[mooted]

any live examples?

[mikeryan]

This is old but this version of arakanoid was always pretty impressive.

http://www.schillmania.com/arkanoid/

Note it does cheat and use flash for SFX

[chaosprophet]

Nope, it was just a thought. You're just going to be changing the innerhtml of DOM elements. Shouldn't be tough.

[ZeroGravitas]

John Resig's Deep Leap: http://deepleap.org/