Need for Speed Underground Cheats for GameCube

When I was doing drag racing, I had lots of trouble. I didn't know what to do. And it was supposed to be the fastest race. But now I figured out what to do. Just hold R. On the top, different colored circles come. When it's green, click Y and you'll go faster. Also use NOS if it's installed onto your car.

Hi and the cheat for infinite nos is down,down,left,right,X,Y,right,left.
And I havent tested this one out (if it doesnt work the keep trying but if it still doesnt work don't use it anymore)
All cars- X, Y, down, up, left, B

Hope they work and enjoy!!!!!!!!!
Have fun cheating

In the begining of a race when the girl is swinging her arms hold R and you should slightly move foreward but remember to let go when the girl puts her arms down.

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
Once you have found an opponent to outrun with, get in front of the opponent and get in the lead. Get as far as possible until the distance meter has reached it's limit. If the distance meter starts to drop, it indicates that the opponent is catching up. When this happens, do a handbrake skid and turn the car around. Go back the way that you came from. The opponent will follow you as you are the one in lead, but he will take time to catch up, giving you an advantage to win the outrun.
If you are in front of an opponent but cannot seem to lose him, head toward the center of the city (the area that has the five fountains). Once there, weave through the fountains. Your opponent will most likely crash into one of the fountains, giving you an easy win. Note: Practice going through the fountains first before you attempt an outrun so you do not lose your money. It is easier to do this in an SUV because it will not reach a high speed before you reach the fountains.
Find an outrun opponent then get right behind him. Draft him or her so that you can get a full tank of NOS, if desired. Then, start to spin out your opponent. You can do this by getting directly next to the car and turning into it's back corner. While it is sideways or backwards, you can hit press Up to start the outrun. You will have a large head start because your opponent needs to turn around. You can win in under 15 seconds by doing this.
This trick requires that most of the city is unlocked. Get your car and get on the highway that leads around in a oval-like way. Challenge people on the highway for a much better chance of winning, since top speeds are better and there are less turns than the normal roads (so you do not slow down as much).
This trick requires a fast accelerating car. Drive to the airport where you first start the game, Next, find an opponent to race. While racing the opponent, make sure you get into the lead then go onto a little ramp the leads to a road just alongside the airport. After going down that road, you should be at an intersection where you can go left or straight. Take a left turn, then go straight down that road, which should be a parking lot. Once your opponent tries to catch up to you and gets close to the intersection, he will go straight instead of turning. This will give you a large lead and an easy win.
Start race with a full bar of nitrous. Come up from behind your opponent and draft until the nitrous is full, then do a tailspin maneuver. Do this by clipping the back bumper of your opponent, which sends them into the wall or in reverse. They will end up facing the wrong direction, giving you the advantage.
Find an opponent and draft behind them until you have full NOS (for backup, if you have at least a dryshot installed). When it is full, pull up next to them. Wait until you can challenge them, then start it. Then, ram your opponent at the rear tire. Keep pushing and to cause them to wipe out and stop, or crash into a wall. Then just drive off on a long straight road and use your saved up NOS. If you do not win it, you will at least have a very nice lead.
Winning Street X
In order to win Street X, you must take the turns wide at first then sharpen up your turns. This will help you add to your lead, and most likely you will win.
Easier turns in URL races
Notice that before the sharp turns during the URL races, there are a set of numbers that countdown to 1. Follow those numbers to perfect your sharp turn into a groove to speed through faster. Keep accelerating until you reach "1", then slam on the brakes and turn. Once perfected, this can help you get through the turns with more speed. Additionally, in URL races, the CPU will try to spin you a lot. W..

All Drag Tracks:
Right, Z, Left, R, Z, L, Y, X.
ALL Drift Tracks:
Left(4), Right, X, R, Y.
Extra Style Points in Drift:
Pause the game at the moment you impact a wall during any Drift competition and when you unpause the game you will have been rewarded with free Style points.
All Circuit Tracks
Press the following combination at the Main menu:
Down, R(3), X(3), Z.
All Sprint Tracks
Press the following combination at the Main menu:
Up, X(3), R, Down(3).
Drift Physics for All Cars
Press the following combination at the Main menu:
R, Up(3), Down(3) L.

You Have To Make The Shift Perfect To Get Head Start...!

easy drift points:
Simply stay behind a car and watch the points rack up.
Unlock all sprint tracks:
Go to the main menu then hit up, X, X, X, R, down, down, down.
easier drag wins:
To get to higher gears quicker in drag races, tap L repeatedly to increase the revs to the appropriate level to switch gears.
Unlock all drift tracks:
Press Left(4), Right, X, R, Y at the main menu.
Unlock all circuit tracks:
Go to the main menu then hit down, R, R, R, X, X, X, Z.
Unlock drift Physics on all cars:
Go to the main menu then hit R, up, up, up, down, down, down, L.
Unlock All drag tracks:
Press Right, Z, Left, R, Z, L, Y, X at the main menu.