The scariest part could be the element of the unknown. You don't know why he is chasing you. Is he a malevolent spirit in human form? The large size of the 'big black man' also adds to the intimidation factor, making it seem like there's no escape as he looms over you in the context of a ghost story.
I would try to find a place to hide. Maybe a small, enclosed space where he couldn't reach me easily. Like a closet or a small cellar.
The sudden appearance of the ghost. Just imagine you're playing basketball, and all of a sudden, a ghostly figure appears out of nowhere. It would be really terrifying.
For me, it's when the tickle is accompanied by a cold breeze. In a ghost tickle story, the combination of the unexpected tickling and the cold air gives the impression that a ghost is nearby. It's that unknown presence that makes it really terrifying. You start to think that there's a spirit that has the power to touch you in a way that defies the physical world. And as the tickle continues, your mind races with all the spooky possibilities. You might even start to feel that the ghost is trying to communicate or play with you in a very creepy way.
The scariest part could be if the small hand starts to move things or touch people. It gives a sense of the unknown and the violation of personal space in a very spooky way. For example, if it touches the main character while they're alone in a dark room, that would be extremely frightening.
The scariest part could be the unknown. For example, when there are strange noises in the dark but you can't see what's making them. Just like in the Rusty Rivets world, if you hear a clanking sound in an abandoned building and you don't know if it's a friendly robot or a spooky ghost, it sends shivers down your spine.
The scariest part could be when you're alone and the bad connection causes something strange to happen, like a sudden appearance of a ghostly face on the screen. You feel so isolated and helpless, not knowing if it's real or just a glitch because of the bad connection.
The scariest part could be when the elf first sees the ghost up close. Just imagine, the elf is sitting there on the shelf, and suddenly, a pale, translucent figure appears right in front of it. The eyes of the ghost are hollow, and there's an icy coldness in the air. The elf is too scared to move, and it feels like time has stopped. That moment of direct confrontation between the small, cute elf and the unknown, spooky ghost is really terrifying.
The scariest part could be when the clown first sees the ghost. For example, if the clown is just sitting there, thinking everything is normal, and then suddenly a pale, translucent figure appears out of nowhere. The clown, who is supposed to be the protector of the children, is now faced with a supernatural threat, and that sudden shock of the unknown is truly terrifying.
The scariest part might be when there is a sudden and unexpected pain in your big toe with no obvious cause. Like in a horror story where a person is just sitting quietly and suddenly feels a sharp pain in their big toe as if it's being cut or bitten, and there's no one around and no explanation for it.
The spaghettification process. Just the idea of your body being stretched out like a long, thin piece of spaghetti is terrifying. It's a slow and painful - looking death as the gravitational pull near the black hole is so extreme that it elongates any object approaching it.