Level Select:

press START to pause game, then press SQUARE, CIRCLE, TRIANGLE + SQUARE(2), CIRCLE, START.

Invincibilty:

press START  to pasue game, then press, Square, Circle, Triangle + X, Square, Circle, and Start.

Pass Through Objects:

press START to pause game, then press, Square, Circle, Square +Circle, Square(2), Circle, Start. 

Play as J. J. Sawyer

Successfully complete the game with an "S" rank in all levels to unlock J. J. Sawyer.

Play as Naomi

Successfully complete the Downtown level with a "B" rank to unlock Naomi.

Play as Oscar

Successfully complete the game with an "A" rank in all levels to unlock Oscar.

Play as The Insider

Successfully complete the Storage level with a "B" rank to unlock The Insider.

Stunt attack mode

Successfully complete story mode to unlock attack mode.

Alternate costumes

Complete one of the following tasks to unlock a third costume for the indicated character:

Ethan: Successfully complete stunt attack mode.

Kat: Successfully complete score attack mode with high scores in all levels.