NOTE: To use first two cheats enter the following codes as passwords.

All Xtra Weapons:
SYMRGOBRRL

Complete All Missions w/ All Xtra Weapons:
DYPYFASRHR

Heavy Weapons Total Power:
During gameplay hit pause and highlite "Sound FX Volume" and enter:
Square(x3) Circle X Circle X and quit
When prompted, select yes to confirm


Shield Total Power:
During gameplay hit pause and highlite "Sound FX Volume" and enter:
Square Select Circle X and quit
When prompted, select yes to confirm


Special Weapons Total Power:
During gameplay hit pause and highlite "Sound FX Volume" and enter:
Square Circle Square Select Circle X Square Circle and quit
When prompted, select yes to confirm