Area 51
Unlockables
Hard mode
Successfully complete campaign mode on the medium difficulty setting to unlock the hard difficulty setting.
Contributed By: RaChuChu.
Easter Eggs
Gray Alien in multi-player mode
Successfully complete campaign mode on the hard difficulty setting to unlock Gray Alien in multi-player mode.
Contributed By: RaChuChu.
Area 51 Resources
GameFAQs
Visit GameFAQs for more Area 51, including 3 FAQs, 2 cheats, 3 reviews, 11 screenshots, and 2 box shots .
GameSpot
Visit GameSpot for more Area 51, including 1 review, 2 previews, 6 news stories, 40 screenshots, 19 gameplay movies, and 1 download .
