First I've heard of Unity Web Viewer. Unfortunately (on Ubuntu):
Unity Web Player
The Unity Web Player is not currently compatible with the operating system that you appear to be using.
Was playing this a while. It was difficult going above the speed of 400, then I realized I was using the trackpad. Just attached a wireless mouse and the speeds bumped to 600+, then used a table with more comfortable height and its 700+. Funny these games make you realize how good the mouse and the surface beneath it and the height and so on needs to be...