Cannon Defense is a cool turret defense game where your job is to destroy all enemies that are approaching your base and trying to destroy it. All enemies will come from the right side of the screen. Use YOUR MOUSE to aim the cannon and click LEFT MOUSE BUTTON to fire. Press SPACEBAR to reload. When you earned enough cash, click the UPGRADE button to access upgrade menu. You can also build additional turrets from the upgrade menu! Turrets will automatically shoot at the closest enemy within range. After clicking Start the game click Resume button to get into action!