PlayStation 2 :: Area 51 Cheat Codes
Gray Alien in multi-player mode
Successfully complete campaign mode on the hard difficulty setting to unlock Gray Alien in multi-player mode.
Secret tapes
Find and scan all five databank items in a level to unlock the secret for that level. The final secret of the game is unlocked when all prior secrets have been found.
Hard mode
Successfully complete campaign mode on the medium difficulty setting to unlock the hard difficulty setting.
Arcade cabinet
In the earlier stages of the game, there are a few cabinets of the original Area 51 arcade game, complete with red and blue light-guns.
Interesting scans
During the training levels, scan everyone that you can. You will find some interesting equipment of the MPs, including adult diapers and condoms. Additionally, hold Right Analog-stick Down (with the default controller configuration, or in the opposite direction in the inverted configuration) until your scanner stops moving and you appear to be looking at your feet. You can now scan yourself and see information about Cole.
Moon Landing Conspiracy
When you reach "Lies of the Past: Checkpoint 4", you will ascend in an elevator. Exiting the elevator, you will see a replica of the Moon's surface, a model of the U.S. space suit, and a shuttle the United States used to reach the Moon. This is in reference to the Moon Landing Conspiracy, claiming that the U.S. never actually reached the Moon, and faked the landing to beat the Russians in the space race.
Alien grenade upgrade in Life Or Death
Search the dead soldier in one of the elevators where Cole starts the level to find a small key. Use it to open the small lockers in the first power conduit pit to find a databank item. It will upgrade the alien grenade so that it will track targets.
Defeating the Super Beast
When fighting the Super Beast, rather than running straight at him, run around in a circle. When he gets near an explosive barrel, shoot it. It does more damage then the BBG. Watch out for his plasma shooting arm as well. When you finish, Edgar will talk to you, and you get to see him.
Defeating Grays
To defeat Grays that use shields, mutate and fire parasites at them. It will bring down the shields faster than any other weapon in the game.
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in the level c2 where u get to see the second spaceship use the bbg after u get below the ship it not easy to escape the enemiesso get near the elevator where no one attacks u then use the bbgs laserused for aimingtowards the roof.the laser willglow red when it gets the taret.then shoot.the laser will bounce off and get the victim continue this for an easy finish
hey i need help completin the level lies of the past chekpoint4 where im on this replica of the moon.these invisible guys just kill me on the spot .the bbg helped here