Play Mario Bros emulator game online in the highest quality available. Mario Bros is a Atari 2600 game that you can enjoy on Play Emulator. This 2600 game is the US English version that works in all modern web browsers without downloading. 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 Super Mario Advance 4, Super Mario Bros 3, and Super Mario Odyssey.