During game play hold L1 + R1 + L2 + R2 and press the following sequence quickly:
Right
Left
Down
Up
You will hear a message if the code has been entered correctly.
Weapons for health -
During game play hold L1 + R1 + L2 + R2 and press the following sequence quickly:
Triangle
X
Square
Circle
You will hear a message if the code has been entered correctly.
Freeze Special Attack -
During game play hold L1 + R1 + L2 + R2 and press the following sequence quickly:
Right
Left
Up
You will hear a message if the code has been entered correctly.