Shadow Man

Shadow Man (シャドーマン) is an enemy from The Ninja Warriors and The Ninja Warriors Again.

Details
Shadow Men appear as enemy ninjas in dark green uniforms wearing a Hannya mask. They have the same abilities as the player (or, in the case of the SNES game, the Kunoichi), attacking with kunais at close range and throwing shuriken from a distance. In the Arcade game they mimic the player's movement and will prevent the player from somersaulting behind them.