My first HTML5 game - lightcycles (with source)

You can play my HTML5 lightcycle game:

640x480 mode here: http://jsfiddle.net/PxpVr/17/embedded/result/ 320x240 mode here: http://jsfiddle.net/PxpVr/16/embedded/result/

The source code is available on GitHub: https://github.com/JDStraughan/html5-lightcycles