Dogs have prepared several game levels for you, in each of which you will have a task to clear the upper part of the playing field from balls with images of dogs. To do this, you should use the mouse to shoot at them with exactly the same balls from the cannon, which is located at the bottom of the playing field. When a projectile hits the area of ​​balls that have the same image with it, you will remove it from the playing field and get points.