The Under Mole is an enemy which appears in Castlevania: The Adventure. They are little creatures with long arms and no facial or body features, and which barely resemble a mole. Their hands and feet lack fingers and they only end in a big claw-like shape.
Under Moles hide out in several holes in the Caverns' walls and a whole family of them must be faced as a boss fight at the end of that level. There are twenty Under Moles in total which must be defeated to continue to the next level; they leap out from four holes on the wall, do somersaults and try to overwhelm Christopher with their vicious claws.