This reminds me of the beginnings of the webcam project, I had a silicon graphics box with a camera attached to it pointing at a 'mobile' with a bunch of paper birds, a fan and a light. You could control the fan and the light via the internet, a simple cgi program would change the state of two output lines, a couple of relays and it was done.

For months I would receive messages that would roughly fall into two categories, those that thought that it was really neat and those that thought it was fake :)

Now, as for this robot, imagine two of them in an arena!