Thrasher: Skate And Destroy
At the main menu, press Square, Triangle, L1, R2, Circle, X, Triangle, Right(2), Left to unlock all levels.
Bumblebee suit skater
Select Roach without a hat and enter "BEESUITGUY" as a name to get a skater with super stats that can execute huge Ollies and 540s.
Select Axl as a character and enter "ZAXIS" as a name.
Select Cyrus as a character and enter "MARDUK" as a name.
Select any character and enter "ROCKSTAR" as a name.
Pause the game during a timed run, then hold L1 + L2 + R1 + R2 and repeatedly press Circle to increase your score 5,000 points at a time.