If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In the game you will find a very special car Ponky which can jump over any obstacles such as other cars on the road and oil slicks. But things are not always perfect. If Ponky jumps, it will be slowed down. So try to avoid obstacles by operating it well. Use its jumping ability only when it’s necessary.
Use mouse to drive.
Space bar to jump.