You are a killer and it is your job to take out someone, wherever they are. You get paid for that and you have done it a lot of times already, so this is not something new for you. In short, you are a professional killer. In this game, you need to kill all the people that are passing by the screen. You need to take them down as fast as you can as they would not show up again. Then again, there would be more people to shoot as long as there are time left. There are no levels in the game.