Mister fire mustache is spooky!! But tbh i can't really remember ever getting nightmare's when i first started playing games...actually.. i think i remember one boss/enemy! If anyone has played Crash Mind Over Mutant, do you remember that segment when you have to go to a Ghost like mountain? Well thare was a mutant there that gave me nightmares....(btw, Crash Mind Over Mutant was on the PS 2)