In the game Killer Assassin you will have to eliminate your targets discretely and not to be spotted to complete each mission. Move around using your environment to stay under cover and avoid being illuminated by enemy flashlights. Attack your targets from the back, eliminate them with your knife and run away discretely to not alert the other guards. If you get shot too often you will quickly die! Killer Assassin offers dozens of levels, first ones will be rather simple but quickly the difficulty will increase to become difficult infiltration missions.