Doing it is pretty simple. Just copy and paste the red text below onto your address bar and just OK to everything:
What you do here is roll the ball around your screen using your mouse's right-click key and gather all the objects – in this case web tiles – you can. Simple yet fun.
Anyway, KatHack was the winner of the 2011 Yahoo! HackU contest at University of Washington. It has to be, since no other script lets you play Katamari Damacy on screen.
'Till my next installment.