If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Drive through a car graveyard and use your crane to pick up broken cars from the street and dumping them. This is a really fun game where you have to understand your vehicle and learn all the ways to use it. Try to complete your mission before the time runs out and try not to damage your crane by crashing it. Enjoy all eight levels and finish the game with a high score. Have a lot of fun!