1. Turn on the game and press Start on controller one untill you see the screen that says "Press Start" (If you see "Grand Prix Mode" then you are too far)
2. On controller two, press UP on the D-Pad, Cdown, R, L, and Z all at the same time. Them release them.
3. Immediately press Start or the A-Button on controller one to enter the Grand Prix. All tracks and cars should now be available (in all modes). If you can't get this trick to work (it takes most people a couple of tries to get it), do step two a couple of times (press all the buttons a couple of times.)

To get the China Town Jam Track, you must race in Grand Prix mode with the difficulty level set to EXPERT. Beat the game with a first place ranking on each course and the new track will be available.

To get this cool hidden bonus vehicle, an N64 controller, choose the Time Attack Mode. If you get a race time that ends in .046 seconds, the control pad will become available. This trick is quite tough to do.

To gain the Prowler, you need to finish the game in first place on expert difficulty using the Hornet car.

To gain the Dominator, you need to finish the game in first place on expert difficulty using the Black Lightning.

To gain the Reaper, you need to finish the game in first place on expert difficulty using the Shredder.

To gain theVengeance, you need to finish the game in first place on expert difficulty using the Avenger.

To get the Neo Speed Way Track, you must race in Grand Prix mode with the difficulty level set to intermediate. Beat the game with a first place ranking on each course and the new track will be available.

One of the essential tricks to win tracks is the turbo boost. Hold down the A button during the race and drift hard left or hard right holding Z. Let go of both buttons and you will get a nice little boost. Practice the boost until you can do it perfectly - now you can win without a problem.