Creeper

Creepers are enemies originally from the game Minecraft. They appear in Borderlands 2 as an Easter Egg, in Caustic Caverns behind breakable blocks of Minecraft Dirt. They are notorious for being almost completely silent, and prefer to come in close to the player before exploding like a bomb.

Badass Creepers may spawn and have a chance of dropping the Cohesion Longbow. The Cohesion Longbow is Legendary and fires Minecraft arrows, and occaisionally drop a New and Improved Blockhead shotgun, which is fire elemental and shoots nine large squares in a three by three square. Both forms of Creeper drop Minecraft skins and heads.

Possible bug: Phaselocking a creeper causes the game to crash.