I think the scariest part is when the friends realize that they are not alone in a supposedly deserted place, but the 'company' they have is something malevolent. It could be a feeling of being watched and then seeing fleeting glimpses of a figure that shouldn't be there. This builds up the horror as they try to escape but the entity seems to be everywhere, and they are helpless against it.
In a friends horror story, the sudden disappearance of one of the friends can be the scariest. It leaves the others in a state of confusion and fear, not knowing what has happened. And as they search for their missing friend, they encounter more and more terrifying things, like strange noises or signs that something really bad has happened to their friend.
For me, the sudden appearance of the menacing stickman in the dark corners is the scariest part. It gives you that jolt of fear.
The scariest part for me is the animatronics. They look so creepy with their dilapidated appearance and their sudden movements in the dark.
The unknown origin. If you can't remember how you got a hickey and it starts to have strange symptoms, like changing color or shape, it's really scary. It makes you wonder what kind of force or entity caused it.
Perhaps the scariest part is when the saffron, which is usually associated with beauty and luxury, turns into a source of danger. Like in a story where saffron powder is used in a voodoo - like ritual against someone. The person starts to have hallucinations and feel a strange presence every time they are near saffron, which was once a normal and pleasant thing in their life.
The scariest part could be when the donuts start to come alive. Just imagine you're sitting there with a plate of donuts, and suddenly they start to move and show signs of life. It's a total violation of what you expect from a donut, and it would be really terrifying.
The scariest part could be when the piano starts to play on its own. Imagine you are alone in a dark room and suddenly the piano keys start moving and a strange melody fills the air. It gives a feeling that there is an unseen entity present and it's using the piano to make its presence known.
In my opinion, it's when the power goes out in the pizzeria. Without power, the security systems fail, and the animatronics can move freely. The main character is left in the dark, not knowing where the animatronics are or when they will attack. It creates a sense of total helplessness. For example, in a story where a guard is trapped, he can't see anything, and all he can hear are the creaking and groaning of the approaching animatronics. It's a moment of pure terror.
The scariest part could be when the dinosaur suddenly appears out of nowhere. For example, in a story where a group of hikers are walking through a forest that used to be a pre - historic site. They think they are safe, but then a velociraptor jumps out from the bushes right in front of them. There is no warning, just sudden danger.
For me, the scariest part is losing code. When Eclipse crashes and doesn't save your work, it's like a punch in the gut. All that effort gone in an instant.
In a Coneheads horror story, the scariest part could be their intentions. Since they are so different from us, we don't know if they are friendly or hostile. They might be there to do something truly evil, like steal people's souls or bring a great curse upon the land. The mystery of their motives is what makes it so terrifying.