Change gun options
Hold B and press Z to change options on your gun. For example, you can make the Wolfram P2K have a silencer. Note: Every gun does something different.
Use gadgets
Hold B and press A to use certain gadgets, such as nightvision. Note: This only works in certain levels such as Mission 6: Night Watch.
Air Raid scenario
Successfully complete the Masquerade level on the "Agent" difficulty" setting with a time less than 3:15 to unlock the Air Raid multi-player scenario.
Capture The Briefcase scenario
Successfully complete the Turncoat level on the "Secret Agent" difficulty setting with a time less than 3:20 to unlock the Capture The Briefcase multi-player scenario.
Castle scenario
Successfully complete the Subway level on the "Agent" difficulty setting with a time less than 2:15 to unlock the Castle multi-player scenario.
Forest scenario
Successfully complete the Night Watch level on the "00 Agent" difficulty setting with a time less than 2:20 to unlock the Forest multi-player scenario.
Golden Gun scenario
Successfully complete the game on the "00 Agent" difficulty setting to unlock the Golden Gun multi-player scenario. In this scenario, you must collect the three parts of the golden gun and kill all of your opponents with it to win.
Sky Rail scenario
Successfully complete the Cold Reception level on the "Secret Agent" difficulty setting with a time less than 3:15 to unlock the Sky Rail multi-player scenario.
Team King Of The Hill scenario
Successfully complete the King's Ransom level on the "Agent" difficulty setting with a time less than 2:20 to unlock the Team King Of The Hill multi-player scenario.
Civilian skins
Successfully complete the City Of Walkways 1 level on the "Agent" difficulty setting with a time less than 3:35 to unlock the Civilian skins.
Classic skins
Successfully complete the game on the "Secret Agent" difficulty setting to unlock Tuxedo Bond, Baron
Samedi, Oddjob, and Jaws.
Contemporary skins
Successfully complete the game on the "Agent" difficulty setting to unlock Alec Trevlyan (006), Wai Lin, Max
Zorin, May Day, and Christmas Jones (dress).
Covert skins
Successfully complete the City Of Walkways 1 level on the "Secret Agent" difficulty setting with a time less than 3:45 to unlock the Covert skins.
Exotic skins
Successfully complete the Cold Reception level on the "00 Agent" difficulty setting with a time less than 3:25 to unlock the Exotic skins.
Navy skins
Successfully complete the A Sinking Feeling level on the "00 Agent" difficulty setting with a time less than 2:55 to unlock the Navy skins.
Security skins
Successfully complete the King's Ransom level on the "Secret Agent" difficulty setting with a time less than 3:45 to unlock the Security skins.
Scientist skins
Successfully complete the Masquerade level on the "00 Agent" difficulty setting with a time less than 4:20 to unlock the Scientist skins.
Soldier skins
Successfully complete the Midnight Departure level on the "Agent" difficulty setting with a time less than 3:05 to unlock the Soldier skins.
Suit skins
Successfully complete the Curiour level on the "Secret Agent" difficulty setting with a time less than 2:00 to unlock the Suit skins.
Exotic weapons mode
Successfully complete the Thames Chase level on the "00 Agent" difficulty setting with a time less than 4:25 to unlock exotic weapons mode.
Gadget war mode
Successfully complete the Fallen Angel level on the "Secret Agent" difficulty setting with a time less than 2:45 to unlock gadget war mode.
Wildfire mode
Successfully complete the City Of Walkways 2 level on the "Agent" difficulty setting with a time less than 3:40 to unlock wildfire mode.