FNAF

I’m listening.

You know how FNAF 4 works, right?

Kinda.

I'm sure Spinel goes to bed in DELUSIONAL, right?

I would plan that in the next chapter past the pilot, yeah.

So whenever she goes to bed, she has vivid nightmares about this version of Ultimo hunting her down in her house, but it only hides in darkness, and the house is VERY dark, so she has to use a flashlight to defend herself in her room with the flashlight, and she wakes up injured if it catches her

Gems can’t get physically hurt-

Oh, then she'll just have sleep paralysis where it taunts her for failing it's game

Better idea!

And it can appear is an illusion that constantly scares her if she doesn't get any sleep

Noice

Also you can use this image and crop it to only the head as it's expressionless