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The Mario Bros. or "Mario Brothers" game for NES is a platform arcade game originally developed in Japan for the arcade machine, and later re-released on various platforms, including the NES. Mario's character himself came from an earlier game, Donkey Kong, where his name was "Jumper" and he was a carpenter, not a plumber, by profession. The developers also invented a second character, Mario's brother named Luige, who differed in appearance only by the lighter color of his costume.
The game Mario Bros is truly a legend, as it was the beginning of the famous series Super Mario Bros, which was introduced on various platforms and is known to absolutely all gamers in the world. And although this series has significant differences in gameplay from its predecessor, the very first Mario Brothers game is definitely worth watching and is recommended to all NES fans.