To play the game, click the mouse once to get the penguin to jump. Then, as the penguin is falling, click your mouse button again to swing. If you hit the penguin, it will fly across the icy field. The objective (obviously) is to get the penguin to fly as far as possible.
Hint: After the penguin begins its jump, hold down your mouse button and then let go at the exact moment you want to swing to improve your accuracy.