodbye to the Powerpuff Girls before they vanished for over 50 years. It's at this point that the already-creepy villain known only as Him shows up and reveals his true form, informing the girls that because they weren't around to save the day, this nightmare world is all their fault. They manage to go back in time so they can stop the Bad Future by being there to save the day, but the Fridge Horror of the episode is palpable.
- Adventure Time looks like such a fun and childish show, and most of the time it genuinely is. Then comes the mountains of Nightmare Fuel, loads of Backstory Horror, and numerous Vile Villains.
- "Holly Jolly Secrets" is by far the most infamous example. A two-part episode composed mostly of Christmas-like hijinks and watching Ice King's embarrassing video diaries, it ends with the most shocking and depressing reveal in the entire series, forever changing the nature of a main character. "My name is Simon Petrikov."
- "Beautopia" is nowhere near as bad, but when those inflatable pool floaties turn out to be anything but, even the characters are terrified.
- "Finn the Human"/"Jake the Dog" begins in an Alternate Universe where Finn is a normal kid with a normal dog and deals with normal family problems, trying to help his parents with a gang of thugs. Cue the Destiny Gang burning down Finn's house with his family still inside, Finn becoming the Ice King and losing it in a horrifying way, and the origin of the Lich.
- The Marvelous Misadventures of Flapjack is also like this. One episode showed what appeared to be a cute child, turn out to be a creepy looking older guy.
- As the picture shows, a short called "The Snowman". Starts off really cutesy, with a human and his animal friends building a snowman and dancing around, but all hell breaks loose when the snowman comes to life and goes on a rampage.
- By the same company, "Circus Capers", a cartoon that blatantly plagiarizes the designs of Mickey and Minnie Mouse, starts off pretty generic and happy... then Minnie is revealed to be cheating on Mickey with the obvious villain of the cartoon. Mickey discovers this, and almost instantly becomes fat and depressed. He begins to sing "laugh clown, laugh" with a horridly wrinkled and disfigured face. In response, Minnie realizes her horrid mistake, attempting to return to Mickey. He rejects her, and, out of nowhere, HIS FACE COMES OFF OF HIS BODY, ENLARGES, WINKS AT THE SCREEN, AND INFLATES, COVERING THE ENTIRE SCREEN WITH THE BLACKNESS OF HIS NOSE. What follows in several prints of the cartoon is a quick cut to a bunch of happy dancing ducks from the unrelated short The Booze Hangs High. A couple prints give a "The End" screen instead of said ducks, but one wonders if that wasn't the actual ending.
- The Simpsons "Treehouse of Horror" episodes are mostly comedy, but some of them are actually pretty disturbing.
- The Phineas and Ferb episode "Phineas and Ferb Get Busted!" starts as a typical episode, but it all changed when their mother actually finds out about the boys shenanigans. From then on, it becomes way darker and morbid than a typical episode. It turned out to be All Just a Dream at the end, but still.
- Steven Universe. On the surface, it looks like a fantasy series about a group of warriors and the boy trying to understand his powers, while they fight monsters of the week. It's mostly lighthearted, but Steven nearly gets himself killed by being unable to control his abilities more than once, many of the characters live rather sad lives, aformentioned monsters are really Gems like the heroes that have been corrupted in some way, and there was an episode that ended with Steven watching several copies of him turn to dust and die.
- Over the Garden Wall is a charming story of two brothers trying to get home, meeting a bunch of colorful characters while being periodically menaced by whatever creatures The Lost Woods can throw at them, but ends up being a Double Subversion. For the first half all the supposedly creepy things and people turn out to be either harmless or outright helpful, and most of the conflict comes from Wirt unintentionally making things harder for himself. Then a witch that tries to brainwash them is melted and an evil possessing spirit tries to eat them. Then the Beast takes center stage, and everything goes to hell very quickly.