Extreme G

Play as a boulder
Enter your name as 'roller'.

Access all levels and 2 extra bikes
Enter the password 81GGD5.

Quit and still win
Type in your name as 'RA50'.(Take out the'')Then when you
quit a race, you will ifnish in whatever position you were
in when you quitted.

Shoot Fergus
Enter your name as FERGUS , then go to shoot 'em up mode,
and the programmer Fergus' head will appear on the drone bikes.

Weapons when you want
Type your name as 'aresenal'

Slippery track
Enter your name as banana

Turbo Boost
Enter your name as 'nitroid' and get unlimited turbo boosts

Even faster mode
Enter your name as 'xtreme'

Race upside down
enter your name as 'antigrav'

Stealth Mode
Enter your name as 'stealth' and the drivers will disappear.

Make the screen go by faster
Enter your name as 'fisheye'