During game play,hold ALT and type WAR. Release ALT and type in these codes.

godmode - God mode
combo - Disable fog of war/view entire map/quickbuild/$1 million and 1,000.
moremoney - $1 million and 1,000 RU's.
autowin - Kill all ememy units.
loadunits - All units and buildings available.
dogeatdog - Double power output.
wincampaign - Win campaign.