Rollcage 

Type these cheat-codes in any menu you like. You will hear a sound when typed correctly. 
Type the cheat again to disable. Cheats are written to the registry, so the will be available next time you play the game. 

IAMALAZYBASTARD - Debug Menu
WARPSPEEDMRSULU - Hyper Speed
WRECKEDONSPEED - Mega Speed
REFLECTIONS - Mirror Mode
GIVEMESCORPIO - Scorpio League
GIVEMETAURUS - Taurus League
JACKIMFLYING - High Gravity
FLYMETOTHEMOON - Medium Gravity
BRINGMEBACKTOEARTH - Restore Normal Gravity
TROTTERS - Expert Difficulty
BIGANDPINK - Hard Difficulty 
BILLYTHEWHIZZ - Unknown
NETWORKFUN - Unknown
SNAR - Unknown

Enter one of the codes below at the main menu or while game play 
is paused to activate the following function:

Function - Code

Toggle debug menu - iamalazybastard 
High gravity - jackimflying 
Medium gravity - flymetothemoon 
Restore normal gravity - bringmebackdowntoearth 
Expert difficulty - trotters 
Hard difficulty - bigandpink 
Scorpio League - givemescorpio 
Taurus league - givemetaurus 
Mirror mode - reflections