The game logic is held within the CSS, which has a rather beautiful obfuscation/formatting applied: <a href="http://kong.xn--8ws00zhy3a.com/kong.css" rel="nofollow">http://kong.xn--8ws00zhy3a.com/kong.css</a>
I think I played this IRL.<p>It would be nice to be able to use the keyboard to play, clicking the screen with the mouse is too difficult (I don't have a touchscreen.)
At first I thought it didn't work for me neither in Firefox 49.0 nor Chromium 51.0 on Fedora 23.<p>One has to first press one of the "GAME A" or "GAME B" buttons, and then press the "JUMP" button.
Related: Horrible PDF experiments (play breakout in a PDF document)<p><a href="https://github.com/osnr/horrifying-pdf-experiments" rel="nofollow">https://github.com/osnr/horrifying-pdf-experiments</a>