The white square is the player use WASD controlls or the Arrow keys to control. If you touch the walls you die! Which is what makes it so impossible The white circle is what you are trying to touch to get to the next level But you know what else are you trying to touch!? like and favourite buttonsy just clicking them with your mouse and you can do it without anxiety!
Just saying it's not actually impossible. It's possible but extremely hard! Also if you make it to the end then... RESPECT!