If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Help the postman get the parcels from the sorting office to the post office on time and without loosing too many. The more parcels you deliver and the quicker you deliver, the more points you are awarded.
Up / Down Arrow Keys - Forward / Backward.
Left / Right Arrow Keys - Balance.
R - Restart.