Access all GT2 vehicles
In Championship mode, at the GT2 circuit menu, (Teams/Even Select, Save Game, Main Menu) press Z, Right, Z, Z, Z, B, C-Down, A, Right, Start on controller two.
All Sydney tracks
Remove the memory pak from the controller. Then, start a new championship and enter "FROZENSKY" as a name. Accept an offer from one of the two teams. Once you have accepted, return to the main menu, and select a quick race. Choose one of the race modes, and you should have access to any of the Sydney tracks. Return to the main menu, and insert the memory pak. Load your current career to restore all of your game settings. Save your career. Then when the game is reloaded, all six variations of the Sydney tracks should still be available.
All Tracks and Cars
Start a new game in championship mode and enter your name as "races the best." At the next screen appears press Left, Right, Right, Left, Down, Up.
Bonus tracks in quick race mode
Win with a particular car and track to unlock the indicated bonus track. Note: Three of these tracks are not available in championship mode.
Track Car Bonus track
Hawaii A (2 laps) Stallion C Las Vegas CR
Las Vegas A (3 laps) Manta C Sydney CR
Lisbon C (3 laps) Rage C Hawaii C
Lisbon CR (4 laps) Swift C Kyoto B
Hawaii C (2 laps) Rage A Kyoto AR
Change Car Colors
When you are selecting your car, press Z to change its color.
Falcon Interceptor
Successfully complete the game with a gold trophy in all events. Return to the event selection screen and choose the novice cup. Defeat the Falcon Interceptor car in the novice cup races. Then the Falcon Interceptor will be unlocked under the Boss Racing on the team selection screen.
Mirrored Tracks
Press Z button to select a track instead of the A button
Pink car
Start a new game in championship mode and enter IGN64 as a name.