All tracks On the Start screen, hold L and R and press: Up, Right and B. GET All cars On the Start screen, hold L and R and press: Up, Left and B. GET All tune-ups On the Start screen, hold L and R and press: Down, Right and B. UNLOCK Extra Mode On the Start screen, hold L and R and press: Right and B. View credits On the Start screen, hold L and R and press: Up and B.