Select joyride mode, choose the forest level and the Rally car. Enable the "Low gravity" and "Lighter car" codes. Drive right and follow the road by the river. Once the road starts to curve right then left and you pass a green sign, you should see a tall hill that jumps over a small trail with logs. If done at the right angle and speed you sometimes can start flying to the left, right, down, or in some cases up, where you can look down an see the land. If done correctly your speed will increase up to 1,118 mph.