GitHub - JHDev2006/Super-Mario-Bros.-Remastered-Public: A Remake / Celebration of the original 'Super Mario Bros.' games. Features new levels, custom modes, new characters, alongside a full level editor / custom level system!
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A Remake / Celebration of the original 'Super Mario Bros.' games. Features new levels, custom modes, new characters, alongside a full level editor / custom level system! - JHDev2006/Super-M...

This has to be the best way to play the original game on PC. It’s right up there with Sonic 3 a.i.r. in terms of fan ports to pc. Get it while it’s hot because nintendo will probably dmca this.