If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game you select one of the three available transports: a tractor, a camel and a hot air balloon. You then will need to move your chosen transport along the track. You need to reach the finish before the time is over. However, always going forward with the maximum speed is not always the best solutions, because there'll be many obstacles you'll need to avoid and many bonuses you can collect. Slowing down a bit and maybe even going a bit backwards can be worth it.
Use Arrow Keys to move.