Cheat Codes for Need for Speed: Underground Game Platform Dreamcast Game Boy Advance & SP Game Boy Color GameCube Nintendo 64 Nintendo DS Nintendo Wii PlayStation PlayStation2 PlayStation3 Sony PSP XBox For Need for Speed Underground on the Xbox, GameFAQs has 11 guides and walkthroughs. Need For Speed: Underground Cheats, Codes, Cheat Codes for Xbox (XB) Published: November 23, 2003 by Cheat Code Central Staff. Need For Speed: Underground All circuit tracks At the main menu, press Down, R(3), Black(3), X to unlock […] Performance tuner cars with the latest title in the hit Need for Speed series: Need for Speed Underground. Take on today's most popular tuner cars from Mitsubishi Motors, Subaru, Toyota and many more, building the ultimate street machine by earning cash to pay for custom body kits and a host of licensed car performance mods. The following are known Action Replay Codes for Need for Speed: Underground on Nintendo GameCube (GCN). Master Code – Must Be On. 0MDH-4D7F-ZZ4XN. 47WB-0UK0-YEHDH. Max/Infinite Money. 1Q90-HAH0-5MZ4T. U9YW-AEP9-P2DYG. Idiot AI: Race Modes. 85C3-DDGP-KTH6P. To do this, simply have a Need For Speed Underground 2 save file on your Hard drive and when you go to select your first car, you will get a message saying that you have been given more money to Need for Speed Underground. Black Box Nov 17, 2003. Rate this game. Related Guides. Overview Guide GCN Cheats Xbox Cheats. Reviews • Best Picks • Starfield The cheats are entered at the main menu.Whowever you get no message for activating it.Just go check the corresponding area where the cheat should have worked Crhis224 - 13 years ago - report 1 0 Xbox Cheats. This page contains a list of cheats, codes, Easter eggs, tips, and other secrets for Need for Speed Underground for Xbox. If you've discovered a cheat you'd like to add Need for Speed Underground at IGN: walkthroughs, items, maps, video tips, and strategies hVubSvK.