Check out this mash-up of the classic Duck Hunt with another classic, Doom.
“The objective is simple. Shoot as many ducks as you can with Doom weapons such as The Super Shotgun, The Chaingun, The Rocket Launcher and The BFG-900!”
Personally I find the regular shotgun to be the most reliable. Total retro awesomeness: Duck Doom.
(via BoingBoing)