This trick requires at least a Medium Fuel Tank ($750). Go to the fuel station and refill. As soon as you close the pump screen, start flying upward by holding [Up]. Keep soaring until you reach 5,000 feet in the air. You will receive a transmission from "Mr. Dog" and earn $5,000. Begin dropping down to the ground, and make sure to press [Up] at about 150 to 200 feet so you do not strike the ground and die. When you land, fill up and buy the $2,000 upgrades for a Fuel Tank and an Engine. Then, fill up again. Start flying up again until you reach 10,000 feet. You will receive a transmission from "God" this time. He will give you some sort of guardian angel that follows you around.