Sent in by Tempest
Here's a trick to get tons of money.
1. Start a new championship. Use the best car you can.
2. Finish one race (getting money is not necessary)
3. When you return to the upgrade screen, purchase the worst possible car.
4. Start a new race, pause, and select exit.
5. Select Championship, and pick the best car you can.
You should now have all the cash that you had prior to exiting the race,
as well as the best car you could pick. Repeat as many times as necessary.
Sent in by Code Hunter
In championship mode, the amount of money you have and the number
of upgrades your car has is saved into the game's memory but each
time you start the game you get to chose your car. This means that
there's a simple way to get more money and power ups on a
championship game.
Sent in by Code Hunter
Start the championship game again and chose the best car available
(it should be the one you have bought and sold). You now have full
upgrades for this car and loads of spare cash -- probably enough to
buy the next car.
This cheat works even better in multiplayer as only one player has to
buy a car for all of the players to be able to select it.
Sent in by Code Hunter
To enter the cheats below, go to the main menu screen. There are four options
(Championship, Versus, Setup, Credits). Imagine these options are
numbered 0 to 3. Input the following sequence (by pressing the Z trigger)
while positioning the menu cursor (via Control Stick) at the appropriate
menu items. If you mess up you can enter a menu item and return to the
main menu to reset.
Open Bonus Car 1: 3, 1, 2, 0, 1, 1
Open Bonus Car 2: 0, 3, 1, 2, 1, 0, 2, 3
Open Bonus Car 3: 1, 1, 0, 3, 0, 1, 0, 3, 2, 1, 2
Open Normal Cars: 3, 0, 0, 1
Open Season 4: 1, 0, 0, 3, 2, 2, 0
Open Season 5: 2, 0, 3, 1, 1, 2, 0, 1, 3, 0
Alternate Credits: 2, 2, 0, 1
Open All Cars: 3, 3, 1, 3, 2, 0, 0, 0, 1
Open Season 6: 3, 2, 1, 0, 0, 3, 0, 1, 2, 0, 3, 2, 2
Wienermobile Sequence: 3, 1, 2, 0, 1, 1
NP Car Sequence: 0, 3, 1, 2, 1, 0, 2, 3
Nintendo Logo Car Sequence: 3, 1, 2, 0, 3, 0, 1, 0, 3, 2, 1, 2
You should get a smiley face with a rev sound if you do it right.
Sent in by Code Hunter
Sandy Beaches - If you want to get a good place on the sandy beaches
level listen up. If you go through the waterfall that is one shortcut. But
if you veer left and accelerate to a fast enough speed, you can launch
yourself over the guard rail and into a lake. Sometimes you may pop up
as close to the finish line as the last nitro but sometimes as far away
as just around the corner.
NOTE: Make sure not to jump backwards because you may get sent back to
the tunnel that is through the waterfall.