In the multiplayer game wipeout you can get an uber amount of points if you grab on to a car. What you do is ride toward a car (or any thing that moves like a car)
Do a bunny hop and bail mid air (to bail Press L1 L2 R1 R2 at the same time)
And grabbing on to the back of the vehicle or near back (by pressing and holding triangle button). Then relax as you watch your player get tossed around and rack up your score.
MAY NOT WORK ALL THE TIME BUT WORKS MOST OF THE TIME!!!
Zip it up & zip it out

PIEKING101

If you do a wall tap (x, left) or a fast plant (x, right)and lean into the wall you will fall through the wall, or if you are doing it on the side of a building you will fall but end up on top. ( but warning this doesn't work on all the walls. )