Demonic Spiders/Video Games/Puzzle Game


 * The Psycho Sheep from Catherine. Not only do they move fast and function as the only enemy in the game that can directly kill you, but can jump up a height of two whole blocks to boot. It's near impossible to keep them away. They only show up in 9-2, 9-3, and 9-4, but are foreshadowed much sooner.