Misplace mode
Enter MISPLACE as a name at the bike selection screen.

Wireframe Mode
Enter your name as LINEAR to activate wireframe mode. To deactivate the code, enter it as your name a second time. Spiraling screen:
Enter SPIRAL as a name at the bike selection screen.

Wipeout Mode
For those that love Wipeout this one is for you. Start a contest and enter your name as "2064" at the name entry screen. This will convert your motorcycles into futuristic planes.

Wasp Superbike
Looking for the second superbike? Finish the Contest Mode on Critical Mass difficulty, and you'll be able to drive the Wasp. You can also enter the password: 55Hz1MH3H9H1.

Venom Superbike
If you want to race as Hotra Toxic with her super-fast Venom Bike, come in first on the Atomic Contest -- or, if you're too lazy, enter the password: 868QCMH3H9HT.

Unlimited Weapons
Enter your name as MISTAKE for unlimited weapons. To deactivate the code, enter it as your name a second time.

Unlimited Shields and Lasers
Enter your name as XCHARGE for unlimited shields and lasers. To deactivate the code, enter it as your name a second time.

Unlimited Nitro
Enter your name as NITROID for unlimited nitros. To deactivate the code, enter it as your name a second time.

Ugly Mode
To disable antialiasing, enter your name as PIXIE. To deactivate the code, enter it as your name a second time.

Tron Mode
Enter your name as NEUTRON to activate Tron mode. To deactivate the code, enter it as your name a second time.

Super Speed
If the game isn't fast enough for you, enter your name as XXX.

Mirror Mode
Enter the password: HS3B9BQ9DGPL

Spectre bike
Enter the password: HSFDCCV611FV

More Multiplayer Levels
Enter the Venom or Wasp Superbike codes, then enter the password N31GG76CG9DZ

All tracks
Enter the password: 8KLSZKW76ZM7

All bikes
Enter the password: 3GP8ZKW76ZMW

All bikes, tracks, and duel mode
Enter the password: W7LRGCQ9D6P5

Blurry Mode
Enter your name as FLICK.