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.
difficulty: Successfully complete campaign mode under the medium difficulty
Alien in multi-player mode: Successfully complete campaign mode under the hard difficulty
Life Or Death: Alien grenade upgrade: 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.
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. The conspiracy was
heavily debated, but ultimately rejected by the majority of opinions. Today,
only a few people still claim the Moon landing was a hoax.
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 have 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 is that there is alien life form on the moon and
that the government chose to hide from the public.
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
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.
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
Interesting scans: During the training levels, scan everyone that you can. You will
find some interesting equipment of the MPs, including adult diapers and
Hold Right Analog-stickDown
(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
select the first letter of the game's title below. If the word
"The" appears at the start of a title, ignore it and search for
the second word in the title: