Help the ninja use his kills to rescue the prisoner and collect the gems. Move fast and don't let the enemy see you. Get the blue orbit to become invisible. Use arrows to move and X to become invisible.
Find your objective and kill him by the back. Move with W,A,S,D and guide using the mouse. Press the space bar to speak and go through the city. Make click with the mouse to use your sword. Press the menu to see the map.
Take this sword and protect yourself with the shield and eliminate the enemies across the stage, trying that they don’t end up with you... Attack by pressing the left button of the mouse and releasing it once you've aimed.