Extreme-G
N64

Enter these codes as the player's name (press R at the Bike Selection screen). 
If done correctly you will hear a sound: 
fergus		Face on cycle
roller		Everyone is a rock
xtreme		Fast turbo
antigrav	Upside down tracks
magnify		Magnifies
stealth		Your bike is invisible
fisheye		Fisheye lens
ghostly		Transparent track
wired		Wire frame version
uglymode	Silly graphics
arsenal		Weapons when you need 'em
banana		Super-slippery tracks
nitroid		Infinite turbos
Xgteam 		Face will be on your car (go back and enter a designers name ash, shawn). 

At the Password screen, enter:
81GGD5 for access to all the bikes and tracks


61DDB5 for only the cars Neon and Roach

Thanks to Revolution readers Killerkid0, Blarkin007, Mitch Olsen, and Maximilien


  DeLIBERA!