https://adamjc.github.io/chip-8/
WebGL, shaders, all that jazz. Smoooth pure 60fps retro action.
Uses phaser to handle all the webgl stuff because I'm way too lazy to deal with it myself.
Thanks to CowGod's CHIP-8 Technical Reference: http://devernay.free.fr/hacks/chip8/C8TECH10.HTM#2.1