My entry "Art in '92" to js1k 2016
She started dancing almost a quarter century ago ! Tribute to a demo that redefined the Amiga scene back then.
The referenced demo is the outstanding State of the Art released by Spaceballs at The Party 1992. Of course only a tiny fraction of it could be crammed in 1k. I extracted four vector images from the original, downsampled them to 28 points and animated them over 14 frames. Spice with hypnotic circle patterns, faking a bitplane effect through canvas composite operations (unfortunately too slow to maintain 30 fps on Chrome, Opera and Safari). Top with music, original melody by Travolta, drumloop evolved from generative work by mu6k. Serve with animation synced to the music.