Voidcall – Making of 13kb JavaScript RTS Game
Many javascript code compression techniques are used to create even shorter demos, animations and even games, using 140 characters or less, by the Dwitter community. E.g. a similar to Perlin noise image used to create the terrain (in this 13k game) was made with less than 140 characters of JavaScript, see here:
https://www.dwitter.net/top/month
Some Dwitter members are also developers of 13kb games.