Version 2

Ok so Z and I had a bit of a play around this morning. What we decided was that different sized circles were more exciting, that something should happen when you press the mouse buttons or if you hit the keyboard, that it shouldn't die off to a boring white screen ever and that the mouse shouldn't go off the edges of the page. You can download the new Windows version here and here is a small sneak preview (move your mouse over the rectangle below once it has finished loading):