Area 51 Cheats & Codes for [PC]. ::::::::http://www.3dgameworld.net::::::::
          
 
Gray Alien in multi-player mode
Successfully complete campaign mode on the hard difficulty setting to unlock Gray Alien in multi-player mode.

Hard mode
Successfully complete campaign mode on the medium difficulty setting to unlock the hard difficulty setting.







                 Area 51 Cheats & Codes for [PC]. ::::::::http://www.3dgameworld.net::::::::