Barrett: Successfully complete the game under the elite difficulty setting.
Burnt soldier: Successfully complete the game under the normal difficulty setting.
Dockworker: Successfully complete the game under the easy difficulty setting.
Dragon Wei Lu: Successfully complete the game on hard difficulty setting.
Clown General: Collect all six orbs in the General Boss battle.
General: Successfully complete the game under the elite difficulty setting.
Jack: Successfully complete the game under the elite difficulty setting.
Jov: Successfully complete the game under the elite difficulty setting.
Komiko: Successfully complete the game under the normal difficulty setting .
Labcoat: Successfully complete the game under the easy difficulty setting.
Leather Marlena Pyro: Successfully complete the game under the elite difficulty setting.
Marlena Pyro: Successfully complete the game under the elite difficulty setting.
MP1: Successfully complete the game under the easy difficulty setting.
MP2: Successfully complete the game under the normal difficulty setting.
MP3: Successfully complete the game on hard difficulty setting.
Sara Psi: Successfully complete the game on hard difficulty setting.
Sara Suicide: Successfully complete the game on hard difficulty setting.
Sara: Successfully complete the game under the normal difficulty setting.
Stealth Nick: Successfully complete the game under the elite difficulty setting.
Tonya: Successfully complete the game on hard difficulty setting.
Training Nick: Successfully complete the game under the easy difficulty setting.
UN Soldier: Successfully complete the game under the easy difficulty setting.
Urban Nick: Successfully complete the game under the normal difficulty setting.
Wasteland Nick: Successfully complete the game on hard difficulty setting.
Wei Lu: Successfully complete the game under the normal difficulty setting.