Play Project Super Mario Bros emulator game online in the highest quality available. Project Super Mario Bros is a Nintendo game that you can enjoy on Play Emulator. This NES game is the US English version that works in all modern web browsers without downloading. Project Super Mario Bros is part of the Mario Games, Arcade Games, and Platform Games you can play here. PlayEmulator has many online retro games available including related games like Wonder Project J2, Project S-11, and Armorines: Project S.W.A.R.M.