James Bond 007 Nightfire:
Faster:
To go faster in enemies vanquished press pause and hold down L then press X B B Xthen release L then you should go scorching fast!! 

Upgrades:

Type in magazine p2k2000 photon liftoff and sesame aup2k

magazine-makes your sniper zoom in more by pressing up on the d-pad
p2k2000-your pp7 will turn into a golden p2k
photon-your laser will charge and melt stuff faster
sesame-once you got the first number the rest will go fast
aup2k-turns pck to gold 

Power Passwords:
In the options sceen go to the screet unlocks menu and input these passwords:

target = gold p2k [the best upgrade]
passport = all missons unlocked
party = all multyplayer skin unlocked

Enter any code in the code name section.

Level Select
PASSPORT
Uplink Mode
TRANSMIT
Demolition Mode
TNT
Baron Samedi
VOODOO
Goldfinger
MIDAS
Jaws
DENTAL
Oddjob
BOWLER
Scaramanga
ASSASIN 

Get an SUV:
On the enemies vanquished level, during racing, push pause, Hold L and press X,B,Y,X,Y 

Get Shelby Cobra:
On Enemies Vanquished level pause the game, hold L, press Right Right left left up 

Put in any of the following codes for the corresponding effect... 

Assassination Mode - SCOPE 
Demolition Mode - TNT 
Equinox Level - VACUUM 
Faster Laser - PHOTON 
Goldeneye Strike - ORBIT 
Pick level - PASSPORT 
Protection Mode - GUARDIAN 
Unlock Baron Samedi for Multiplayer - VOODOO 
Unlock Christmas Jones for Multiplayer - NUCLEAR 
Unlock Explosive Scenery - BOOM 
Unlock Goldfinger for Multiplayer - MIDAS 
Unlock Jaws for Multiplayer - DENTAL 
Unlock Max Zorin for Multiplayer - BLIMP 
Unlock Miss Galore for Multiplayer - CIRCUS 
Unlock Oddjob for Multiplayer - BOWLER 
Unlock Scaramonger for Multiplayer - ASSASSIN or VACUUM
Unlock Tuxedo for Multiplayer - BLACKTIE 
Unlock Xenia for Multiplayer - JANUS 
Uplink Mode - TRANSMIT 
aup2k-goldenp2k
party-all multyplayer characters
gameroom-all multyplayer modes
passport-all levels 

For Quadruple armour,pause game, hold L and press,B,Y,X,Bx4. 

For super bullets while racing hold L and press B four times. 

All hard core NASCAR fans: this code ain't 4 u.

In 'Enemies Vanquished', pause and hold left trigger and press b,b,x,x,y

this will start a race against an enemy car through the alps. cool thing is u can race in Dominque's car (in paris prelude).