A couple good button codes
At the title screen press the following buttons and if the code works you will hear a sound confirming it.
Weapon Select: L2, R2, L1, R1, up, down, down,up.
( When the game starts hold the square and press the triangle.)
MoreLives: L2, R2, L1, R1, down, up, up, down.
Select a stage
At the menu select screen press L2,R1Left,right,circle,square,R2. It will going to give you the screen for select a stage.
