Mario and Shooting ducks are brought together in a good compilation with no changes to the gameplay at all.

User Rating: 9.5 | Super Mario Bros. / Duck Hunt NES
Basically, this is a compilation of both Mario and Duck Hunt.
Super Mario Bros: A classic in every sense of the word, the game which brought back video games from the tip. For the time the graphics were just unheard of for a game, now they weren't just pixelated blobs, they were people. The music contains one of the best known soundtracks ever and it will never leave your head. The plot maybe pathetic now, (because every game in the Mario Franchise has the same idea.) But, it was one of the first home console games to have a good plotline. The gameplay was so simple a 3 year old could play it but that was the beauty of it, for the first time ever we had firearms with those fireballs.
Duck Hunt: The classic Light gun game was very simple, the graphics were probably the best launch title graphics for the NES. The game didn't really need a plot line, because you were just shooting ducks. The music? Well I wouldn't compare it to Mario. The best thing about this game was the Light Gun, you could only see these in arcades at the time. Having a realistic gun as a controller and using it to shoot ducks was genius.
Good work Nintendo