Enter the game directory and create a copy of the "windows.fit" file and name it as "ixtlriimceourl". Copy and rename "windows.fit" so both filenames are present if the game's patch status is unknown. Then, enter one of the following codes at the indicated screen.
God mode (During mission): osmium
All weapons (During mission): hereitcomes
Restore ammo and armor (During mission): lorrie
Heal wounded pilots (During mission): healall