The Legend of Zelda: Ocarina of Time. More specifically a mini-boss.
I dunno what they're called, but you encounter one as a kid, when you go inside of the well. You fight it to get the Lens of Truth, and you see it again as an adult to get the hover boots (I think).
When you walk into the mini boss room, theres 4 arms poking out of the corners, and nothing happened until you go over to one of them. When you get too close, the arm grabs you, reveiling terrible pointed red nails on the hand, and a monster that come out of the ground. It has kind of a wide torso, with a super long neck with its head pointing up. It also creepy arms on it. It shuffles its way over to you, and you look at its horrible pale skin with red blotches on it. It comes over, and leans its unnaturally long neck down, showing you its face. It opens its mouth extra wide, to bite you...
ARG. I hate that thing so much. It creeps me out to this day. And when you kill it, its jaw kind of unhinges and it just sits there in a...super creepy way. Uuggghhh.