Colorless

AI has advance to the point where everything is possible for them. The humans? they are nothing to the Robots. However the hatred towards human by the Robots will always stay. Hence to get back on the human the Robots has robbed the world of it's colors making the world monotone and colorless. 

You play as a colorless Ninja on a mission to regain the world’s color by defeating as many robots as you can. Throw your shuriken or your fist to and defeat as many robots as you can. Hopefully you shall regain the world’s color...