Creepypony

Sunny stepped into the portal and saw stars. She blinked a few times before she could see the darkness fully. Wait, here. She had a flashlight next to her hoof. She flicked it on and held it with her mouth.

"S**T!!!!" Sunny's curse made her drop the flashlight. She was in  freaking Slender!! This was bad, really bad. Sunny wasn't a gamer, that was Star's job. She was the one who watched videos of the games, and never really played them.

Terrified, she picked the flashlight up again and began to walk. Her wings began to tremble when the music began to kick in. She almost had a heart attack when she saw something white flash by in the corner of her eye. Sunny looked closer and realized it was a note. She trotted over to it and picked it up. It read, 'Always watches...No eyes...'

Sunny put it in her mane and began to walk some more. All of a sudden, loud booming was heard. It wasn't really fast, but slow enough to scare the hell out of Sunny. She started trotting faster, then found another note.

Eventually Sunny had six notes. She knew from gameplays she needed to find eight. Man, this is easy. Other than all this creepy music and loud booming, I don't see what's so scary about this game. , She thought.

After a minute of praising her awesomeness, Sunny came to a bathroom. Thinking that she was fine and feeling the urge to relieve herself, she went inside just as a white pony in a tuxedo stepped in behind a tree not far from the entrance.

On the mare side of the restroom, Sunny found a note. It read, 'Behind you', which confused Sunny. That wasn't in the game...

Sunny turned and started galloping out of the water closet, but was halted by slight static blurring her vision. She stopped and rubbed her eyes, then pressed on, which only made it worse. Sunny turned to her right and the fuzziness went away a little. She walked that way until the static came stronger, then moved to another direction. She repeated this until she had clear vision.

Sunny kept her head down after that. Eventually she was brave enough to look up, and found herself in front of a note. She picked it up. When she looked closer, the writing was different, more elegant and in cursive. It read:

Foolish Humans. You play my games, you give me life. You are haunted by me. Some love and worship me, others fear and hide from me. But I am everywhere. I am the wind when you are walking home alone. I am that sound in the middle of the night when you lie awake in bed. You can not hide, for I will find you. You cannot run, I catch you when you tire. You can not fight, I will be there in your time of fear. I am horror. I am death. I am God.

Sunny dropped the note in her hair. She noticed too late the fuzziness around her eyes before a white pony with a wide, gaping mouth filled her vision. She screamed at the feeling of her soul being sucked out of her and into Slendermane. His tuxedo protruded shadowy tentacles that held her down while he fed on her life's existence. Sunny rolled her head to the side, now an old mare, and saw a familiar white unicorn laughing in the distance. Before Sunny closed her eyes, she sent her worst curses she knew at her once-beast friend, Vinyl Scratch.