Note 1:
With this code, you have to press R1, R2 & Select at the same time to activate it, and press R2 & Select to de-activate it. It allows you to fly by when you are close to an edge and you can walk right off,(Normally you just fall and hit the floor) this time you will be floating in mid-air. And whenever you want to fall back to the floor, just hit R2 & Select to de-