Extreme-G 

Full weapons 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "arsenal" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Infinite nitros 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "nitroid" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Transparent track 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "ghostly" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Slippery track 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "banana" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Invisible mode 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "stealth" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Turbo mode 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "xtreme" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Magnification mode 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "magnify" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Wireframe mode 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "wired" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Fish-eye lens 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "fisheye" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Boulder race 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "roller" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

No gravity 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "antigrav" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Disable MIP mapping and textures 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "uglymode" (case-sensitive) as a name.
If you entered the code correctly, you will hear a sound.

Quick race finish 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "RA50" as a name.
If you entered the code correctly, you will hear a sound. 
Then, begin a race and quit during game play.
Now the race will complete with a finishing position the same as whatever place your bike was,
when the quit option was selected.

Extreme Team racers 
Enter "Contest" mode:
then at the bike selection screen, press R. Then, enter "XGTEAM" as a name.
If you entered the code correctly, you will hear a sound. 
Then, return to the name entry screen and enter the first name of one of the game's developers, from the credits.
Some choices are Andy, Ash, Craig, Darren, Giles, Greg, Joe, John, Jon, Justin, Lloyd, Sadie, Shawn, Simon, Steve,
and Omri. Now the faces of the developers will appear on the bikes.

Fergus mode 
Enter "Contest" mode, then at the bike selection screen, press R. Then, enter 
"FERGUS" as a name and begin shoot 'em up mode. Then, Fergus' face will now 
appear on the drones.

Roach motorcycle 
enter "51GG95 as a password for the Roach and all tracks.

Neon motorcyle 
enter "61GGB5" as a password for the Roach, Neon, and all tracks.

Bonus track 
enter "81GGD5" as a password for the Roach, Neon, and all tracks including the bonus track.

Bike inspection 
Enter the bike selection screen:
Then, press C-Left or C-Right to speed up, slow down, and stop the slow rotation of the bikes.
Press C-Up or C-Down to tip the bikes to view the tops and bottoms.