After beating the game, you get Magruders shot gun right? Well, after getting 100% game completion, or as close as you can get to it, you will recieve the 4th Shotgun....An exact duplicate of Magruder's shotgun with one significant difference: It fires Cannon balls instead of regular bullets! Thats right, a hand-held cannon. It is extremely powerful and will annihilate any creature caught in the path of the cannon ball. Plus, it explodes on impact.