Open corresponding fileĮnter ' CAT ' or ' PRINT ' as a code to open the corresponding file. Display all commandsĮnter ' HELP' as a code to display a list of system commands in the terminal and Pentagon user e-mail access. Note: Play the Zork game to get the 'Eaten By A Grue' trophy. Zork gameĮnter ' ZORK' or ' HELLO SAILOR' as a code to unlock the Zork: The Great Underground Empire text-based adventure game. Note: Play the Dead Ops Arcade game to get the 'Insert Coin' trophy. Use the Left Analog-stick to move and the Right Analog-stick to shoot. Dead Ops Arcade gameĮnter ' DOA' as a code to unlock the Dead Ops Arcade game, which is a zombie killing mini-game similar to Smash TV. Alicia gameĮnter ' ALICIA' as a code to unlock the Alicia virtual therapist game. Note: Enabling this code will prevent the 'Closer Analysis' trophy from being earned. All IntelĮnter ' 3ARC INTEL' as a code to unlock all Intel. Mission select, 'Five' Zombies mode map, Dead Ops Arcade game, and Zork gameĮnter ' 3ARC UNLOCK' as a code to unlock the 'Five' Zombies mode map, Dead Ops Arcade game, Zork: The Great Underground Empire text-based adventure game, and all missions. Note: You can also plug a USB keyboard into your PlayStation 3 to enter the codes and play the Zork text-based adventure game. Type one of the following codes to access early unlockables and hidden features in the game.

After breaking free, move around to the area behind your chair to find an old computer terminal you can use to access the Central Intelligence Agency Data System. Repeatedly press L2 + R2 to escape from the chair (unlocks the 'Just Ask Me Nicely' secret trophy). At the main menu, use the Right Analog-stick to look down at your hand and see you are locked up.

Black ops 1 zombies strategy