Cheat Enabled	To Enable Cheat
Invincibility	Pause and press Triangle, Triangle, >, <, >, <, Down, <.  You'll hear a confirmation sound if done correctly.
Level Select	At the Title screen, press Square (5X), Triangle (7X), Circle (3X)
Max Power-Ups	Pause and press Up, Up, Down, Down, L, R, L, R, >, <.  You'll hear a confirmation sound if done correctly.