If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Help the penguin to reach the igloo, his pair is waiting there. Do not hit on the border line and keep away from Walrus, Polar bear and penguin. If you do so, you can't play anymore. Finish the level before the time runs out to move to the next level. Complete every level to win the game.
Arrow keys - To move.
Space bar - To stop.