Yeah there is a version of Mario Bros. in the NES/SNES Super Mario Bros. 3, and also a version in EVERY game in the Super Mario Advance series and the first Mario and Luigi. Not to mention that in Japan there is a Classic NES (Famicom Mini) Mario Bros. GBA title.

Mario Bros. (not Super) is also an official e-card. There is no official way to get Zelda or Super Mario Bros. There is no offical way to get Punch-Out in the US, even though it's featured in the official Nintendo Animal Crossing Player's Guide. The Europe Animal Crossing website I think had a code to unlock Punch-Out which I think works on the American version as well.