Go to the Warehouse level in any of the modes(Career Mode, Single Session, Free Skate, or Two Player).When you start, put in the "perfect balance" and "10 X trick points" codes. Turn right. When you are at the bottom of the ramp turn right until you face the wall, turn right again and go up the quarter pipe, try to stay right next to the wall. After you come down, jump the other ramp to go Over the Pipe and through the Secret Room land on the metal bar, and grind. After you have grinded that, start jumping and grinding until you get to the puddle. Do not jump off. You should hit the wall and go down the ramp without getting hurt. For maximum points, do a backflip over the pipe.