One of the scariest Ultra Sun ghost stories involves a mysterious trainer that appears randomly on certain routes. This trainer has no name and when you battle them, their Pokemon are all ghost - type with abnormal stats. After the battle, the trainer disappears without a trace, leaving the player with a sense of unease. It's as if they were a spirit from another dimension, passing through our world briefly.
I'm not entirely sure specifically as there could be a variety of interpretations. But generally, it might involve spooky or mysterious events and characters within the Ultra Sun and Moon universe. Maybe it includes tales of strange Pokemon encounters that seem ghost - like or haunted locations in the game world.
A really scary anonymous ghost story involves a bridge. It was said that a young girl had jumped off the bridge to her death many years ago. Since then, drivers at night would sometimes see a girl in a white dress standing on the edge of the bridge. When they stopped to help, she would disappear.
A really scary one is about a hotel room. Guests would wake up in the middle of the night feeling a cold presence. They would see the imprint of a body on the bed next to them, as if someone was lying there. It was said to be an entity that met a tragic end in that room.
A student in a dorm once woke up in the middle of the night to see a white figure floating above his roommate's bed. He was so scared that he couldn't move or make a sound. When he finally managed to turn on the light, the figure was gone and his roommate was still sound asleep.
The scariest I know is of a teacher who hanged herself in the school attic. Ever since, people would hear strange sobbing sounds coming from there. If you go near the attic during the night, you can sometimes see a faint silhouette of a woman swinging slightly, as if still in the act of her final moments.
In a particular mine, there were reports of a ghostly miner who would push people. Workers would suddenly feel a shove when they were alone in the tunnels. It was thought to be the angry spirit of a miner who had been mistreated during his life. The atmosphere in that mine was always filled with fear, and many miners refused to work there in the end.
The scariest I know is of a pup in an old, abandoned house. A group of kids exploring the house heard the sound of a pup crying. When they followed the sound, they saw a shadowy figure of a pup. But when they got closer, it disappeared. They later learned that a pup had died in that house decades ago and its spirit still haunts the place. It's terrifying because it makes you wonder what else might be in that abandoned house.
One of the scariest is the story of the hound of the moors. It's a large, black dog with glowing red eyes. It is said to roam the moors at night, and if you hear its howl, it's a sign of impending doom. People have reported seeing it chasing after lone travelers, and those who have been chased say they feel an intense cold and fear.
The story of the Black - Winged Demon Ghost. It's said to have huge black wings and a face so terrifying that just one look can paralyze you with fear. It haunts an old castle and preys on those who enter uninvited.
The scariest mummy ghost story I know is about a mummy that was found in a hidden tomb. When a young explorer found it, he took a small relic from the mummy. That night, the mummy's ghost visited him in his dreams, demanding the relic back. Every night, the dreams got more and more terrifying until the explorer finally returned the relic.