5 Nukes
Select L2
Select R2
L1, L2, R1, R2

Two Player Mode:
Select R2 on both Joypads in the game start shell.

Passwords
Black Out- 1006
Ice Storm- 1213
Desert Fury- 0203

Max Fuel & Ammo
T, T, T, O

Cycle Gun Modes –
Select, Select,Select

Screen Mode Toggle
Down, R1,R2 (Bypass Pause Menu)

Max Weapons –
L1, L2, R1, R2

Summon Wingman –
S, S, S, O

Mission Complete –
T, T, T, Down, Down,Down

Upgrade Current Weapon –
L1, L1, R1, R1