Favorite monster that scared you to death

[Dickey]

Was just wondering what everyones favorite monster was; the one that scared the crap outta you when you were younger. From 1958 to this day, the one monster that scared the living bejeezus outta me & still does when I think of it, is the "Id" monster from "Forbidden Planet". I think the scariest thing about it was that it was invisible, and when I saw those footprints in the sand...whooo boy! I just KNEW it was in my closet as a kid!

https://youtu.be/0UrG3Fx69Ws

[Sculpt]

Chasing around the little guys in the dark with a flashlight scared me as a kid when I watched Don't be afraid of the dark.

[The Shroud]

Not really my favorite monster, and technically not a monster, but that green alien baby from V (the original tv series). That baby creeped me out when I was a kid!

As for a movie monster in my closet, a mummy.