Misplace
Start a Contest and enter your name as "MISPLACE" at the name entry screen (not the password screen). You can access name entry by pressing R at the bike selection screen.

Get Sick
Enter your name as SPIRAL and the screen will constatly spiral while you race. Enter again to deactivate

Magnify Mode
Enter your name as FLICK and the screen will be blurred while you race. Enter again to deactivate

Dual Mode and Spectre Bike
Enter "HSFDCCV611FV" as a password.

Mirror Mode
Enter "HS3B9BQ9DGPL" as a password.

All Super bikes+race with drivers+alien x racer
Just enter this code and you will get access to three super bikes!!! ALSO.. you will get to race the drivers of the XG2 bikes...not in there cars BUT by themselves....plus you get an alen x runer....Its SO COOL!!!

SP BIKES AND DRIVERS CODE:
JTHKBZDVMBLP

Ultimate Cheat
To get the ultimate cheat for the best bike and the level select. you need to start the game then go to options. after that go to password and enter this code. 25PMM6B2G9CH. if you do this correctly you should here the game say Extreme and the words "password Accpeted" should apere on the screen. then go to choose a bike and you shold have 2 super bikes and 1 alien bike.

No Panels
Enter your name as NOPANELS and the screen will be blurred while you race. Enter again to deactivate

Satellite View
Enter your name as SPYEYE at the name entry screen (NOT the password screen) which can be reached from the bike selection screen in Contest mode, and you will be able to play XG2 in overhead view.

Get the Venom Bike
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 following password:
68QCMH3H9HT

Get the Wasp Superbike
Get 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 following password:
55Hz1MH3H9H1

More Multi-Player Levels
Enable the Venom Bike and Wasp Superbike codes above then put in the following password N31GG76CG9DZ

Get the Spectre Superbike
Finish the Extreme Contest-Meltdown with a overall of 1st place. Or put in the following password 3GP8ZKW76ZMW

All Tracks
Enter "8KLSZKW76ZM7" as a password.

WIPEOUT
Enter your name as wipeout and drive a spaceship from the game wipeout
This Info submitted by ppap on Wednesday, October 13, 1999 at 15:25:24

More Codes
Enter "Extreme Contest" then at the bike selection screen press R, then enter a code below:

Code Effect
ROLLER Boulder Race
2064 Jet Bike
XXX Turbo Mode
XCHARGE Infinite Weapons and shields
MISTAKE Infinite Weapons
NITROID Infinite Nitros
PIXIE Pixilated Graphics
LINEAR Wireframe Mode
JUGGLE ??
SPYEYE Overhead View
NEUTRON TRON Mode
SPIRAL Makes Screen Spiral
FLICK Magnification Mode
RA50 Level Skip Use 'go' option at placing screen to advance