Move around with the arrow keys and run with Z. When a customer comes remember the number he gives because you'll have to park the car on that spot. Get in and out of the car with SPACE key. Be careful not to bump or crash the car because the money for its repairs will be taken from your salary. If you cause too much damage you'll get fired. Return the car to the customer as fast as possible to get more money.
arrow keys, Z, SPACE