The element of the unknown is a big factor. In these stories, animatronics usually act in unexpected ways. They might move when they're supposed to be shut off, or their expressions change in a spooky manner. Also, the settings where they are often found, like dark and empty places, add to the scariness. For instance, an animatronic in an abandoned amusement park at night is really scary because it's not a place where you expect things to come to life.
The number 666 is often associated with the devil in many cultures. So, when it's part of a story, it immediately gives a sense of the presence of evil. For example, if a story involves a place marked with 666, our minds automatically think of it as a cursed or haunted location.
The use of the supernatural is a big factor. There are ghosts, curses, and otherworldly creatures. These things go against the normal laws of nature that we are used to. When a character in the story is haunted by a vengeful spirit that can pass through walls and cause harm, it sends shivers down our spines. The story about the poltergeist that throws things around and terrifies a family is a great example of how the supernatural creates fear.
The unknown element makes them scary. In really terrifying stories, often there are things that are not fully explained. For example, in a story about a haunted doll, we don't really know how it can move on its own or why it seems to have a malevolent presence. It's this mystery that sends chills down our spines.
The unknown elements often make them scary. When details are left to the imagination, our minds can create the most horrifying scenarios.
The anonymity. Since 'Momo' is often an unknown entity, it creates a sense of mystery and fear. You don't know who or what it is that's threatening you.
The time limit. In just 30 seconds, it has to build up the fear quickly. There's no time for long, drawn - out explanations. So it hits you fast with something spooky, like a sudden appearance of a ghost or a strange noise.
Slenderman often appears in isolated and spooky settings like dark forests or abandoned places. These locations already have an air of mystery and danger. When he shows up there, it intensifies the fear. Also, in the stories, people who encounter him usually feel a sense of helplessness. There's not much they can do against this strange and menacing figure, which is quite terrifying.
The isolation in rural areas makes scary stories more terrifying. There are fewer people around, so if something strange happens, help is far away. For example, in a spooky rural story, a person might be alone on a long, dark country road and encounter something unexplainable. There's no one to turn to quickly.
The unknown factor makes nures scary stories terrifying. Nurses are supposed to be in a place of care, so when something spooky happens, it's unexpected. For example, in a hospital where people are supposed to get better, the appearance of something supernatural is very frightening.
The enclosed space of a bahroom makes it terrifying. You're often alone in there, so any strange noise or sight feels more intense as there's no easy escape.