Enter this code at the title screen:

CIRCLE, TRIANGLE, SQUARE, TRIANGLE, X, TRIANGLE, SQUARE, CIRCLE TRIANGLE, X.

Stop Race Timer	800b0a940000
Infinite Boost/Special Move	800c353201a4
Alway First Place	d10c35720000 800c35720001
Have All Cars	800e02bcffff 800e02beffff
Unlock Studio Track	800e02560161
Unlock Arches Track	800e025e0161
Unlock Fraggle Track	800e02660161
Unlock Disco Track	800e026e0161
Mega Jump	800c35880040

Enter this code at the title screen:

X, SQUARE, X, SQUARE, X, SQUARE, TRIANGLE, CIRCLE, X, SQARE.

Enter this code at the title screen:

SQUARE, SQUARE, CIRCLE, CIRCLE, X, CIRCLE, TRIANGLE, CIRCLE, TRIANGLE, SQUARE.

Enter this code at the title screen:

SQUARE, CIRCLE, X, CIRCLE, SQAURE, TRIANGLE, CIRCLE, X, CIRCLE, TRIANGLE.

This code will erase everything you've accumulated so far. Enter this code at the title screen:

TRIANGLE, X, CIRCLE, X, SQUARE, SQUARE, X, CIRCLE, X, TRIANGLE.

This code will unlock all characters and their vehicles. This code will also allow you to interchange the characters and their vehicles. Enter this code at the Title screen:

TRIANGLE, CIRCLE, TRIANGLE, SQUARE, TRIANGLE, X, TRIANGLE, TRIANGLE, X, CIRCLE.

Enter this code at the title screen (the screen that states "Press Start", enter the codes before you hit start):

CIRCLE, TRIANGLE, X, CIRCLE, TRIANGLE, X, CIRCLE, TRIANGLE, SQUARE, X.