Move with the arrow keys or W/S. The bar at the top is Stamina, you can't move if you're out of it. Fullscreen is highly recommended! The game will pause if you move the mouse out of the screen. Please note that you can't set the high score if you're a New Scratcher.
@Hamsword Also added a Secret Code... code 1: 10 points code 2: 20 points still dunno what the code is