Unlock extra stuff:

Beat the following levels under the specified time to unlock multiplayer levels and more skins:


Subway........Agent.....2:15....Castle level
Masquerade....Agent.....3:15....Air Raid level
Night Watch...00 Agent..2:20....Forest level
Turncoat......Agent.....3:20....Capture The Briefcase level.
Whole game....00 Agent..Any.....Golden Gun level
King's Ransom...Agent...2:20....Team King Of The Hill level.
Cold Reception...Secret Agent...3:15...Sky Rail level
City Of Walkways...Secret Agent...3:45...Covert Skins
Masquerade...00 Agent...4:20...Scientist skins
City Of Walkways...Agent...3:35...Civilian skins
Cold Reception...00 Agent...3:25...Exotic skins
A Sinking Feeling...00 Agent...2:55...Navy skins
Midnight Departure...Agent...3:05...Soldier skins
King's Ransom...Secret Agent...3:45...Security skins
Whole game...Agent...Any...Contemporary Skins
Whole game...Secret Agent...Any...Classic skins
Courier...Secret Agent...2:00...Suit skins
City of Walkways 2...Agent...3:00...Wildfire mode
Thames Chase...00 Agent...4:25...Exotic weapons mode
Fallen Angel...Secret Agent...2:45...Gadget war mode