CHAR
Unlock All Tracks
Enter the following code at the Cheats option (under the Options Menu) to unlock all tracks in the game:
TRACK
Unlock Everything
Don't want to bother entering single codes? Then let's get right to it. Enter the following code at the Cheats option (under the Options Menu) to unlock everything at once.
CHEESFISH
Dbdbdbdbdb that's all folks!
Various Codes
All of the following cheats will unlock everything in the entire game. Before you go and start at the top of the list entering a bunch of codes you should note that we've also got a single code that unlocks everything in the game, a single cheat that unlocks all the tracks and one that unlocks both hidden characters at once. To find them, scroll down.
To enter the codes first enter the Options Menu and then highlight and enter the Cheats option. From the Cheats screen enter the following cheats. You will hear Yosemite Sam say something if you did it correctly.