These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
I was a 17 year old girl when I was killed. I was brutally murdered in the woods the night of a party at my friends. It was Slenderman’s woods. He saved me. Brought me back and I became a creepypasta.
Complete Monster: There have been a few examples through the many Creepypasta stories:
The Aika Village tale brings us The Villager, the normally kindhearted if a bit naive protagonist of the Animal Crossing games who is meant to be an avatar of the player. However, this iteration of the Villager is more bloodthirsty than most. It all starts when he returns home from a seemingly normal day. Tom Nook is waiting and demands payment. The Villager takes a glance at an axe hanging on the wall and grabs it, quickly slaughtering Nook. The next couple of days, Villager slaughters every single innocent bystander of the village including Reese, Cyrus, Mable, Labelle, Gracie, the fortune teller, The Nooklings, K.K. Slider, the happy go lucky villagers like Bob the cat, and even drives Sable to suicide by showing her Mable and Nook's corpses all done without remorse or pity. This tale was inspired by a village created by a Japanese gamer and one must wonder how someone can make a game as innocuous as Animal Crossing into Creepypasta incarnate. Nothing in this tale is played for laughs and Villager is never given a mitigating Freudian Excuse or any reason for us to feel sorry for him.
NES Godzilla Creepypasta: The Hellbeast, better known as Red is a shapeshifting, sadistic demon taken the form of a character in a Godzilla video game. After the player of the game, Zach, begins to get suspicious about the content in the game, Red reveals himself as a sentient monster within the game itself who directly threatens Zach. The Hellbeast taunts Zach that his girlfriend's suicide was his doing, and that he is now torturing her soul. From there, Red engages in a brutal massacre, starting with the characters in the video game itself, then the angelic figure guarding Zach and the other figures aiding him, and ending with an attempt on Zach's life in the final battle. He paralyzes Zach and forces him to play the game and beat him or else die and have his soul trapped in the game.
Play With Me: Out of all the supernatural monsters in the Creepypasta mythos, one human stands out in Johnny the uncle and murderer of Sally Williams. Johnny is a pedophile staying at Sally's house, and paints himself as a nice and fun guy after his divorce, which he says gives him more privacy. On the first night of the stay, Johnny molests Sally, and gets mad at her when she tries to tell her parents, even when they didn't believe her. Without a second thought, Johnny takes Sally to an abandoned playground where he rapes and murders her. Before doing the deed he tells Sally it's her fault for not "playing the game" right. Cruel, perverted and sociopathic, Johnny is nothing more then a monster taking advantage of his family's trust, and won't hesitate to hurt them.
Squidwards Suicide: This Creepypasta has the nameless serial killer. While we hardly know anything about this individual, we can tell quite clearly from his actions that he is psychopathic. When the protagonists of the Creepypasta were watching the lost episode of Sponge Bob Square Pants, they are immediately bombarded with a series of photos in which an unknown man was shown gruesomely murdering three children who were exactly the same age. The first photo displayed the corpse of a young boy who had his entrails removed from his stomach, and the second photo displayed a young girl who was also killed in a similar fashion. The third photo, however, was different. In this photo, you could see the man pull the young boy's intestines out through a stomach wound, and the episode proceeded to focus on that one photograph. When the police investigated the lost episode, they couldn't find any records of any of the children seen throughout the episode, nor could they find a lead. It is presumed that he was never caught.
The Tails Doll is a serial killer monster who is said to reside in Sonic R. Upon being summoned with a curse, the Tails Doll more often than not comes out from the game to murder said summoner in a gruesome fashion. It drives its victims to trauma and suicide by murdering their family and friends, and often slowly turns its victims insane with the song "Can You Feel The Sunshine?" Other depictions of it have it enslaving the summoner or flat-out coming to them and killing them, even if it hadn't been summoned with the curse beforehand. Unlike other Creepypasta beasts such as the Rake or the Slender Man who's actions only serve to make them enigmatic, there's no mistaking the Tails Doll for anything less than a brutal, sadistic nightmare of a doll.
Creepy Awesome: Quite a few monsters 'pasta authors dream up can turn into this.
Critical Research Failure: "There was no text asking me to switch out." from "Snow on Mt. Silver". The player had only Typhlosion left at that point since rest of the team got frostbitten to death, of course there would be no text for switch out!
Abandoned By Disney's writer apparently didn't know Disney would never dream of calling their costumed characters mascots. As any Disney nerd worth their salt knows they're cast members. It's a small detail, but one that can break willing suspension of disbelieve right before The Reveal.
Draco in Leather Pants: Jeff the Killer, all the time. In fact, it's actually a little unbelievable how many people unironically fangirl over creepypasta monsters, to the point of making fanfiction where their O Cs hook up with them. Though they still tend to keep the characters creepy.
Fridge Horror: These stories can sometimes be composed of this. In the case of Pokemon: Scary Black and Pokemon: Lost Silver, one must wonder who would be sadistic enough to make such hacks, and why they would distribute them on plastic cartridges rather than on the web.
Made even worse by the fact that the cartridges were apparently old enough to predate the technology required for them to be hacked to the extent that they were and put on a cartridge from someone's home. So either someone at Nintendo has an incredibly sick sense of humor, or the explanation is of a more... supernatural nature.
The story "Abandoned By Disney" has the narrator discovering, in a previously locked room in an abandoned resort, the corpses of the employees and the...thing that killed them. He runs and escapes with his life, but he makes no mention of having re-locked the door. Whatever was in that room, may have just escaped into the world at large.
Hilarious in Hindsight/Harsher in Hindsight: The events of Dead Bart have been compared to the Family Guy episode "Life of Brian", which starts off as a fairly normal episode of the show only for it to spiral into the death of a beloved character, with the rest of the story dealing with the characters' reactions to the tragedy.
A few years after Squidward's Suicide Nickelodeon would go on to release an actual SpongeBob SquarePants episode called "Are You Happy Now?" where the reoccurring joke is Squidward is depressed and looks like he might commit suicide (but in the typical Getting Crap Past the Radar way Spongebob is known for of course). It's actually a theory that someone on the writing staff did it on purpose as a nod to the Pasta.
Critics of Spongebob say that the show has gotten too dark and mean-spirited in recent years. Some joke that the writers read creepypastas and decided to make official episodes like that.
The premises of some creepypastas may unsettle audiences until further detail of the pastas is given, as in "Mereana Mordegard Glesgorv" where the absurd and overly-dramatic detail that the viewers of the video gouged their eyes out THEN mailed them to Youtube's main office is given.
The Creepypasta Wiki has a section devoted to trollpastas and other poorly-written tales. WHO WAS PHONE?
The Epic Rap Battle between Dead Bart and Squidward's Suicide lightens the scare factor almost instantly.
This is par for the course in video game and lost episode pastas. Whatever the story does right, it doesn't change the fact that you're basically reading a Dark Fic of a silly, idealistic, and all around nonthreatening work like Pokémon, My Little Pony or SpongeBob SquarePants. If, on the other hand, the source material is serious and cynical, then people are already expecting something dark, which is a problem since these pastas typically rely on Surprise Creepy. It's no coincidence that the majority of entries on the Trollpasta Wiki fall into these sub-genres. Pastas about an original Show Within a Show tend to fare better, as they are not burdened with the reader's expectations of other stories.
"Abandoned by Disney" and, even moreso, its sequel "Room Zero", are this for anyone who's been to a Disney park. "Room Zero" is the most paranoia-inducing, between the "author's" descriptions of being followed and finding Mickey-Mouse silhouettes everywhere, the "corpse disposal" procedure, the gascots, the eldritch happenings on the waterslides, and the implication that Disney had an old woman murdered for talking about one of their darkest secrets. The crowning moment of Paranoia Fuel, however, has got to be the big reveal: there's a bomb shelter under Disneyworld, sealed off and filled with a park's worth of long dead patrons as well as...something, possibly the demonic force responsible for the events of the first story...right under everyone's feet. Even worse, it's implied that they're still haunting the park, and are not only responsible for the horrors in both stories but may be cursing the entire Disney corporation.
Kids in the Dark, mainly because you never know anything about what was making the noises, why it was making the noises, or why it was climbing into the narrator's bed at night for comfort. Actually, basically anything by Slimebeast will probably count.
Jeff the Killer's origin story may qualify, as well. He may be insane and murderous, but remember: he's human, and if the story is any indication, he's just a kid. Think about it. All of that happened to a child.
Experiment 84-B. You'll never feel the same way about the Slenderman again.
A lot of the theories for famous cartoons, which usually either have a character in a coma or hallucinating all the events, or the creator made the show off of someone who died.
Squidward's Suicide may be horrifying, but it can also make you feel horrible for poor Squidward.
The mutilated corpses of children later on in the story.
Laughing Jack is quite possibly the biggest case of Adult Fear in any Creepypasta ever.
Long story short, Laughing Jack is a entity who horrifically kills children, and at the end of the story, he mutilates the narrator's child (who was still alive afterwards) and the titular Jack tricks the mother into killing her son, which results in her getting institutionalized.
The prequel The Origin of Laughing Jack is pretty heart wrenching as well. It turns out he was a cosmic entity sent by a guardian angel to be friends with a lonely boy named Issac, and was to adapt with Issac's personality. After accidently killing the neighbors cat, Issac was sent to a boarding school, but promises to reunite with Jack one day. Jack spent years waiting for Issac, who had forgetting him, and in additional becoming a Serial Killer. When Issac and Jack reunite, in a combination of resentment, and adapting to Issac's new love for violence, Jack tortures Issac before killing him. And when it finally ends...
As his life bled out on that cold wooden bed, Isaac’s life flashed before his eyes. He saw his mother, his father, the boarding school, his victims, and the last thought that fluttered through his mind, was of that very special Christmas where he woke up to find the beautifully hand carved wooden box that contained his very first friend... There are rumors that when the police finally found Isaac Grossman’s rotten maggot infested corpse weeks later on Christmas Eve, that even though his face had been bashed and torn to bits… He almost looked... Happy.
The story Play With Me is depressing too. It's about a girl named Sally who is molested by her uncle, and the fact her parents pass it of as a nightmare, does nothing to stop her uncle from abducting, raping and killing her. What else is Sally's ghost doesn't become evil as a result, just a hurt ghost of a innocent little girl.
Cure For Cancer is a truly twisted love story that is equal parts reprehensible and heartbreaking.