If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Get behind the wheel of your taxi monster truck and see if you can get your clients to their homes in time. The terrain is rough, obstacles are scattered all over the place, so you need to drive carefuly. However, speed is also important. So step on it taxi driver and put that monster taxi truck in motion.
Arrow Keys - Drive.
Spacebar - Drop the customer.