Ich habe grade Defender gespielt. Im Browser, im Favicon. Whooohoo! Läuft allerdings nicht in Internet Explorer und Safari.
Obviously since this little game makes use of canvas and the toDataURL method, it does not work in Internet Explorer, and Safari does not seem to support PNG favicons. Prefer Opera or FireFox, although FireFox 3 suffers from garbage collection hick ups when playing in the favicon.