Full weapons:
Enter "Contest" mode and press R at the bike selection screen. Enter 
arsenal (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Unlimited nitros:
Enter "Contest" mode and press R at the bike selection screen. Enter 
nitroid (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Fish-eye lens:
Enter "Contest" mode and press R at the bike selection screen. Enter 
fisheye (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Boulder race:
Enter "Contest" mode and press R at the bike selection screen. Enter 
roller (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Turbo mode:
Enter "Contest" mode and press R at the bike selection screen. Enter 
xtreme (case-sensitive) as a name. A sound will confirm correct 
code entry.

Transparent track:
Enter "Contest" mode and press R at the bike selection screen. Enter 
ghostly (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Slippery track:
Enter "Contest" mode and press R at the bike selection screen. Enter 
banana (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Magnification mode:
Enter "Contest" mode and press R at the bike selection screen. Enter 
magnify (case-sensitive) as a name. A sound will confirm correct 
code entry. 

No gravity:
Enter "Contest" mode and press R at the bike selection screen. Enter 
antigrav (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Invisible mode:
Enter "Contest" mode and press R at the bike selection screen. Enter 
stealth (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Disable MIP mapping and textures:
Enter "Contest" mode and press R at the bike selection screen. Enter 
uglymode (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Wireframe mode:
Enter "Contest" mode and press R at the bike selection screen. Enter 
wired (case-sensitive) as a name. A sound will confirm correct 
code entry. 

Quick race finish:
Enter RA50 as a name. A sound will confirm correct code entry. Begin 
a race and quit during game play. 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 XGTEAM as a name. A sound will confirm correct code entry. 
Return to the name entry screen and enter the first name of one of 
the game's developers, from the credits. Some choices are Ash, Greg, 
John, Shawn, and Justin. The faces of the developers will now appear 
on the bikes. 

Fergus mode:
Enter FERGUS as a name and begin shoot 'em up mode. Fergus' face 
will now appear on the drones. 

Roach motorcycle:
Complete the Meltdown circuit at the intermediate difficulty level. Alternatively, 
enter 51GG95 as a password for the Roach and all tracks. 

Neon motorcycle:
Complete the Meltdown circuit at the expert difficulty level. Alternatively, enter 
61GGB5 as a password for the Roach, Neon, and all tracks. 

Bonus track:
Complete the Meltdown circuit at the extreme difficulty level with a bike other 
than the Roach or Neon and finish first on all tracks. A small bonus track will 
be available in single and multi-player modes. Alternatively, enter 81GGD5 as 
a password for the Roach, Neon, and all tracks including the bonus track.