1. BFG (Its a freakin' laser rocket) - Doom
2. Energy Sword - Halo
3. Lightsaber - Star Wars
4. Chainsaw - Doom
5. Prism Tanks - Command & Conquer
6. Sheep Cannon - Burbenog TD - Warcraft III: The Frozen Throne
7. Hammer of Dawn - Gears of War
8. Force Lightning - Star Wars
9. Bahamut Familiar - Final Fantasy
10. Bombchu - Legend of Zelda
11. Gravity Gun - Half-Life
12. Laptop Gun - Perfect Dark
13. Wabbajack - Elder Scrolls IV: Oblivion (Random Creep Morphing = Fun)

Most of the weapons on here are good for quick kills, but seriously a cannon that shoots sheeps? Thats just awesome. Also the Energy Sword beats lightsabers just because of Tucker in Red vs. Blue. Seriously.