Need for Speed Underground 2 [cheats] At the "Press Enter" screen press the following to activate
the current cheats: 

regmebaby - Gives you 20,000 in career mode to start 
opendoors - Access to whole driving world 
ordermybaby - Access to all cars 
gimmevisual1 - Unlocks Visual Upgrades Tier 1 
gimmevisual2 - Unlock Visual Upgrades Tier 2 
needperformance1 - Unlocks Performance Upgrades Tier 1 
needperformance2 - Unlocks Performance Upgrades Tier 2 
goforoldspice - Unlocks Old Spice Vinyl 
needmybestbuy - Unlocks Best Buy Vinyl 
gotmycingular - Unlocks Cingular Sponsor Vinyl 
gottahavebk - Unlocks Burger King Vinyl 
gottaedge - Unlocks Edge Sponsor Vinyl 
davidchoeart - Unknown 
shinestreetbright - Unknown 
wantmyd3 - Unknown 
wannacapone - Unknown 
gimmechingy - Unknown 
yodogg - Unknown 
tunejapantuning - Unknown 

IMPORTANT: Not all cheats works in Career mode 


-from RVL