Overview: The Super Mario Bros. and Duck Hunt cartridge is one of the most abundant NES cartridges in existence today. We ourselves have many, many copies. For most of the NES's life, this was the game that came with the system. Super Mario Bros. is one of the best selling games of all time. Duck Hunt is also a timeless classic. This was the first game to feature the light gun in the home. The public loved it. Super Mario Bros. and Duck Hunt are both timeless classics and everyone should play them at least once.