hit the '~' key to bring up the console and enter the following:

Start the game with the -DEVMODE command line parameter. One way to do this is to make a shortcut to the game on your desktop and right click the shortcut and edit the properties. Then before the ending " put in the -DEVMODE option and click ok. Then, press one of the following keys during game play to activate the corresponding cheat function. Note: When in developer mode, all levels will also be unlocked.

If you park a buggy in an unsafe spot, such as on a flight of stairs in the Fort level, eventually a pig will get in and drive it back to the road and park it. Be careful, the pig will run you over if you get in the way.

At the character selection screen where you enter your name, type one of the below for different colored letters:
$0 = Black
$1 = White
$2 = Blue
$3 = Green
$4 = Red
$5 = Light Blue
$6 = Yellow
$7 = Pink
$8 = Orange
$9 = Gray

For example, if your name was ''BOB'' and you wanted each letter to be a diffrent color like yellow, black then orange. You would type it like this:

$6B$0O$9B