These cheats are meant to be used to enhance and extend gameplay.

Castle level
Successfully complete the subway single-player level on the Agent difficulty setting with a time less than 2:15 to unlock the Castle multiplayer level.

Team King of the Hill level
Successfully complete the King's Ransom single-player level on the Agent difficulty setting with a time less than 2:20 to unlock the Team King of the Hill multiplayer level.

Sky Rail level
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 level.

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 level on the Secret Agent difficulty setting with a time less than 3:45.

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

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

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

Wildfire mode
Successfully complete the City of Walkways 2 level on the Agent difficulty setting with a time less than 3:00.