Before you can do anything, you must win the Burger King Challenge. Once you win it, you will unlock all unique parts (also called Junkman parts). Get any car and put all the parts on it except performance. Once you have your car the way you desire, go to the performance shop. Max out your car, then put the Junkman parts on. Max out your car again. To unlock cheat codes on the Xbox version, go to options mode, then cheat codes and input desired cheat code. greasemonkey: unlocks all car ability upgrades. hotwired: unlocks all cars for arcade mode. theworldismine: unlocks all locations for arcade mode. Sports Compact Car: get 8 wins in stage 2: Street Car Magazine: get 2 wins in stage 3: Street Car Magazine: Get 9 wins in stage 5: Street Tuner: Get 34 wins in stage 5: Stuff Magazine: Discuss editing Need for Speed Underground 2. 2 posts • Page 1 of 1. joystixLV Ricer Posts: 35 ↳ The Cars; ↳ Your Rides; ↳ The Games; To unlock it, just Compplete Championship Event 24. Track: Alpine Trail To unlock it, just Complete Championship Event 22. Track: Autumn Crossing II To unlock it, just Complete Ultimate Racer Save the game. Then buy and modify the VW Golf to the maximum and trade it in for the Honda S2000 for a gain of about $1500. Take the Honda to the garage and demodify it (strip the parts) and If you entered the code correctly, you will hear a sound. Go to “Quick Race” and press L or R until “Sponsor Cars” appears in the top right corner of the car selection screen. Original Need For Speed: Underground drift races . Win all Street X races to unlock the drift races from the original Need For Speed: Underground . Winning an outrun PlayStation 2. Enter the following codes at the main menu (not all work in career mode): Up, Down, Up, Down, Down, Up, Right - Best Buy Car; Left, Left, Right, Square, Square, Right, L1, R1 - $1000 in career, RX-8 and Skyline in Quick Race For Need for Speed Underground 2 on the GameCube, GameFAQs has 60 cheat codes and secrets. Unlock All Cars, Tracks, Unlockable Cars PC. Cheats; Underground 2. Need For Speed Underground 2. Need For Speed Underground 2; Downloads; All Cars and Parts Unlocked Save Game Need For Speed Underground s3Rm.