Cheat Codes:
At the main menu, enter one of the following codes to activate the corresponding cheat:

CHEAT FUNCTION – CHEAT CODE
All cars – ineedmorecars
All tracks – ineedmoremaps
Bonus track – fonekart
Faster race – speedracer
Low gravity – manonthemoon
High gravity – glued
Generate tracks – terraformers
Slippery track – greasy
Small wheels – gokartz
Large wheels – bigfootz
Big heads – bigheadz
Big hands and feet – boxerz

Cheat Codes (In-Game):
While playing the game, enter one of the following codes to activate the corresponding cheat:

CHEAT FUNCTION – CHEAT CODE
Toggle clouds – [Ctrl] H
Toggle fog – [Ctrl] F
Toggle exterior mirrors – [Ctrl] N
Toggle mirror – [Ctrl] M
Toggle interface – [Ctrl] I
Increase view distance – [Ctrl] J
Decrease view distance – [Ctrl] K
View frame rate and ping times – [Ctrl] Z
View coordinates – [Ctrl] C
Alternate map views – [Ctrl] T

Command line parameters:
Start the game with one of the following command line parameters to activate the corresponding cheat:

CHEAT FUNCTION – COMMAND LINE PARAMETER
No FMV sequences – nomovie
Run game in window – nofullscreen
Disable mouse in the game – nomouse
Allow [Alt] [Tab] Windows switching – nomutox