After killing the two men at the start of the level, you will be attacked by some other enemies that come through the door. After killing them, go down the stairs and out the window. Once you are outside, look to your right, off the edge towards at the far street in the distance. You will notice a white car drive by. Enable the god code and jump down off the edge and onto the street. Run over to the area where you saw the car. Once you get there, you will see that the cars you thought were going by are actually the exact same car. It just keeps turning around and going the opposite direction every time it hits the invisible boundary in the game. Note: You will be unable to complete the level if you do this, because you cannot get back up onto the building you started from.