A Creeper is a prominent, trademarked hostile Minecraft mob who attacks by exploding and self-destructing itself. The Creeper was created in Minecraft after Mojang made a mistake coding the Pig mob. They sometimes appears in SuperMarioGlitchy4's videos, mostly in his Minecraft bloopers. Their most prominent appearence was in the blooper "Castle Creepers" when Steve visits the castle and leaves the door open, many minecraft enemies including Spiders, Endermen, Snow Golems, Blazes and Ghasts go through the portal into the castle and annoy Mario and Luigi. Some also appear in SMG4's first Minecraft blooper, World of Craftmine which was also the first appearance they had.