Black Shadow

is the first boss in Master Mode in the Naruto Shippūden: Ultimate Ninja 4 game, and is a giant wolf-like demon with five eyes, two snouts and six legs. It only talks in katakana in the Japanese version.

Plot Overview
He lives in a cave in the Tree Felling Village and required a sacrifice to keep himself appeased. Naruto Uzumaki later killed it and the village changed its name to the Tree Revival Village. He can only be killed by the flowers from the Tree of Life.

Later, Guy and Naruto travel to his cave and seeing that the demon is not around, Guy pretends to become possessed by Black Shadow, although his act does not fool Naruto even after Guy is defeated and claims that he needs more training because his mind was so overpowered by the demon.