Grind Session

Pause the game, then press Circle, Up, Down, Square, Triangle.

At the start menu press and hold L1, R1, then press circle, triangle, triangle, left, left, up, square. you will hear DONG when entered.

To unlock level 8 (Huntington), go to the big gray ramp with a blue streak on the bottom that is in front of a wall. Go off the ramp, and do an air trick (e.g. Christ Air). If you hit the wall in the middle of the trick, you will land it perfectly and get full points.

Pass the photoshoot in Huntington with a regular character to unlock their secret character.