Nightmare Fuel / New Super Mario Bros. U
  • The opening of the game is pretty jarring, with the giant Bowser claw crushing the heroes and throwing them out of the kingdom.
  • In a certain set of haunted levels in the Soda Jungle, you can see a giant, painted, Mega Bowser in the background. He has no eyes and just sits there looking like he wants to eat you. Wait did his eyes move?
  • Grrrols. They're one of those enemies that can't be killed by normal means, plus they have toothy grins and red eyes with black scleras. It doesn't help there is a giant version of it as well.