While playing, press right and hold the L3 buttons. After 5 seconds, press the circle button. Now Lazarus should be able to inflict greater damage to the ghosts.

Without pausing the game enter: hold RIGHT and L3 for 5 seconds or more then press TRIANGLE.

Unverified. On the main menu press R1, L1, and hold CIRCLE for more than ten seconds. An audio cue should occur if this cheat proves true.