And then it talks to you. With an adult male's voice.
The eyes that replace every picture in the home after looping through the house several times.
On top of that, the looping eyes are accompanied by the entire hallway turning red, your vision blurring, and your character suddenly sprinting through the hall. The Unexpected Gameplay Change can be rather jarring.
As per usual for the series, disgusting bathrooms, complete with peephole.
The box hanging from the ceiling near the door. There's sounds of a distressed baby coming from inside and blood dripping down.
The voice of the murdered son (who sounds a lot older than ten) that appears afters the teaser, and how unphased by his own murder he seems to be. Even worse for those that paid close attention to the fetus in the bathroom after looking through the peephole... the same voice comes from the fetus in the sink, with the mouth moving in time with the words, strongly implying that the father had murdered his family because his wife had had an affair, with said fetus being the result.
Plus, he announces his desire to return, along with how he plans to bring "new toys".
Listen closely. During that part of the sentence, the voice changes to a more menacing, gruffer one.
It also switches from the sound of over a radio to that of someone right next to you.
The radio that replays the broadcast of the murdered family, even when it's off. Plus, after looping through the house several times, there's a voice that speaks to you while the original broadcast is going on.
The talking paper bag. It is describing the situation you currently find yourself in: "I walked. All I could do was walk." The second part it mentions, "finding a me that wasn't me, walking in front of myself" doesn't happen to you...but this might be Kojima breaking the fourth wall, describing a third-person game like most Silent Hills (and the fact that completing the demo lets you see the protagonist). "The only me is me. Are you sure the only you is you?" Hideo Kojima, making standard video game conventions creepy, somehow.
The sounds of a man crying is really creepy.
The peephole in the bathroom on its own is scary enough. But when you're in the bathroom, if you line yourself up properly, you can see light shining through it. Later on, when the house starts falling apart, you discover it was hidden behind one of the now fallen pictures in the hallway, meaning while you were in there earlier, someone or something else had been looking through it. Worse still is the dialogue that plays when you look through it.
The graphical glitches that occur in the teaser can really mess with a player's head. One of them may even result in a black screen with the "Fix this bug before the final game comes out!", in various languages.
And the ghosts themselves. In addition to the one that will sometimes attack you, there is one ghost that will stand in the middle of the hallway, impeding your progress. Do you try and approach it or wait for it to go away?
If you look up at the balcony above the front door, sometimes you'll see a ghost looking down at you.
Sometimes you can also see find a ghost standing in the window or behind you in the bathroom mirror.
The worst thing about the one jump scare (that is repeatable) in this game is that it is calculated to work on you even when you know it's coming. You will notice you have an extra set of footsteps when you walk—this usually happens when one ghost speeds past you with a shriek, indicating that it's right behind you nownote or maybe when the radio tells you to turn around right now. Turn around, expecting to get jumped...nothing. Then five seconds later, right when you exhale, BOOM! Horrible twitching corpse in your face, choking the life out of you. After you fall to the ground, the camera shot lingers and twitches a bit, with sounds implying you're getting chewed on. Then you wake back up in the black room...
If you look at the walls near the loop door, you can find handprints. They look like they might be dried blood, too.
One of the photographs in the hallway is of a happy husband and wife. One of the puzzles in the game involves the woman's right eye getting poked out, which is creepy enough, but when you do this, her other eye becomes small and completely black.
Even the radio message of how the family is murdered is creepy, especially since it's more realistic. The creepiest part is the description of how the daughter was killed: she hid in the bathroom, and her dad coaxed her out, saying it was all a game, and then shot her.
The graffiti on the walls. "There is a monster inside of me", "I can hear them calling me from hell"...
And sometimes the letters move to a different place when you're not looking.
Even the game's subtitles can mess with you. While the subtitles say that the dad hung himself with a garden hose, a muffled voice can be heard saying that he hung himself with an umbilical cord.
The recently released TGS trailer for the game's concept is not interactive, but it does give us a taste for what kind of horror we're in for. And boy are we in for a lot.
You're walking through the hallway as usual, and the radio starts randomly spouting some weird messages. And then... "Look behind you. I said, look behind you." Shit just got real.