Fighting Castel
Description: When you get Castel's health down some he pulls out a knife. You can disarm him though, by moving the fight over to the desk.

How to: Once you are in front of the desk perform a takedown, and if Jason is in the right spot, he will stab Castel with a ball-point pen. Without the knife, Castel does a lot less damage. Note that you do need to do a takedown near the desk; any other location will allow Castel to keep his weapon.

More Concept Art
Description: unlock more concept art than is otherwise available to you

How to unlock: At the in-game cheats menu and insert lastchancemarie.

Automatic Shotgun
Description: Replace your assault shotgun with an automatic shotgun

How to: At the in-game cheats menu and insert the following password: alwaysanobjective.

Bonus Music Track
Description: unlock a bonus music track

How to unlock: At the in-game cheats menu and insert jasonbourneisdead.

Silenced Machinegun
Description: unlock a silenced machinegun

How to unlock: At the in-game cheats menu and insert the following password: whattheymakeyougive.