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Get a free .com domain name or cash for freeafter you complete several offers by email.(Most of these are simple surveys and takes 20 minutes maxto complete them all) Get tons of moneySpace Truckin trackGet more money and power ups on a championship gameFull upgradesCheatsShortcuts
Get tons of moneySent in  by TempestHere'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.
Space Truckin trackSent in by Tips, Codes, Hints, Cheats, and Secrets HunterBeat the sixth season (placing fourth or better) in Championship Mode to unlock and race on the Space Truckin track.
Get more money and power ups on a championship gameSent in by Tips, Codes, Hints, Cheats, and Secrets HunterIn 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.
Full upgradesSent in by Tips, Codes, Hints, Cheats, and Secrets HunterStart 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. 
CheatsSent in by Tips, Codes, Hints, Cheats, and Secrets HunterTo 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, 1Open Bonus Car 2: 0, 3, 1, 2, 1, 0, 2, 3Open Bonus Car 3: 1, 1, 0, 3, 0, 1, 0, 3, 2, 1, 2 Open Normal Cars: 3, 0, 0, 1Open Season 4: 1, 0, 0, 3, 2, 2, 0Open Season 5: 2, 0, 3, 1, 1, 2, 0, 1, 3, 0Alternate Credits: 2, 2, 0, 1Open All Cars: 3, 3, 1, 3, 2, 0, 0, 0, 1Open Season 6: 3, 2, 1, 0, 0, 3, 0, 1, 2, 0, 3, 2, 2Wienermobile Sequence: 3, 1, 2, 0, 1, 1NP Car Sequence: 0, 3, 1, 2, 1, 0, 2, 3Nintendo Logo Car Sequence: 3, 1, 2, 0, 3, 0, 1, 0, 3, 2, 1, 2You should get a smiley face with a rev sound if you do it right.
ShortcutsSent in by Tips, Codes, Hints, Cheats, and Secrets HunterSandy 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.

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