Bubble Bobble,
Castlevania,
Contra,
Donkey Kong,
Dr. Mario,
Duck Hunt,
Final Fantasy,
Golf,
Kirby's Adventure,
The Legend of Zelda,
Lemmings,
Lifeforce,
Mario Bros.,
Mega Man,
Metal Gear,
Metroid,
Pac-Man,
Super Mario Bros.,
Super Mario Bros. 2,
Super Mario Bros. 3,
Tecmo Super Bowl,
Teenage Mutant Ninja Turtles II - The Arcade Game,
Tennis,
Tetris,
Tetris 2,
Zelda II - The Adventure of Link, all in the browser. site 
The emulator author writes, I am Ben Firshman, a technologist interested in academia, journalism, and developer tools. Previously I led open source product at Docker. I have also founded a few startups, helped create The Guardian’s iPad app, and worked on GOV.UK.
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After learning about a @metapartile.io from Brendan Burns. I'm rethinking Ladder Logic. JavaScript or go home.