Read the latest instructions! Part 1: Hold down mouse to move the square. Try hitting the edge! Part 2: Now it bounces off the walls! Part 3: Try hitting the big square! It also interacts with walls! Press R to reset the big square. Part 4: This is a big one. R no longer resets big square. Instead, press A to delete all big squares, and press B to add a new one. Look, it's a lot harder than it sounds . . . Press S to toggle having the big squares say their distance to the next closest big square.
