If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In Hay Delivery racing game your playing a role of a delivery truck driver, and the thing that your delivering is Hay bails to the barns and farms in the country side. To pass the level make sure your deliver the hay on time and with the full load.
Up Arrow Key - Accelerate.
Left / Right Arrow Keys - Lean.
Down Arrow Key - Brake / Reverse.