30 not counting the (block * lines) of HTML ;) If you're comparin' code size - my favourite was from the first JS1K comp - a nice looking platformer in 1K!: http://marijnhaverbeke.nl/js1k/
+ CSS as well
It's still impressive to see. Though I did cheat; I set my lives to 99999 then let the game complete itself like a screen saver
http://jsfiddle.net/icodeforlove/Fq8F4/310/
it always gets stuck for me though :(