Central Intelligence Agency Data System:At the title screen,
use the Right Analog-stick to look down at your hand when you are locked
up. Repeatedly press LT RT to escape from the chair. Move around the
lab and find a computer. Type in the following commands to activate the
corresponding cheats:COMMAND – CHEAT FUNCTIONDOA – Zombie killing mini-game similar to Smash TV. Use the Left Analog-stick to move and the Right Analog-stick to shoot.3ARC INTEL – View all intel.3ARC UNLOCK – Unlock Dead Ops Arcade and Presidential Zombie mode.ZORK or HELLO SAILOR – Zork – The Great Underground Empire text adventure game.DIR – List audio files and pictures for use with CAT command.CAT or PRINT – Open corresponding file.WHO – List of login names for use with the RLOGIN command (requires passwords).LOGIN – Attempt a new session with a corresponding username and passwordDIR or LS – Display contents of the current directory.ENCODE – Encode a string using the CIA
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