You are in the ultimate fortress fight and your mission is to destroy your opponents fortress in battle before they destroy yours. Use YOUR MOUSE to control the game - choose your projectile (weapon), move the mouse to pick an angle and hold down the LEFT MOUSE BUTTON to select the power amount and then release the mouse button to fire. Each projectile has unique damage and accuracy qualities. You cannot use the same projectile two times in a row. You can also fire through power-ups that are located somewhere in the air (use LOOK feature to locate them) to reduce the damage of your fortress or to inflict even more damage to your opponent. Have fun!