Please don't list this on a work's page as a trope. Examples can go on the work's YMMV tab.
Nightmare Fuel: Everyman HYBRID
Healthy Eating has the strange figure in the window and Slendy suddenly appearing, waving his head back and forth before telekinetically slaming a door shut... And when they reenter they find Slendy gone... *shudder*
Introduction looks like a legitimate fitness video the whole way through. Then you reach the last couple seconds, and anyone who's seen Marble Hornets prepares for all new horror.
The first half of "I'm Okay" has Jeff eerily recounting how he was left behind in a burning school as a kid, and is suddenly interrupted by more audio distortion before the camera dies.
The letter in "Reunion." “Who are you, my dear friend, to reach someone like me? I look forward to our reunion in Hell. Otherwise, I fear my warnings have fallen on deaf ears. The sight of his black eyes, his markings, this face not human, now has claimed another one of us. I’m sorry I was too late. – Linnie.”
Just about every one of The Rake's appearances, but in particular the latest in Jessie. After being pushed out the window of the second story, it attacks Vince and we get an up-close look at it.
The concept of the hidden videos. Something is putting videos on the channel that the boys are unable to see, no matter how many times the links are sent to them. Massive increases in Paranoia Fuel right there.
How about the hidden pieces? There are videos uploaded by the boys but with bizarre segments that they can't see. Such as time distortion or bizarre text.
In "The Hidden Videos", a fan sends the boys a compilation of the hidden videos. When they try to watch it, the video turns to static and they fall unconscious. Whoever is responsible, they really don't want them to see the videos.
"Twenty four months". After a glimpse of just how ground down the guys have become emotionally, we get treated to a lovely montage put together by our old friend HABIT, who took the liberty of giving it a peppy soundtrack promising that "the best is yet to come, come the day you're mine."
To elaborate: Vinny and Jeff find a new lead in Dr. Corenthal's wife, and Jeff goes to pick Evan up so they can follow up on it. When Jeff arrives at Evan's house, he receives a text message telling him to go around to the back door for "a surprise". He enters the house and finds it dark and deserted, save for the faint sound of Scissor Sister's "I Can't Decide". He follows the music to the basement, where he gets knifed in the gut by an unseen attacker. He tries to run for the back door, only to find it blocked by Nick, HABIT's previous host; he makes it to the front door in time to put his hand on the doorknob...before being grabbed by a psychotically grinning Evan.
DON'T WORRY YOU WON'T BLEED OUT :) / TOLD YOU NOT TO WORRY :)
"He's got you, man."
Not Dead Yet has plenty. The fans told Vince to check up on Jeff and Evan because of the second half of the above video (which Vince claims he can't see). In the basement he finds a pool of blood, a chain, and Jeff's shoes. He prepares to leave when he hears something, turns around, and the Slender Man leans in, wrapping his fingers around the wall. Sweet dreams.
As if to make up for the gaps between updates, The Property puts Vince through Silent Hill-levels of mindfuckery. It starts with him finding different rooms from his friends' houses somehow welded together. Then he hears ominous footsteps and the sound of children giggling, prompting him to hide behind a shower curtain as the giggling turns to crying, the footsteps get closer, the video distorts and the bathroom door starts rattling. Then, just when that dies down, the Slender Man shows up and telekinetically drags him down a flight of stairs. And that's just HALFWAY THROUGH.
:D, which depicts what appears to be HABIT-in-Evan and an anonymous camera man telling a captive Jeff exactly how badly they're going to kill him. The video is interspersed with what appear to be shots of Jeff being stabbed to death and writhing in pain while covered in blood.
Next. Evan leads a group of random, HABIT-possessed (or Slendy-possessed) guys into Daniel's house, then leads Daniel downstairs and strangles him. We also have something really disturbing going on with Evan and Steph, and what appears to be Evan threatening her and their baby. To make matters even worse if you look closely at Evan whilst he is talking with Steph, you can see that not only is he holding their baby, but his hands are drenched in blood. It's never made clear whether this is Steph's blood or the baby's.
After (possibly) months of being tortured by HABIT-possessed Evan, Jeff is still alive. And in the video's final act, Evan douses him in gasoline and sets him on fire.
Even better: when Evan disposes of the dead body in a nearby forest his casually walks off-screen, saying "He's all yours, man". The camera pans to the left and reveals none other than the Slenderman!
That's not Evan. He's completely possessed by HABIT at this point. Also, he's not talking to Steph in that scene. He's talking to Evan. Remember that the inHABITed are fully aware of their actions while possessed. He says that he knows Evan wants to die, but he's not going to let that happen until he completely breaks Steph and forces Evan to watch.
WAKE UP. Just in case you thought that HABIT was in any way not a monster, we get this lovely line courtesy of uninHABITed Evan:
Evan: "I can remember my baby... I can remember her bones against my teeth..."
That's not even getting into the more disturbing implications: after holding his own intestines in his hands, Evan found himself revived in perfect health, without a single scratch or mark on his body; no matter what he does, the forces at work refuse to let him die go until he murders Vinny.
Even worse, HABIT seems to be growing more powerful: his signature purple distortion (which was subtle before) is almost omnipresent, and his voice has now acquired a demonic, reverberating undertone (implied to be HABIT's real voice). There are even moments where he appears to speak without using Evan's body.