Super Mario 64/Nightmare Fuel
- Countless kids have been scared by Unagi, the eel hanging around Jolly Roger Bay. To add insult to injury, one of the Stars is attached to his tail.
- The endless staircase, especially with the music.
- The Killer Piano.
- There's also that creepy calliope music that plays in the basement of that level. The first time falling into the basement can be a fright because of it. It turns into Nightmare Retardant when you find its source, though.
- The... music... to Big Boo's Haunt is rather disconcerting.
- Have any of you even seen the Grindels, with their constant Slasher Smiles? Thankfully, they're only found in one level (within a level), but still.
- Back to Super Mario 64