Select the Codenames option, then enter the codes at the Secrets Screen. Save your Codename after entering the code.

All multi-player options - GAMEROOM
Unlock Assassination option - TARGET
Unlock Demolition option - TNT
Unlock Explosive Scenery option - BOOM
Unlock GoldenEye Strike option - ORBIT
Unlock Protection option - GUARDIAN
Unlock Team King Of The Hill - TEAMWORK
Unlock Uplink option - TRANSMIT
Unlock all characters - PARTY
Unlock Baron Samedi - VOODOO
Unlock Bond Spacesuit - ZERO G
Unlock Bond Tuxedo - BLACKTIE
Unlock Christmas Jones - NUCLEAR
Unlock Drake - NUMBER 1
Unlock Elektra King - SLICKUnlock Goldfinger - MIDAS
Unlock Jaws - DENTAL
Unlock Max Zorin - BLIMP
Unlock Mayday - BADGIRL
Unlock Nick Nack - BITESIZE
Unlock Oddjob - BOWLER
Unlock Pussy Galore - CIRCUS
Unlock Renard - HEADCASE
Unlock Scaramanga - ASSASSIN
Unlock Wai Lin - MARTIAL
Unlock Xenia Onatopp - JANUS