Take out the monsters in each level to win! You control the flying cannon on the left side of the screen. The monsters are located in groups and rows all over the screen. You only get a certain number of shots per level, so you want to make them count. To shoot, click and hold your mouse down. Move it around to change your aim. Pull the mouse out to change the power of your next attack. Release the mouse when you are ready to attack. A person will go flying out of the cannon, hopefully hitting monsters and taking them down with him!