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.

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.

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.

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.

Successfully complete the Subway level on the "Agent" difficulty setting with a time less than 2:15 to unlock the Castle multi-player 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.

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.

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.

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.

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.

Successfully complete the game on the "Secret Agent" difficulty setting to unlock Tuxedo Bond, Baron Samedi, Oddjob, and Jaws.

Successfully complete the game on the "Agent" difficulty setting to unlock Alec Trevlyan (006), Wai Lin, Max Zorin, May Day, and Christmas Jones (dress).

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.

Successfully complete the Cold Reception level on the "00 Agent" difficulty setting with a time less than 3:25 to unlock the Exotic 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.

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.

Successfully complete the Masquerade level on the "00 Agent" difficulty setting with a time less than 4:20 to unlock the Scientist skins.

Successfully complete the Midnight Departure level on the "Agent" difficulty setting with a time less than 3:05 to unlock the Soldier skins.

Successfully complete the Curiour level on the "Secret Agent" difficulty setting with a time less than 2:00 to unlock the Suit skins.

Successfully complete the Thames Chase level on the "00 Agent" difficulty setting with a time less than 4:25 to unlock exotic weapons mode. -From: IMFCIA@aol.com

Successfully complete the Fallen Angel level on the "Secret Agent" difficulty setting with a time less than 2:45 to unlock gadget war 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.