History NightmareFuel / Rugrats

* The Inside Story is scary for a lot of reasons, the fact the babies travel inside Chucky's body is creepy itself to get the watermelon seed out of him, but the fact Angelica wanted to kill Chucky by watering the seed so it will explode inside of Chucky is nightmare fuel and shows how dangerous Angelica is.

* "New Kid in Town", where Tommy and his friends join up with this fat boy named Josh, who decides to play a game called "Pillow". He swings to the highest point he can and then tells the babies he's not trying to jump over them ...but he's going to jump ''on top'' of them. This kid looked heavier than all four babies ''combined'', and he was going at least as high at the swing bar. Had it not been for Angelica intervening when she did, imagine what could have happened. Also, this episode appears to be stating that slavery is all right as long as the master doesn't try to kill his or her slaves. No matter what, slavery is wrong and illegal.

[[caption-width-right:330:https://static.tvtropes.org/pmwiki/pub/images/chuckiesmonster.png [-[[SurvivalMantra "There's no such things as monsters, there's no such things as monsters, there's no such things as monsters..."]] [[note]]Don't worry, it's just Chaz's sweater.[[/note]]]]-]

** The worst part is when Stu’s snow machine malfunctions and the adults get snowed inside the cabin. Betty says it could take them “hours or days” to get out, and Chaz says they’ll run out of oxygen by then. Howard starts panicking, with Kira telling him to get a grip. Lulu then results in trying to smash the door down with one of the animatronics, with Stu saying that “someone might get hurt”. They did eventually get out in time for Christmas, but YIKES. Didi even starts worrying that she will miss Dil getting his first chance to see Santa.
** Chaz accidentally starting a fire. Keep in mind that the adults are inside a small cabin. Made of highly flammable wood. Trapped by six feet of snow. And the way he suddenly yells can startle any viewer.

** The end of the episode had Chaz walk out of Chuckie's room after tucking him in and noticing Stu turned away from him. He says, "Stu, I didn't know you were coming over..." only to be confronted with Stu having a similar clown face that dream-Tommy had and saying, "I'm not Stu!" before also laughing creepily as the episode ends with Chaz [[CatapultNightmare waking up screaming in terror]]. Unlike the Not-Tommy dream, which is already pretty surreal and made obvious it's just a dream before the reveal, the Not-Stu reveal ''comes out of nowhere'' and is very hard to tell it's actually a dream until the reveal.

* Chaz's psychotic dependency on puppets.

* “Sleep Trouble” has Stu tell Tommy and Chuckie about the Sandman during a storm. Chuckie then worries that the Sandman will bury them, so he and Tommy set up traps. Meanwhile, Chaz starts getting worried and starts to bring Chuckie home. The fact that most of the episode takes place at night during a storm does not help. And then Chaz is on his phone while driving, which is dangerous regardless of weather.

*** Also in this episode, Chuckie finds that his father's [[SanitySlippage sanity has been shattered]] by loneliness, and he lives in a squalid house where empty pizza boxes have become furniture, and his only friend is his schizophrenic outlet: [[CompanionCube a sock puppet.]] It even becomes a TearJerker [[HarsherInHindsight if you've seen]] "[[Recap/RugratsS4E2MothersDay Mother's Day]]" and you know that Chaz' wife is already dead and Chuckie is their only child.

** Honestly, the fact that Chaz apologizes is even scarier. [[AdultFear Imagine having to face the fact that your toddler son has become a bloodthirsty hybrid of human and canine]], and you can't do anything to help but contain him at the very best.

--->'''Tommy''': I'm glad my dad's not a robot, Chuckie.\\

-->'''Mad Scientist''': At last, my experiment is almost complete. Soon I will replace every man, woman and child with my robots and TakeOverTheWrld! ''(Cackles maniacally!)''\\

** Not to mention that the Santa here was voiced by ''[[Creator/TonyJay fucking]]'' '''''[[WesternAnimation/TheHunchbackOfNotreDame Frollo]]''''' and [[WesternAnimation/ReBoot Megabyte]]! To be fair, he's also Dr. Lipschitz, but without the goofy accent he puts on like with that character, he just sounds terrifying.

** There’s also Tommy being mishandled by the mailing devices, notably being grabbed and shaken by a menacing robotic arm, during which he makes cries that sound disturbingly like an actual infant. Real babies can easily get [[https://en.wikipedia.org/wiki/Shaken_baby_syndrome brain damage]] from being shaken too hard--which is why you should never, ''ever'' shake a baby, no matter how angry or frustrated you get.

** The whole episode is honestly pretty horrifying. Stu essentially gets brain damage, gets mentally regressed into an infant, and is convinced by babies to climb up the roof ''again'' where he falls ''again'' and gets worse injuries... [[FridgeHorror Didi is LockedOutOfTheLoop on all of this...]]

* "The Case of the Missing Rugrat" is loaded to the brim with nightmare fuel. Just the fact that Lou was careless enough to lose Tommy in a strangers car and having him taken to a strange place is scary enough. Even ignoring the episode is a reference to Film/GreyGardens Tommy basically being kidnapped and nearly adopted by these decrepit and obviously unhinged old women is enough to send a chill down anyone’s spine... the large amount of cats do not help. Lou has to go through absolute hell to even get the info to where Tommy was taken; he could’ve his (then) only grandson forever!

** There’s also Tommy being mishandled by the mailing devices, notably being grabbed and shaken by a menacing robotic arm, during which he makes cries that sound disturbingly like an actual infant.

* In ''Stu-Maker's Elves'', Tommy and Chuckie had to go down to the basement to get a fly-away frisbee. The basement was creepy, but the real nightmare fuel was a creepy first-person view of Chuckie's memory of being spanked by the doctors. We see Chuckie being held upside-down with his [[UncannyValley freakishly malformed and tube-like arms]] dangling beneath him, flying around franticly, and the loud "SMACK SMACK SMACK!" coupled with Chuckie bawling. It's probably the most terrifying thing to ever happen in the series.
* The episode ''Under Chuckie's Bed'' where Chuckie gets a new bed to replace his crib and thinks there is a [[ThingsThatGoBumpInTheNight monster under there]] and imagines that it's talking to him. When Chuckie dares to peek under his bed for the monster he actually saw a dark, demonic-looking humanoid WITH AN ARM REACHING TOWARDS HIM. This image is pictured above, by the way.

* The [[MonsterClown clown lamp]] in the episode ''The Trial''. No wonder Chuckie was terrified of it.

* The vicious bull dog in the episode ''Barbecue Story'', specifically the part where Tommy and Chuckie are in the bull dog's yard searching for Tommy's ball and the dog growls at them, yanking so hard at its chain that it pulls against the dog house and ''[[SuperStrength pulls the dog house out from the ground nail by nail]]'' with the dog getting closer and closer to Tommy and Chuckie. Thankfully Spike comes along in a creepy voodoo mask of some sort and saves them.
** While not nearly as scary visually, the "monster dog" in ''In the Dreamtime'' almost ready to pounce on Chuckie while the whole time he thinks he’s dreaming can be nerve wracking. Then Chuckie realizes [[OhCrap he ain’t dreamin’...]]
* Angelica's temporary HeelFaceTurn in ''Angelica for a Day'' can be creepy to some. [[TheUnsmile The smile]] on her face seems so forced and unnatural.

* Worst of all is Angelica's [[NightmareSequence would-be]] [[EnfantTerrible baby brother]] from the episode, ''Angelica's Worst Nightmare''. It begins with Angelica hearing a baby crying. She finds her parents fawning over the new baby, saying how "precious" and "adorable" it is while not knowing who Angelica is. After the Drew and Charlotte leave, Angelica talks to the baby, and, much in the same matter as Tommy and the gang, Angelica's new baby brother can talk. However, he's more like ''WesternAnimation/FamilyGuy'''s Stewie minus the evil humor and with a horrifyingly deep and raspy voice, and tells Angelica that this house isn't big enough for the both of them, saying that Angelica (the "old baby") should be gone permanently. Angelica tries to flee from him, but the baby keeps finding her, and growing every time there's an encounter between them. The dream enters its horrifying climax as Angelica's now [[AttackOfTheFiftyFootWhatever Godzilla-sized]] baby brother catches her in her getaway car, wondering "what a toy car would taste like". It all ends with Angelica screaming, "No! Please, I'm your big sister!" and the baby replying, "WELL NOW YOU'RE NUM-NUMS!" and putting Angelica ([[ExtremeOmnivore car and all]]) in his dark cave-like mouth.

* In the episode ''Dust Bunnies'', Chuckie becomes scared of dust bunnies. So scared that he has a nightmare where a giant, evil, slobbering rabbit drags him into the basement with its slimy ears, while he screams the whole time.

* In ''What The Big People Do'', Tommy and Chuckie have a dream about being grown up and going to work. All is well and good, until they are called into The Boss's office. They have to first walk down a hallway with giant pictures of past bosses and are thrown into the the boss's room by the carpet in the hallway. The doors slam shut, creepy organ music plays, and the entire room is enshrouded in shadows save for the boss' chair, which makes a [[HellIsThatNoise horrible creaking noise.]] The Boss is the adult version of Angelica, who threatens to have them "[[LargeHam FIREEEED!]]", and then flames shoot at Tommy and Chuckie from these two Reptar statues she has in her office. They flee while the the past bosses climb out of their portraits to stop them. Angelica calls in some creepy robot minions, and all the time insanely creepy music is playing while the angry-faced robots close in on them. Had to be one of the creepiest things in Rugrats ever.

** To a lesser extent, the sight of the Babies (and Angelica’s) heads on adult bodies can lead to some SERIOUS UncannyValley.

-->'''Chuckie:''' Why is he out here? Why isn't he inside playing with his toys?
-->'''Angel:''' Angelica took his toys.
-->'''Chuckie:''' What about his house?
-->'''Angel:''' She also took his house.
-->'''Chuckie:''' What about his parents?... You mean...
-->'''Angel:''' Yep, [[RuleofThree she took them too]].

*** Also in this episode, Chuckie finds that his father's [[SanitySlippage sanity has been shattered]] by loneliness, and he lives in a squalid house where empty pizza boxes have become furniture, and his only friend is his schizophrenic outlet: [[CompanionCube a sock puppet.]] It even becomes a TearJerker [[HarsherInHindsight if you've seen]] ''[[Recap/RugratsS4E2MothersDay Mother's Day]]'' and you know that Chas' wife is already dead and Chuckie is their only child.

*** But even worse is what lead to Chuckie dreaming this fantasy world. After he mistakenly believes his friends lost his dad's favorite CD (really Angelica stole it) and gets mad at them, Angelica basically tells him this to shatter any confidence he has in himself. Doubles as a TearJerker:
-->'''Angelica:''' Y’see Chuckie there are two kinds of people in this world: people who make thing better; people like me. And people who just seem to... get in the way; people like you...
-->'''Chuckie:''' Isn’t there anything I can do?
-->'''Angelica:''' Not really Chuckie. The bottom line is we’d all be a lot better off without you.
* In ''Chuckie Loses His Glasses'', when Angelica steals Chuckie's glasses, his imagination runs wild without them and he begins seeing ordinary objects as [[MonsterClown creepy clowns]] and the like.

* In ''The First Cut'', Tommy gets cut on a rose bush. He later dreams that when he gets cut, endless amounts of stuffing starts pouring out of the wound, as if he's a stuffed doll (this was inspired by a damaged teddy bear earlier in the episode).

-->'''Tommy:''' Like a dog?
-->'''Susie:''' No, Tommy. Not like a dog.[[note]]More like a hyena.[[/note]]

* ''Party Animals'', in which the babies walk in on a costume party and become convinced that the world has changed via what they believe is Aladdin’s Lamp. Throughout the episode, a man dressed as a baby (Didi's cousin Bucky) is chasing the babies and yelling at them to pull his finger. Worse, he continues to do this, even when it is plainly obvious that the babies are dead terrified. Eventually the babies manage to trap him and lock him in the bathroom. A while after the party has ended, Angelica wakes up and has to go to the bathroom, but Tommy and the gang try and stop her, thinking that the world is still "topsy-turvy". Angelica leads them near the stairs and shows them that the world is completely normal (the adults are just vacuuming and relaxing) and that it was probably all in their heads. She then goes to where the bathroom is, opens the door... [[JumpScare and Giant Man-Baby jumps right out]], shouting at her, '''"HEY, PULL MY FINGER!"'''

** To make matters far worse? Bucky’s costume consisted of him wearing ''only a diaper''! Now imagine the sight of a fat grown man in only a diaper chasing babies around telling them to "pull my finger!" Even with context this just looks... wrong...
* The scene in ''Grandpa's Teeth'' where [[FeatheredFiend a goose]] wears Grandpa's dentures and kidnaps Chuckie was pretty creepy. Not to mention, the goose ''roaring'' at a boy on a horse and causing a massive stampede. As if real geese weren't terrifying enough.
* The way Susie is [[EstablishingCharacterMoment introduced into the series]] in ''Meet the Carmichaels'', [[BodyWipe namely her running into the camera]] while sobbing hysterically.
* Tommy's [[MushroomSamba fever dream sequence]] in ''Slumber Party''. [[{{Understatement}} Surreal]] doesn't cover it.
* In ''Down the Drain'' Angelica tells Tommy a story (in a similar vein to the 'monster under the bed' story mentioned above) about a nice boy who was ''swallowed up'' by his own bathtub.
** To couple with the above-example in ''Tommy Pickles and the Great White Thing'' there’s Tommy and Chuckie trying to plug up the bathtub drain with Play-Doh, Tommy climbing in and out of the tub and almost falling over! Two babies left unattended in a bathroom is always a terrifying thought.
* The episode about the mole people in the basement was horrifying. ''Especially'' the ending, which features [[spoiler: the basement door opening ...and two glowing green eyes, belonging to a mole person, appearing in the pitch darkness]]. Eep.
* A good example of how scary Angelica can be? The episode ''Tooth or Dare''. Specifically when she gets the idea to pull out Chuckie's teeth when she learns about the Tooth Fairy from Susie. "I'M GONNA GET THOSE TEETH IF IT'S THE LAST THING I EVER DO!!!!!"
* In ''Spike Runs Away'', Tommy's parents briefly adopt a pair of gerbils. Soon there are ''hundreds'' of gerbils, covering the entire floor. It's strangely disturbing.

* Stu's [[SanitySlippage descent into madness]] after Angelica pretends to break her leg in the episode ''Angelica Breaks A Leg''.
** Seeing the image of Angelica's entire skeleton and also the skeleton of Bob the x-ray technician as he takes pictures of her insides was quite creepy.
** Angelica's buzzer? Mildly irritating at worst. [[spoiler: Charlotte's buzzer? Terrifying.]]
* ''Regarding Stuie'', in which Stu falls off the roof and hits his head. He becomes like a baby and plays around with Tommy and the others. Towards the end, Tommy realizes his daddy is never coming back, because "Stuie" ''is'' his daddy, and starts crying for him...

* ''Mega Diaper Babies'' ends with the babies rescuing their favorite superheroes from a giant robotic Angelica, then waving goodbye as the heroes go retrieve some stolen oxygen ...[[MoodWhiplash then Angelica looms over Tommy's house and laughs evilly.]] The end credits music for the episode sounds kind of creepy as well.

* ''New Kid in Town'', where Tommy and his friends join up with this fat boy named Josh, who decides to play a game called "Pillow". He swings to the highest point he can and then tells the babies he's not trying to jump over them ...but he's going to jump ''on top'' of them. This kid looked heavier than all four babies ''combined'', and he was going at least as high at the swing bar. Had it not been for Angelica intervening when she did, imagine what could have happened. Also, this episode appears to be stating that slavery is all right as long as the master doesn't try to kill his or her slaves. No matter what, slavery is wrong and illegal.

* One episode where the kids tell scary stories features the monsters from WesternAnimation/AaahhRealMonsters showing up to ''eat'' the babies.[[note]]Even though it is stated that the monsters from Aaahh!!! Real Monsters do not eat humans, this is a different show so different rules apply.[[/note]]
* ''Weaning Tommy''. Tommy more or less goes into [[GRatedDrug withdrawal after a couple of days without his bottle]]. He has a fever dream that cannot be described as anything less than horrifying. At one point, a giant sippy cup with a SlasherSmile chases him around, shouting "DRINK ME!!!"
---> '''Didi''': Tommy, [[AdultsAreUseless did you have a nice nap?]]
---> '''[[https://vignette.wikia.nocookie.net/rugrats/images/e/e2/Rugrats_-_Weaning_Tommy_325.jpg/revision/latest?cb=20190205112611 Tommy]]''': ''([[YouLookLikeYouveSeenAGhost Evidently not]].)''

* ''Toy Palace'' had an actual working ''time machine'' (the Wee Willie Warp Time Translator) and a life-size toy robot got inside after hijinks ensued. It was transported back to the Revolutionary War in the middle of an ongoing battle with no way to return. Tommy and Chuckie, an ''infant and toddler'', could've ended up lost in the past forever in the middle of a '''''bloody battle!''''' Just imagine the trauma ''that'' would wreak on their innocent minds...

* ''The Santa Experience'' has some pretty scary moments but the scariest has to be the nightmare Angelica has. The way Santa's so threatening towards her is unsettling, then Santa '''''buries her alive in coal''''' while she screams and Santa just laughs evilly! Imagine the thousands of toddlers and children that saw this and it was just their first time meeting Santa.

* The episode ''Ruthless Tommy'' [[AdultFear where Tommy is freakin' kidnapped]], and the adults have ''absolutely no idea'' he's gone until ''hours'' later, [[PitytheKidnapper when the crooks can't handle it and decide to return him]].
* ''The Sky is Falling''. It was not common for a kid's cartoon to tackle the issue of the apocalypse at the time.
* ''Grandpa's Bad Bug''. Imagine breaking a promise (and lying to hide what you did), then waking up to sights like ''a bunch of bugs crawling all over you''. Sure, we clearly see that the babies brought them in, and it was out of good intentions (wanting some good bugs to fight the "bad bug" out of Grandpa's system), but he had no way of knowing that. When you look at it from his point of view, there could have been something supernatural going on, for all he knew.

** It runs in the family. Check out his dead eyed [[http://vignette3.wikia.nocookie.net/rugrats/images/5/5b/Sonsajak.PNG/revision/latest?cb=20150720165227 son.]]
* In ''Spike's Babies'', Stu decides to board up the crawlspace entrance, unaware that there are kittens hiding inside. If Tommy hadn't freed Spike, the kittens would have been sealed up and left to starve to death.
* ''The Incredible Shrinking Babies'' may have been AllJustADream ([[OrWasItADream or was it...?]]) but it's still plenty disturbing. Basically, Chuckie has a nightmare that he, Tommy and the twins have all shrunken to the size of dolls while Dil is still his normal size and thus much bigger than them. He tries repeatedly to "play" with them and they're powerless to stop him ...and it culminates in him ''[[EatenAlive eating Chuckie alive.]]''
* In ''Rebel Without A Teddy Bear'', there is a long panning shot of the sheer amount of damage Tommy has done to the Pickles house as a result of Angelica telling him to "go bad". Seeing an established setting completely trashed, cartoon or otherwise, is a bit much. Especially seeing just '''how''' much damage Tommy has done, most notably seeing the playpen hacked to bits and a smashed huge gap in the large window of the sliding door by said playpen, settings in particular are very familiar to viewers.

* Tommy’s very first bruise in ''Touchdown Tommy'' is nothing to sneeze at when it comes to AdultFear. Going by the animation it doesn’t even look like he hit it that hard to make such a whopper of a bruise... but babies heads ARE very soft after all; and had he hit one of the sharp corners getting his balloon... well Didi’s scream when he bumps his head a ''second time'' really does say it all...

* From the [=PS1=] game ''Rugrats: Search for Reptar'', there is a level called ''Let There Be Light'' in which there's a powercut, and you need to control Tommy to find the light (i.e., the fridge). Little Tommy is only armed with a flashlight and there's freaking ''ghosts'' around the entire house. Strangely, he isn't afraid of the ghosts.
** In the mini golf level, there is a hidden entrance in the pyramid on the eighth hole. Inside the pyramid there is a maze of seemingly empty corridors filled with nothing but Reptar bars. You go around exploring and gathering the bars ...until you hear a strange mechanical noise and follow it to find a mummified version of Mr. Friend which immediately starts coming towards you, by which time, you're running out of there (luckily he is harmless in this encounter, but you won't know that when you first see him and could likely experience quite a JumpScare from the sudden encounter). The pyramid is dimly lit, just like one in a horror game would be, and you encounter him in a tiny room after turning a very narrow corner, putting him right in your face. This should not have been in a kids game.
*** With the Mr Fiend/Friend, once you realize that he is harmless, if you can handle the creepiness and move slowly enough, he will follow you out of the pyramid. Then he reaches sunlight and [[BodyHorror breaks apart]], which actually [[AlasPoorVillain makes you feel sorry for him]] since he is harmless here. JumpScare and BodyHorror aside, it can take up to 3 minutes to get him outside (if you don't get lost), which is a long time in that place...

--> '''Mr Friend:''' Oh boy, a brand new friend to meet! Let's wash our hands before we eat! You can call me Mr Friend! You'll never, ever be bored again!
** The Toy Palace level is full on creepy in it's dark, closed store feel and with monsters chasing after you, though the original episode was as well. The worst part of the first section is that you can encounter more Mr. Friend dolls at one point that will attack you, and there's no warning either. Oh, and you have to deal with them to get the Reptar bars they're guarding.
*** The last part of the level has you playing as Tommy collecting boxes to get high enough to press the button to activate Reptar so that he can fight Thorg. Trouble is, Thorg is waiting for you everytime you go to get a box and you'll always hear his loud, metallic footsteps getting closer before you see him.

** The level based on ''Grandpa's Teeth'' was rather scary, set in a large maze with bizarre-looking geese popping out every now and then.

* A Rugrats HalloweenEpisode storybook called ''Curse of the Werewuff'' revolves around Chuckie's fear that if he puts on a werewolf costume, he'll turn into a real werewolf. At one point, he has a nightmare about being hunted down by an angry mob wielding torches and pitchforks.
** Said mob includes his ''parents''. Although his dad ''does'' [[ApologeticAttacker apologize]] during the confrontation at the end of the dream. Still disturbing though.

* The first aired episode ''Tommy's First Birthday'' has Angelica's shadow when she's placed in the crib and she approaches the babies.
* The episode ''Special Delivery'' has Tommy exploring the post office, and goes through the chute to the dead letter office, on a conveyor belt leading to what is best described as the junk-mail pit of death, complete with the skeleton of a postal worker who had apparently fallen in years before.[[note]]However, the skeleton could have just been an old Halloween prop.[[/note]]

* In the episode ''Reptar on Ice'' there was a creepy scene showing the lizard's point of view of how humans look, first Tommy's face up close, then Phil and [[http://dw91iscgvb0p5.cloudfront.net/assets/data/1091_3ef7a830ae1b751483781713ac0367fd.jpg Lil]], it is really horrifying.
* In ''Chuckie vs. The Potty'', Chuckie has a nightmare where his potty-training is like death row, complete with screams of ''"Not the chair! NOT THE CHAIR!"'' Just to make it even creepier, the sequence features ''all'' of the babies--Phil and Lil appear as the prison guards that march Chuckie to the chair, and Tommy is an [[DissonantSerenity eerily calm]] priest who tries to console him. The bit ends with Angelica as the executioner, who pulls off her mask to reveal one of the creepiest SlasherSmile and EvilLaugh combinations EVER, and flushes Chuckie down a giant toilet.

** There’s also the group of snarling, thuggish adult men [[FanDisservice wearing only diapers]] leering from their cell at Chuckie.

** One of the Mr. Friends seemed almost... sentient. What with how it hid from Tommy’s parents and was able to "conveniently" wander into the other Mr. Friends and activate them as an army that JUST SO HAPPENED to find the Babies... Innocent child’s toy that Tommy and his pals were simply too young for? Or something... otherworldly?

** Just before that the Babies commandeer the space ship and [[HurlItIntoTheSun go flying into the sun!]]

** Chuckie's second dream, while not nearly as memorable as the above sequences, still is rather unsettling at some points. It starts off normally, the house gets full of AlienGeometries, at which point the background music becomes distorted, and the babies enter a large hall filled with strange pictures of Tommy on the wall. Some of them are just goofy looking (such as a picture of Tommy with a stretched out neck), others are just ...bizarrely creepy (among others, there are such things as a bunch of Tommy heads stacked on each other, a Tommy whose body is his head, a Tommy with ''six eyes'', etc.), to say nothing of poor Chuckie falling screaming into a void...
* There are moments of this in the episode ''Real or Robots''. It opens with Tommy and Chuckle watching a movie about a mad scientist plotting world domination with his robots. Stu quickly turns it off.
-->'''Mad Scientist''': At last, my experiment is almost complete. Soon I will replace every man, woman and child with my robots and take over the world! ''(Cackles maniacally!)''\\

--->'''Tommy''': I'm glad my dad's not a robot, Chuckie.
--->'''Chuckie''': Yeah. ({{Beat}}) ...But what about ''my'' dad?! (ScareChord plays)

* In the episode "The Unfair Pair", Angelica convinces Phil and Lil that one of them is the favorite twin that gets everything, and the other is the reject that gets nothing. Seeing Phil and Lil's respective ImagineSpots in which each of them is the reject can be rather disturbing and just plain heartbreaking. One of the twins is dressed in rags and drinking from a bottle with very little milk, sitting in a bare crib while the other is fat, drinking from an overflowing bottle of milk, and sitting in a crib filled with toys while their parents dote on them and ignore the other.

* The [[FantasticVoyagePlot Fantastic Voyage episode]] where Angelica had Chuckie convinced that, because he swallowed a seed, his stomach would be ripped open from the inside by a rapidly growing watermelon. The others had to go in there to get the watermelon seed out before it took root, but they were too late and it started going out of control. The environment inside was dark, claustrophobic and kinda gross. Tommy, Phil and Lil hardly got out in time, and only then was it revealed that it was AllJustADream. To make matters worse, Angelica also almost [[NauseaFuel drowned in mucus]] and Phil also nearly drowned when he fell into the bloodstream and had to be saved. What kid would want to go swimming after watching that? Be glad it was AllJustADream.
** How about the fact that [[EnfantTerrible Angelica]] ''wants'' the watermelon inside Chuckie to grow so he'll explode... One can only wonder what was in her mind when she thought up that wicked idea. This is why some fans consider her a "sociopath". Then again, she did realize what went wrong with her plan only [[DidNotThinkThisThrough when Tommy pointed out she will be in Chuckie's stomach when it explodes]]. Again, it was a dream...

** The [[GrossUpCloseUp close up shots]] of Tommy's bleeding finger.

** The whole matter of getting injections in the first place, even without Angelica playing it up to be the most horrible thing ever. Adults can be terrified of needles too, after all.

** If that wasn't enough, it then shows a starved Tommy beside a ''[[Film/ReturnOfTheJedi Jabba the Hutt]]''-esque Angelica, with his parents rushing around baking her cakes, completely ignoring Tommy, who begs for food, and is rejected!

* Worst of all is Angelica's [[NightmareSequence would-be]] [[EnfantTerrible baby brother]] from the episode, ''Angelica's Worst Nightmare''. It begins with Angelica hearing a baby crying. She finds her parents fawning over the new baby, saying how "precious" and "adorable" it is while not knowing who Angelica is. After the mom and dad leave, Angelica talks to the baby, and, much in the same matter as Tommy and the gang, Angelica's new baby brother can talk. However, he's more like ''WesternAnimation/FamilyGuy'''s Stewie minus the evil humor and with a horrifyingly deep and raspy voice, and tells Angelica that this house isn't big enough for the both of them, and says that Angelica (the "old baby") should be gone permanently. Angelica tries to flee from him, but the baby keeps finding her, and growing every time there's an encounter between them. The dream enters its horrifying climax as Angelica's now [[AttackOfTheFiftyFootWhatever Godzilla-sized]] baby brother catches Angelica in her getaway car, wondering "what a toy car would taste like". It all ends with Angelica screaming, "No! Please, I'm your big sister!" with the baby replying, "WELL NOW YOU'RE NUM-NUMS!" and putting Angelica ([[ExtremeOmnivore car and all]]) in his dark cave-like mouth.

* "Pickles Vs. Pickles": In Drew's nightmare, Angelica sues him and he almost gets thrown in jail. The scenery suddenly darkens as the judge orders him locked up and then the guards take him away from the court, with him kicking and repeatedly screaming "NO! I'm a good father!" while everyone in the audience/jury ''laughs and cheers for Angelica'' and the camera [[EatTheCamera zooms in on his mouth]]. He wakes up immediately after this, but it's still a disturbing scene.

** Some of those chocolate pudding Stu videos, while hilarious, are also quite scary. Like the one where Stu [[DrivenToSuicide contemplates suicide.]] Then there's when Stu finds out what Didi is really like.

* Whenever [[MouthCam you can see the inside of a character's mouth]], whether they be crying, eating, or just simply talking, can be somewhat unsettling.

* [[http://i.imgur.com/nHNmY.png This]] was done by an official artist of the show. How the characters are drawn are rather unnerving. Especially [[NightmareFace the weird face Angelica makes at the end.]] Then there's how Stu [[AbusiveParents verbally abuses Tommy.]] It's hard to blame Tommy for [[BowelBreakingBricks "dropping malt balls" in fear.]] Tommy looks strange while dropping those malt balls in question, too...
** The backstory of it is a whole 'nother level of terrifying. The document itself was a "storyboard jam" among the production team to blow off steam during downtime. After Steve Russel added his bit of dark humor to the jam, it had snowballed out of control into something ''BEYOND NSFL,'' much to his horror. During the development of ''The Wild Thornberrys,'' it was then found by an executive producer and promptly confiscated. [[NothingIsScarier It is unknown if the storyboard jam had been destroyed or if it is sitting somewhere in the Klasky-Csupo archives.]]
* In "Spike's Babies," Stu decides to board up the crawlspace entrance, unaware that there are kittens hiding inside. If Tommy hadn't freed Spike, the kittens would have been sealed up and left to starve to death.
* "The Incredible Shrinking Babies" may have been AllJustADream ([[OrWasItADream or was it...?]]) but it's still plenty disturbing--basically, Chuckie has a nightmare that he, Tommy and the twins have all shrunken to the size of dolls while Dil is still his normal size and thus much bigger than them. He tries repeatedly to "play" with them and they're powerless to stop him...and it culminates in him ''[[EatenAlive eating Chuckie alive.]]''
* [[UncannyValley The old art style]] can be this for anyone who only saw the later seasons, then returned to watch it from the beginning when they were older. Many of the characters, especially the babies, [[SuperDeformed have weird proportions when it comes to their bodies.]]

* Tommy’s very first bruise in "Touchdown Tommy" is nothing to sneeze at when it comes to AdultFear. Going by the animation it doesn’t even look like he hit it that hard to make such a whopper of a bruise... but babies heads ARE very soft after all; and had he hit one of the sharp corners getting his balloon... well Didi’s scream when he bumps his head a SECOND TIME really does say it all...

* From the [=PS1=] game ''Rugrats: Search for Reptar'', there is a level called "Let There Be Light" in which there's a powercut, and you need to control Tommy to find the light (i.e., the fridge). Little Tommy is only armed with a flashlight and there's freaking ''ghosts'' around the entire house. Strangely, he isn't afraid of the ghosts.
** In the mini golf level, there is a hidden entrance in the pyramid on the eighth hole. Inside the pyramid there is a maze of seemingly empty corridors filled with nothing but Reptar bars. You go around exploring and gathering the bars...until you hear a strange mechanical noise and follow it to find a mummified version of Mr. Friend which immediately starts coming towards you, by which time, you're running out of there (luckily he is harmless in this encounter, but you won't know that when you first see him and could likely experience quite a JumpScare from the sudden encounter). The pyramid is dimly lit, just like one in a horror game would be, and you encounter him in a tiny room after turning a very narrow corner, putting him right in your face. This should not have been in a kids game.

** Then there's the actual Mr. Friend level, where you have to fight an army of Mr. Friend dolls. The clincher is the first Mr. Friend coming to life: Tommy is on the ground looking up at the machine, but can't make anything out...until Mr. Friend ''[[JumpScare springs to his feet]]''. If it doesn't freak you the hell out, you're dead inside.

** The Toy Palace level is full on creepy in it's dark, closed store feel and with monsters chasing after you, though the original episode was as well. The worst part of the first section is that you can encounter more Mr. Friend dolls at one point that will attack you, and there is no warning either. Oh, and you have to deal with them to get the Reptar bars they are guarding.

** The level based on "Grandpa's Teeth" was rather scary, set in a large maze with bizarre-looking geese popping out every now and then.
** Just getting a game over was terrifying if you were young enough. If you're playing as a baby they would fall into a sitting position and with a completely pitch black background start crying. They would always say something, but listening to Tommy was scary and depressing, because he always said something like, "I'm sorry, Reptar..."

** And said mob includes his ''parents''. Although his dad ''does'' [[ApologeticAttacker apologize]] during the confrontation at the end of the dream. Still disturbing though.

* [[ItsAWonderfulPlot ''Chuckie's Wonderful Life'']], where Chuckie wants to run away from home when his dad's CD goes missing, where he sees what life would be like if he never existed. What was both terrifying and depressing was when his guardian angel showed him Tommy's dark, grey house, with a beaten, dirty and sad Tommy playing in the trash cans. The dialogue is as follows:

-->'''Chuckie:''' What about his parents? ... You mean...

** And if that wasn't enough, it then shows a starved Tommy beside a ''[[Film/ReturnOfTheJedi Jabba the Hutt]]''-esque Angelica, with his parents rushing around baking her cakes, completely ignoring Tommy, who begs for food, and is rejected!
*** Also in this episode, Chuckie finds that his father's [[SanitySlippage sanity has been shattered]] by loneliness, and he lives in a squalid house where empty pizza boxes have become furniture, and his only friend is his schizophrenic outlet: [[CompanionCube a sock puppet.]] It even becomes a TearJerker [[HarsherInHindsight if you've seen]] "[[Recap/RugratsS4E2MothersDay Mother's Day]]" and you know that Chas' wife is already dead and Chuckie is their only child.

*** But even worse is what lead to Chuckie dreaming this fantasy world. After he mistakenly believes his friends lost his dad’s favorite CD (really Angelica stole it) and gets mad at them, Angelica basically tells him this to shatter any confidence he has in himself. Doubles as a TearJerker:

-->'''Chuckie:''' isn’t there anything I can do?

* In "Chuckie Loses His Glasses", when Angelica steals Chuckie's glasses, his imagination runs wild without them and he begins seeing ordinary objects as [[MonsterClown creepy clowns]] and the like.

* In "The First Cut", Tommy gets cut on a rose bush. He later dreams that when he gets cut, endless amounts of stuffing starts pouring out of the wound, as if he's a stuffed doll (This was inspired by a damaged teddy bear earlier in the episode).

* "The Last Babysitter": With only Alisa, Susie's 15-year-old sister, in charge, the power goes out, and Tommy and Susie think that there's a monster in the dark house. At one point, they sneak upstairs to read Susie's book of monsters, one of which, known as Numerid, "eats bones."

-->'''Susie:''' No, Tommy. Not like a dog. [[note]](more like a hyena)[[/note]]
* The [[FantasticVoyagePlot Fantastic Voyage episode]] where Angelica had Chuckie convinced that, because he swallowed a seed, his stomach would be ripped open from the inside by a rapidly growing watermelon. The others had to go in there to get the watermelon seed out before it took root, but they were too late and it started going out of control. The environment inside was dark and claustrophobic and kinda gross. Tommy, Phil and Lil hardly got out in time, and only then was it revealed that it was AllJustADream. To make matters worse, Angelica also almost [[NauseaFuel drowned in mucus]] and Phil also nearly drowned when he fell into the bloodstream and had to be saved. What kid would want to go swimming after watching that? Be glad it was AllJustADream.
** How about the fact that [[EnfantTerrible Angelica WANTED the watermelon inside Chuckie to grow so he can explode...]] one could wonder what was in her mind when she thought up that wicked idea. This is why some fans consider her a "sociopath". Then again, she did realize what went wrong with her plan only [[DidNotThinkThisThrough when Tommy pointed out she will be in Chuckie's stomach when it explodes]]. Again, it was a dream...
* "Party Animals", in which the babies walk in on a costume party and become convinced that the world has changed via what they believe is Aladdin’s Lamp. Throughout the episode, a man dressed as a baby (Didi's cousin Bucky) is chasing the babies and yelling at them to pull his finger. Worse, he continues to do this, even when it is plainly obvious that the babies are dead terrified. Eventually the babies manage to trap him and lock him in the bathroom. A while after the party has ended, Angelica wakes up and has to go to the bathroom, but Tommy and the gang try and stop her, thinking that the world is still "topsy-turvy". Angelica leads them near the stairs and shows them that the world is completely normal (the adults are just vacuuming and relaxing) and that it was probably all in their heads. She then goes to where the bathroom is, opens the door... [[JumpScare and Giant Man-Baby jumps right out]], shouting at her, '''"HEY, PULL MY FINGER!"'''

** To make matters far worse? Bucky’s costume consisted of him wearing ONLY A DIAPER! Now imagine the sight of a fat grown man in only a diaper chasing babies around telling them to "pull my finger"... even with context this just looks... wrong...
* The scene in "Grandpa's Teeth" where [[FeatheredFiend a goose]] wears Grandpa's dentures and kidnaps Chuckie was pretty creepy. Not to mention, the goose ''roaring'' at a boy on a horse and causing a massive stampede. As if real geese weren't terrifying enough.
* The way Susie is [[EstablishingCharacterMoment introduced into the series]] in "Meet the Carmichaels", [[BodyWipe namely her running into the camera]] while sobbing hysterically.
* Tommy's [[MushroomSamba fever dream sequence]] in "Slumber Party". [[{{Understatement}} Surreal]] doesn't cover it.
* In "Down the Drain" Angelica tells Tommy a story (In a similar vein to the 'monster under the bed' story mentioned above) about a nice boy who was ''swallowed up'' by his own bathtub.
** To couple with the above-example in "Tommy Pickles and the Great White Thing" there’s how Tommy and Chuckie try to plug up the bathtub drain with Play-Doh, Tommy climbing in and out of the tub and almost falling over! Two babies left unattended in a bathroom is always a terrifying thought.
* The episode about the mole people in the basement was horrifying. ''Especially'' the ending, which features [[spoiler: the basement door opening...and two glowing green eyes, belonging to a mole person, appearing in the pitch darkness]]. Eep.
* A good example of how scary Angelica can be? The episode "Tooth or Dare". Specifically when she gets the idea to pull out Chuckie's teeth when she learns about the Tooth Fairy from Susie. "I'M GONNA GET THOSE TEETH IF IT'S THE LAST THING I EVER DO!!!!!"
* In "Spike Runs Away", Tommy's parents briefly adopt a pair of gerbils. Soon there are ''hundreds'' of gerbils, covering the entire floor. It's strangely disturbing.
** Also the tarantula in the same episode. Extreme closeups of spiders' faces are scary enough, but you don't have to be a hobbyist to see the aspect of a joke about ''SMASHING TO DEATH'' an animal people keep as pets.
* Stu's [[SanitySlippage descent into madness]] after Angelica pretends to break her leg in the episode "Angelica Breaks A Leg".
** Some of those chocolate pudding Stu videos while hilarious are also quite scary. Like the one where Stu [[DrivenToSuicide contemplates suicide.]] And then there's when Stu finds out what Didi is really like.

* "Regarding Stuie", in which Stu falls off the roof and hits his head. He becomes like a baby and plays around with Tommy and the others. Towards the end, Tommy realizes his daddy is never coming back, because "Stuie" ''is'' his daddy, and starts crying for him...
** The whole episode is honestly pretty horrifying. Stu essentially gets brain damage, gets mentally regressed into an infant, and is convinced by babies to climb up the roof AGAIN where he falls AGAIN and gets worse injuries... [[FridgeHorror and Didi is completely blind to all of this...]]
* "Mega Diaper Babies" ends with the babies rescuing their favorite superheroes from a giant robotic Angelica, then waving goodbye as the heroes go retrieve some stolen oxygen...[[MoodWhiplash then Angelica looms over Tommy's house and laughs evilly.]] The end credits music for that episode sounds kind of creepy as well.

* "New Kid in Town," where Tommy and his friends join up with this fat boy named Josh, who decides to play a game called "Pillow". He swings to the highest point he can and then tells the babies he's not trying to jump over them...but he's going to jump ''on top'' of them. This kid looked heavier than all four babies ''combined'', and he was going at least as high at the swing bar. Had it not been for Angelica intervening when she did, imagine what could have happened. Also, this episode appears to be stating that slavery is all right as long as the master doesn't try to kill his or her slaves. No matter what, slavery is wrong and illegal.
* When Spike runs away, Stu goes to the pet store for a replacement. It's full of a few {{Freeze Frame Bonus}}es such as an elephant stuffed in a cage, as well as a [[BigCreepyCrawlies praying mantis the size of the adults]]!

* One episode where the kids tell scary stories features the monsters from WesternAnimation/AaahhRealMonsters appearing to ''eat'' the babies. [[note]]Even though it is stated that the monsters from Aaahh!!! Real Monsters do not eat humans, this is a different show so different rules apply.[[/note]]
* "Weaning Tommy". Tommy more or less goes into [[GRatedDrug withdrawal after a couple of days without his bottle]]. He has a fever dream that cannot be described as anything less than horrifying. At one point, a giant sippy cup with a SlasherSmile chases him around, shouting "DRINK ME!!!"

---> '''[[https://vignette.wikia.nocookie.net/rugrats/images/e/e2/Rugrats_-_Weaning_Tommy_325.jpg/revision/latest?cb=20190205112611 Tommy]]''': ([[YouLookLikeYouveSeenAGhost Evidently not]])

* "Toy Palace" had an actual working ''time machine'' (the Wee Willie Warp Time Translator) and a life-size toy robot got inside after hijinks ensued. It was transported back to the Revolutionary War in the middle of an ongoing battle with no way to return. Tommy and Chuckie, an ''infant and toddler'', could've ended up lost in the past forever in the middle of a '''''bloody battle!''''' Just imagine the trauma ''that'' would wreak on their innocent minds...

* Chuckie ''unzipping himself'' to reveal that he's an alien in "The Alien". Granted it was just a fake story Angelica made up, but STILL. The alien's chibi dinosaur appearance lessened the scare factor at least.
* "The Santa Experience" has some pretty nightmarish moments but the scariest has to be the nightmare Angelica has. The way Santa's so threatening towards her is unsettling, but the scariest has to be when Santa '''''BURIES HER ALIVE IN COAL''''' while she screams and Santa just laughs evilly! Imagine the thousands of toddlers and children that saw this and it was just their first time meeting Santa.
** Not to mention that the Santa here was voiced by ''[[Creator/TonyJay fucking]]'' '''''[[WesternAnimation/TheHunchbackOfNotreDame Frollo]]'''''. And [[WesternAnimation/ReBoot Megabyte]]! To be fair, he's also Dr. Lipschitz, but without the goofy accent he puts on like with that character, he just sounds terrifying.

* The episode "Ruthless Tommy" [[AdultFear where Tommy is freakin' kidnapped]], and the adults have ''absolutely no idea'' he's gone until ''hours'' later, [[PitytheKidnapper when the crooks can't handle it and decide to return him]].
* "The Sky is Falling". It was not common for a kid's cartoon to tackle the issue of the apocalypse at the time.
* "Grandpa's Bad Bug". Imagine breaking a promise (and lying to hide what you did), then waking up to sights like ''a bunch of bugs crawling all over you''. Sure, we clearly see that the babies brought them in, and it was out of good intentions (wanting some good bugs to fight the "bad bug" out of Grandpa's system), but he had no way of knowing that. When you look at it from his point of view, there could have been something supernatural going on, for all he knew.

* The episode ''Special Delivery'' has Tommy exploring the post office, and goes through the chute to the dead letter office, on a conveyor belt leading to what is best described as the junk-mail pit of death, complete with the skeleton of a postal worker who had apparently fallen in years before. [[note]] However, the skeleton could have just been an old Halloween prop. [[/note]]

* In ''"Chuckie vs. The Potty"'', Chuckie has a nightmare where his potty-training is like death row, complete with screams of ''"Not the chair! NOT THE CHAIR!"'' Just to make it even creepier, the sequence features ''all'' of the babies--Phil and Lil appear as the prison guards that march Chuckie to the chair, and Tommy is an [[DissonantSerenity eerily calm]] priest who tries to console him. The bit ends with Angelica as the executioner, who pulls off her mask to reveal one of the creepiest SlasherSmile and EvilLaugh combinations EVER, and flushes Chuckie down a giant toilet.

** "HERE I AM! DON'T BE BLUE, AND I WILL SING A SONG FOR YOU!" (to the tune of 'London Bridge') "LAAA, LA LA LA LA LA LAAAA, LA LA LAAA, LA LA LAAA, LA LA LA LA LA LA LAAA, LA LAAA LA LA!"
** More to the point, how could Stu ''not see'' how terrifying the doll was? I mean...babies cry when around it and ''hide when it's there'', and even Didi seemed to find it disturbing (or at least, irritating).
** It might just be that Mr. Friend isn't meant for infants. Angelica, a toddler, gets her own Mr. Friend and loves him, and is completely baffled by the sheer horror the babies feel around him.
** Even with that in mind... one of the Mr. Friends seemed almost... sentient. What with how it hid from Tommy’s parents and was able to “conveniently” wander into the other Mr. Friends and activate them as an army that JUST SO HAPPENED to find the Babies... innocent child’s toy that Tommy and his pals were simply too young for? Or something... otherworldly?
* Another episode was played out like a sci-fi movie with the parents as aliens. It turns out to [[AllJustADream be a dream]]... and it ends with Angelica ''stranded on a desert planet trying to dig for food'', [[MindScrew after Tommy wakes up]].
** Just before that the Babies had commandeered the space ship and [[HurlItIntoTheSun go flying into the sun!]]
* Chuckie's {{nightmare sequence}} in Spike's doghouse at the beginning of "In The Dreamtime" where he approached Tommy (who was facing away from the camera) and tapped him on the shoulder, only to have Tommy's head rotate to reveal a [[NightmareFace creepy clown face]] and declare in the most disturbing voice ever, "I'm not Tommy!" before laughing insanely while the background music that plays [[ScareChord lets you know something's wrong]].

** Chuckie's second dream, while not nearly as memorable as the above sequences, still is rather unsettling at some points. It starts off normally, the house gets full of AlienGeometries, at which point the background music becomes distorted, and the babies enter a large hall filled with strange pictures of Tommy on the wall. Some of them are just goofy looking (such as a picture of Tommy with a stretched out neck), others are just...bizarrely creepy (among others, there are such things as a bunch of Tommy heads stacked on each other, a Tommy whose body is his head, a Tommy with ''six eyes'', etc.), to say nothing of poor Chuckie falling screaming into a void...
* There are moments of this in the episode "Real or Robots". It opens with Tommy and Chuckle watching a movie about a mad scientist plotting world domination with his robots. Stu quickly turns it off.
-->'''Mad Scientist''': At last, my experiment is almost complete. Soon I will replace every man, woman and child with my robots and take over the world! (''cackles maniacally'')\\
(''Tommy and Chuckie watch in horror as the mad scientist brings the robot to life via what appears to be a man via lightning power and then stands it upright by tipping the bed forward, as the robot begins to stand up it gradually starts to smile. As the robot begins walking toward a door, a boy opens the door'')\\

(''Just as Tommy and Chuckie are about to watch the robot grab the boy, Stu turns off the TV. The babies turn to face him and gasp.'')\\

(''Chuckie follows Stu, but Tommy stays behind. He turns the TV back on, and gets one last look at the movie; he watches in horror as the robot is carrying the terrified boy in his clutches'')
** In one of Tommy's attempts to prove his dad's a robot, he undoes his father's nightshirt to find "bolts that open his chest (relating this to the robot on TV, which had bolts where a man would have nipples). He then attempts to ''use his plastic pipe wrench to twist them'', which causes Stu to immediately wake up screaming in pain, and in turn scaring Tommy and Chuckie into screaming themselves. Yikes!

--->'''Chuckie''': Yeah. (beat) ...but what about ''my'' dad?! (ScareChord plays)
* In "Stu-Maker's Elves", Tommy and Chuckie had to go down to the basement to get a fly-away frisbee. The basement was creepy, but the real nightmare fuel was a creepy first-person view of Chuckie's memory of being spanked by the doctors. We see Chuckie being held upside-down with his [[UncannyValley freakishly malformed and tube-like arms]] dangling beneath him, flying around franticly, and the loud "SMACK SMACK SMACK!" coupled with Chuckie bawling. It's probably the most terrifying thing to ever happen in the series.
* The episode "Under Chuckie's Bed" where Chuckie gets a new bed to replace his crib and thinks there is a [[ThingsThatGoBumpInTheNight monster under there]] and imagines that it's talking to him. When Chuckie dares to peek under his bed for the monster he actually saw a dark, demonic-looking humanoid WITH AN ARM REACHING TOWARDS HIM. This image is pictured above, by the way.

-->'''Angelica''': "And they ''never'' saw little Barnaby Jones again....So remember there's only one place you can hide: Under the covers. And sometimes, the monsters can ''even find you there.'' (''flicks Chuckie's teeth and runs around singing'') ''Chuckie's gonna get eaten, eaten, eaten! Chuckie's gonna get eaten by the monster under his bed!''
** To make matters worse on both counts, the monsters in question had the exact same voice as [[WesternAnimation/AaahhRealMonsters Krumm!]] though that could be NightmareRetardant depending on who are.

** Chaz's psychotic dependency on puppets.
* "I love you, Boppo."
* The [[MonsterClown clown lamp]] in the episode "The Trial". No wonder Chuckie was terrified of it.

* The bull dog in the episode "Barbecue Story", specifically the part where Tommy and Chuckie are in the bull dog's yard searching for Tommy's ball and the dog growls at them, yanking so hard at its chain that it pulls against the dog house and ''[[SuperStrength pulls the dog house out from the ground nail by nail]]'' with the dog getting closer and closer to Tommy and Chuckie. Thankfully Spike comes along in a creepy voodoo mask of some sort and saves them.
** While not nearly as scary visually, the "monster dog" in "In the Dreamtime" almost ready to pounce on Chuckie the whole while he thinks he’s dreaming can be nerve wracking. And then Chuckie realizes [[OhCrap he ain’t dreamin’...]]
* Angelica's temporary HeelFaceTurn in "Angelica for a Day" can be creepy to some. [[TheUnsmile The smile]] on her face seems so forced and unnatural.

* Worst of all is Angelica's [[NightmareSequence would-be]] [[EnfantTerrible baby brother]] from the episode, "Angelica's Worst Nightmare". It begins with Angelica hearing a baby crying. She finds her parents fawning over the new baby, saying how "precious" and "adorable" it is while not knowing who Angelica is. After the mom and dad leave, Angelica talks to the baby, and, much in the same matter as Tommy and the gang, Angelica's new baby brother can talk. However, he's more like ''WesternAnimation/FamilyGuy'''s Stewie minus the evil humor and with a horrifyingly deep and raspy voice, and tells Angelica that this house isn't big enough for the both of them, and says that Angelica (the "old baby") should be gone permanently. Angelica tries to flee from him, but the baby keeps finding her, and growing every time there's an encounter between them. The dream enters its horrifying climax as Angelica's now [[AttackOfTheFiftyFootWhatever Godzilla-sized]] baby brother catches Angelica in her getaway car, wondering "what a toy car would taste like". It all ends with Angelica screaming, "No! Please, I'm your big sister!" with the baby replying, "WELL NOW YOU'RE NUM-NUMS!" and putting Angelica ([[ExtremeOmnivore car and all]]) in his dark cave-like mouth.

* The episode where they camp out in the backyard with Grandpa and he tells them about the Satchmo[[note]]Sasquatch, ''not'' the trumpet player[[/note]] is damn terrifying. The atmosphere of that episode was just so ominous.
* In the episode "Dust Bunnies", Chuckie becomes scared of dust bunnies. So scared that he has a nightmare where a giant, evil, slobbering rabbit drags him into the basement with its slimy ears, while he screams the whole time.

* In "What The Big People Do", Tommy and Chuckie have a dream about being grown up and going to work. All is well and good, until they are called into The Boss's office. They have to first walk down a hallway with giant pictures of past bosses and are thrown into the the boss's room by the carpet in the hallway. The doors slam shut, creepy organ music plays, and the entire room is enshrouded in shadows save for the boss' chair, which makes a [[HellIsThatNoise horrible creaking noise.]] The Boss is the adult version of Angelica, who threatens to have them "[[LargeHam FIREEEED!]]", and then flames shoot at Tommy and Chuckie from these two Reptar statues she has in her office. They flee while the the past bosses climb out of their portraits to stop them. Angelica calls in some creepy robot minions, and all the time insanely creepy music is playing while the angry-faced robots close in on them. Had to be one of the creepiest things in Rugrats ever.
** The ending lulls you into a false sense of security with Tommy reassuring Chuckie that being a grown up won't be that bad, and then, for no real reason at all other than scaring the crap out of every kid watching the episode, Angelica appears and says the following in such a creepy and horrifying fashion: "Oh booooyyyyys~... Time to play '''HOUSE!'''" Cue her face morphing back into the adult version, complete with a huge SlasherSmile, her EvilLaugh, Tommy and Chuckie screaming in terror and a ''hard'' cut to black.
** To a lesser extent, the sight of the Babies (an Angelica’s) heads on adult bodies can lead to some SERIOUS UncannyValley.

* In the aptly named episode "The Shot," [[AfraidOfNeedles Chuckie]] describes getting a shot to Tommy (who was going to get one that day), with images of a friendly-looking doctor morphing into a Mr. Hyde-like monster and thrusting a hypodermic harpoon at Chuckie.

* [[ItsAWonderfulPlot "Chuckie's Wonderful Life"]], where Chuckie wants to run away from home when his dad's CD goes missing, where he sees what life would be like if he never existed. What was both terrifying and depressing was when his guardian angel showed him Tommy's dark, grey house, with a beaten, dirty and sad Tommy playing in the trash cans. The dialogue is as follows: