Nintendo Gamecube - Need For Speed: Underground Cheats NFS Underground Cheats Enter the following codes at the Main Menu: Unlock All Circuit Tracks DOWN (R x3) (X x3) Z Unlock All Sprint Tracks UP (X x3) RIGHT (DOWN x3) Unlock Drift Physics for all Modes RIGHT (UP x3) (DoWN x3) LEFT Unlockable Courses - To unlock the following bonus courses complete corresponding events. Alpine Trail Championship Event 22 / Ultimate Racer Event 15 Ancient Ruins II Ultimate Racer Event 12 Autumn Crossing Ultimate Racer Event 17 Autumn Crossing II Ultimate Racer Event 14 Calypso Coast Ultimate Racer Event 10 Calypso Coast II Ultimate Racer Event 26 Coastal Parklands Championship Event 4 Desert Heat II Championship Event 25 Fall Winds II Championship Event 24 Island Outskirts II Championship Event 8 Mediterranean Paradise II Championship Event 14 National Forest Championship Event 1 National Forest II Ultimate Racer Event 6 Outback Championship Event 11 Outback II Ultimate Racer Event 25 Palm City Ultimate Racer Event 28 Palm City II Ultimate Racer Event 29 Rocky Canyons Championship Event 27 Rocky Canyons II Championship Event 9 Scenic Drive II Championship Event 6 Tropical Circuit Championship Event 29 Tropical Circuit II Championship Event 28 Have both the Katana and Dual GT Spoiler: Play through the game normally, and once you beat Samantha's Big Tease (#77), pick the Katana Unique Spoiler. Now, to get the Dual GT, trade in your car for a Peugot 206. Then, trade your car back to what you had and now your car has Dual GT as the spoiler. To switch back for the Katana Spoiler, just go to spoilers and scroll all the way to the end, and there's the Katana spoiler! Once you do this, you now will have both Katana and Dual GT in the customize ride from the main menu.

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