While playing press A B C Left Down Right Up Left Down Right Up C.
While playing press Right Left A B C Z Y X Right Left. Repeat this code as many times as you wish.
After you've built a power plant and a barracks or Hand of NOD press Y A B B A Down A B B A Down Up. You can now build SSM'S mobile construction yards and commandos.
While playing press A B C Left Down Right Up Left Down Right Up B.
Build an Orca then press X Y Z Right Down Left Up Right Down Left Up X. Your orca's will be armed with two lasers with Obelisk of Light power.
While playing press A B C Left Down Right Up Left Down Right Up A.
Passwords for GDI
Level Passwords for NOD
While playing press Up Down Right Left A Up Down Right Left A.
While playing press C Right A Z Y B Up B B A.