Skate towards the bowl. Get a lot of speed in the bowl and ollie out towards the video screen right beside it. Try to land on top of it and hold triangle. If you do it right, your skater will be stuck in one spot and you can link tons of tricks together and not land. Warning! Don't wait to get down too long, as the game freezes up after a while.
This is best done when jumping up from a transfer, because you have optimal height. When you have full special, input the normal command for a character's special grind once off of the transfer, but instead of pressing only the grind button, press grind, flip, and grab all at once. Your character will grind in mid-air! For example, when using Geoff Rowley, get special and jump from a transfer. Once in the air, press left, right+grab+flip+grind. You should do a darkslide in the air.