To change direction, click the mouse button. Eat all the apples and then go through the open door. For an extra challenge, try to eat the coin in every level. Impossible Snake 2 is a difficult game to start playing, but once you get the hang of it, it can be very fun and exciting. It is important to change direction frequently if you want to succeed. This is a fast-paced game where you need to stay focused at all times. If you let up, the snake may curl up and you'll have to start over.