Find a ladder, when online, climb all the way up the ladder (to the top) then turn 180 degrees and LADDER SLIDE (by pressing circle) AT THE TOP OF THE LADDER. When you have reached the bottom of the ladder by ladder sliding, then turn 180 around and you will not be facing the ladder. BUT you will see a climb option at the bottom of you screen. Press circle and you will climb below the ladder and then when you are on the ladder DON'T CLIMB DOWN! You ladder slide but don't push down on the anolog stick, press CIRCLE.