Super Mario Bros. Duck Hunt Orange Zapper Gun Game Bundle
Used and tested sort of. I don't have a tube TV to actually use the gun in the game, but the screen flickers when I shoot at it without actually hitting any ducks. Based on that, the gun should work. You will need an old fashion tube TV to use the gun to shoot in an actual game.
The cartridge has some cosmetic damage to the outside as shown but still works.