Always Special 
To do this all you got to do is this. On the first level when you are fight'n Congar pause the game right after he does his video, when the game is paused press the shoulder buttons (R1, L1, R2, L2) then press up triangle, square, R3, L3, left right. The screen should shake when you do it right. To turn the code off pause the game and do it again. (Note: if you choose a different monster in Adventure mode you will have to do this code again) 
Submitted by theobz 

Infinite health 
On the press/start screen hold the shoulder buttons and press up, down, triangle, X. 
Submitted by theobz