Quicksand-S - Thanks for the great feedback.
I'll have a look at improving things over the new few weeks, including adding sound and music.
The URL changing is mostly for debugging purposes so in theory when you press back it takes you back through the levels you've played, but I should probably just remove it.
If you go back to the link you should be able to resume from where you left off, there's a whole host of other mechanics like large blocks, sliding one, ones that switch places with you etc...
Monsterkillu - Thanks for letting me know, I'm sorry you're having trouble. I always test on Chrome, could you please open the Javascript console (
http://stackoverflow.com/questions/66420/how-do-you-launch-the-javascript-debugger-in-google-chrome) and private message me the log? The only issue I've seen on Chrome is people with NoScript or similar extensions blocking some or all of the javascript.