Think about it - and it moves. Think harder, the robot moves faster. But don't worry; as a robot it knows to avoid the black border so it doesn't fall off the table.
"Make a Mind Controlled Arduino Robot" shows you how to build your own. You learn to measure attention level with a NeuroSky headband and send this information into Arduino. You will also build a line-avoiding system into the bot. And, of course, you will build the chassis of your robot from scratch.