"Full CSS Nintendo NES" is a bit of a linkbait title. However, it's still kind of amazing, because despite knowing that CSS is not Turing complete, I still clicked on it hoping for an emulation. Which effectively means that I identified it as bait and then chose to eat it anyway.<p>Other than that it's a neat demo.
To me this is unpractical example of use of CSS. Yes, you can do an image using tables and other elements or techniques but I think these things are just a waste of time. If you want to drool on something why not seeing this made on SVG AND using all the CSS, JS capabilities instead of showing something made in CSS with fewer uses.
The author of this should get in touch with the guy that wrote that NES emulator in javascript [1]. I can imagine a pretty neat collaboration of the two projects!<p>[1] <a href="http://fir.sh/projects/jsnes/" rel="nofollow">http://fir.sh/projects/jsnes/</a>