Playstation 2 - Cheats:   # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Sucht Ihr Cheats für ein bestimmtes Spiel? Dann fragt hier nach.   Area 51 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. Additionally, go to a building behind the crane operations and scan a top secret file. Go back to the secrets in the campaign menu and play Doctor Cray's diary to hear him say something similar to "Man certainly has been to the moon but the horrors of the alien life form that reside there have never been reviled to the public." This refers to the theory that there is alien life form on the moon and that the government chose to hide it from the public. 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 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. 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 Thetas The best way to defeat a Theta is to first mutate. Next, fire parasites; or if you want to take a chance, fire contagion to lay some heavy damage on him. Note: Use contagion for heavy damage, but parasites also work well, especially because they heal you. When your mutagen runs low, run up and melee him and/or the enemies he releases on you (the "bubbles" or leapers). Keep doing this and he will eventually go down. This will take some time to accomplish and may be difficult at first.     Dank an: Udo E.