Extra options
Beat the game under any difficulty setting to unlock a real time window and up to 8 health in the options menu. Beat the game more than twice under any difficulty level to unlock infinite credits in the credit section of the options menu and +30 in the time limit section.
Voyeur Mode
X, Circle, X, Circle, Triangle, Triangle, Triangle, Triangle, L1, L2, L1, L2.
Get rid of the aiming rings and enemy markers
Hold trigger, press start, continue holding the trigger, now highlight mode, press start x4.
Hidden mode
At the mode selection screen, press Right, Down, Right, Square, Up, Square, Square, Triangle, Down, Right, Down, Right, Square, Triangle.
First person view
At the mode selection screen, press Up(4), Down(4).
Pink mode
At the mode selection screen, press Left, Right(2), Square, Triangle.
Exchange a half of life for 5 seconds
Pause the game in story mode and press Up(2), Down(2), Left, Right, Left, Right, X, Circle.
Exchange 5 seconds for half of life
Pause the game in story mode and press Circle, X, Right, Left, Right, Left, Down(2), Up(2).
100 challenge mode
Successfully complete all nine outdoor shooting range challenges to unlock 100 challenge mode.
No crosshair
At the mode selection screen, press Right, Right, Right, Square.
No scope
At the mode selection screen, press Right, Down, Right, Square, Right, Down, Right, Square.
No enemy cursor
At the mode selection screen, press Right, Right, Right, Right, Left, Down, Up, Right.
Romantic Mode
At the mode select screen enter:
LEFT, RIGHT, RIGHT, SQUARE, TRIANGLE
Your scope will look like a heart and the screen will have a pinkish tint to it.
Love View
Press left, right, right, square, triangle at the mode selection screen for the usual circular sights to become a heart shaped one.