Maximum fuel and armor:
Enter the following code while the game is paused: Press Select, L2, Select, R2,
triangle x3, and circle.

"Perfect" pause:
Enter the following code while the game is paused: Press Select, L2, Select, R2,
Down, R1, and R2

Mission skip:
Enter the following code while the game is paused: Press Select, L2, Select, R2,
triangle x3, and Down x3

Cycle through Gun Modes:
Pause the game and press Select, L2, Select, R2, Select, Select, Select.

Fly through Buildings:
Pause the game and press Select, L2, Select, R2, Square, Square, Square, Square.

Level Skip:
To skip to the next mission, pause the game and press Select, L2, Select, R2,
Triangle, Triangle, Triangle, Down, Down, Down.

Two-player Mode:
At the main screen, press and hold Select + R2 on both controllers.

Passwords

Urban Shield 1018
Black Out 1006
Ice Storm 1213
Dessert Fury 0203
Tiger Trap 0917
Crack Down 0354

Change Gun Type:
sel L2 sel r2 sel sel sel

Acquire Wingman:
Enter the following code while the game is paused: sel L2 sel r2 s s s c

Change Upgrade For Current Weapon:
Enter the following code while the game is paused: sel L2 sel r2 L1 L1 R1 R1

Full Weapons:
Enter the following code while the game is paused: sel L2 sel r2 L1 L2 r1 r2