Super Mario Bros. / Duck Hunt Cheats

When you get Game Over, wait until the 1/2 player screen comes up, Hold A then press start. You will begin the first level of the world that you died in. For example if you got game over in 6-3 you will restart in 6-1.

By simply plugging an extra controller into slot two on the NES, player two can control the ducks and player one can try and shoot them with the blaster light gun. This works on one duck and two ducks but not on the discuss mode.

Start a target shooting game and have an extra controller plugged in to port 1 and the light gun in port 2. Press start on the controller in port 1 to pause the game when you unpause the game the targets will remain frozen for a few seconds giving you a clean shot.