100 Challenge Mode
Successfully complete all nine outdoor shooting range challenges to unlock 100 challenge mode.

Exchange 5 Seconds For Half Of Life
Pause the game in arcade mode and press B, A, Right, Left, Right, Left, Down(2), Up(2). If you entered the code correctly, you will hear the sound of a gun.

Exchange A Half Of Life For 5 Seconds
Pause the game in arcade mode and press Up(2), Down(2), Left, Right, Left, Right, A, B. If you entered the code correctly, you will hear the sound of a gun.

Extra Options
Successfully complete the game on any difficulty setting to unlock a real time window and up to 8 health in the options menu. Successfully complete the game more that twice on any difficulty setting to unlock infinite credits in the credits section of the options menu and +30 in the time limit section.

First Person View
At the mode selection screen, press Up(4), Down(4). If you entered the code correctly, you will hear the sound of a gun.

Hidden Mode
At the mode selection screen, press Right, Down, Right, X, Up, X(2), Y, Down, Right, Down, Right, X, Y. If you entered the code correctly, you will hear the sound of a gun.

Love Mode
At the mode selection screen, press Left, Right(2), X, Y. If you entered the code correctly, you will hear the sound of a gun.

Mirrored Levels
At the mode selection screen, press Left(2), Right, X, Down(2), Up, Y, Up, Right, Down, Up, Left, Down, X. If you entered the code correctly, you will hear the sound of a gun.

Night Mode
At the mode selection screen, press Up, Right, Down, Left, Up, X, Y. If you entered the code correctly, you will hear the sound of a gun.

No Crosshair
At the mode selection screen, press Right(3), X. If you entered the code correctly, you will hear the sound of a gun.

No Enemy Cursor
At the mode selection screen, press Right(4), Left, Down, Up, Right. If you entered the code correctly, you will hear the sound of a gun.

No Scope
At the mode selection screen, press Right, Down, Right, X, Right, Down, Right, X. If you entered the code correctly, you will hear the sound of a gun.

Turbo Mode
At the mode selection screen, press Down, Y, Up, X, Y, Down, Right, Down, Right, X, Y. If you entered the code correctly, you will hear the sound of a gun.