Using the WASD keys, manoeuvre the white arrow from the green square to the orange square while staying on the generated path. The goal is to reach the orange square ten times in a row in the shortest amount of time. Be careful not to hold several keys at once, as this will not activate any of them. As you improve, you can strive for the world record, which is displayed alongside its holder's username on the top of the screen.
Thanks to @mstone326 for the script to encode usernames and thus allow their storage on the cloud.