Unlock All Tracks/Seasons:

Goto the "Title Screen" and enter the following: up, left, down, right, B, A, B, right, down

Change Car Color:

Press "L" when choosing a car.

Change Track Detail(decrease):

When choosing a track or at the "mode selection screen" press "Y" or "R".

Frame Rate Increase:

Goto the "Main Menu" and enter the following: up, A, down, down, left, right, B, B

Hidden Track:

Play and finish first for each year in 10 Year Championship mode and the hidden track will become available.

Unlock All Cars:

Goto the "Title Screen" and enter the following: up, down, up, B, A, left, B, B, down

Unlock Xtra 12 Cars:

Play and finish first in 10 Year Championship Mode, and a car will be unlocked for the corresponding year:

Year One:

Subaru Impreza 555

Year Two:

Mitsubishi Lancer EVO 4

Year Three:

Toyota Celica GTFour ST185

Year Four:

Mitsubishi Lancer EVO 3

Year Five:

Peugeot 106 Maxi

Year Six:

Lancia Delta Integrale

Year Seven:

Fiat 131 Abarth

Year Eight:

Peugeot 205 Turbo

Year Nine:

Renault Alpine A110

Year Ten:

LANCIA 037 Rally