DOA Unlock the Dead Ops Arcade game
3ARC UNLOCK Unlock the Dead Ops Arcade game, Zombies mode, Zork: The Great Underground Adventure, and all missions
3ARC INTEL Unlock all Intel (NOTE: The "Closer Analysis" Achievement will be disabled)
ZORK Unlock Zork: The Great Underground Adventure game
HELP Displays all system commands
CAT [file] Open the [file] specified. Enter DIR to see a list of available [file] names