Area 51 - Platform: XBox

Secret tapes:
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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.

Life Or Death: Alien grenade upgrade:
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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:
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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.