Demonic Cat from The Marvelous Misadventures of Flapjack
Cats are supposed to be cute, right? Not according to The Marvelous Misadventures of Flapjack. During the episode “Who Let the Cat Out of the Old Bag’s House?” Flapjack finds a white cat and tries playing with it. Sounds pretty normal until camera pans in on its face and you see this:
With hollow black eyes, razor sharp teeth, and an eerie moan replacing its meows it looks like something out of a creepy pasta. It’s not overly disgusting or gory, but looking at it for too long does give you chills.
Arnold’s Nightmare from Hey Arnold!
Compared to other Nicktoons at the time, Hey Arnold! was pretty tame. But there’s a moment during the episode “Part-Time Friends” that’s still haunting. After having a fight with best friend Gerald, Arnold drifts off to sleep, and dreams about him and Gerald arguing well into their golden years. The scene lulls kids into a sense of security leaving them unprepared for this image of Grandpa: