All cars
Press [Triangle], [Square]x2, [X],
[R1] at the options screen. A sound will confirm correct
code entry.
Truck
Select any car, then hold [L1] until the race
begins.
Buggy
Select any car, then hold [R1] until the race
begins.
Hidden car
Select any car, then hold [R1] + [R2] until
the race begins.
Various cars
Select any car, then press [Down] at the transmission
selection screen to cycle between a low rider, bus, rocket engine
car, taxi, and police car. Note: The number of cars that are selectable
will vary depending on how many keys have been found. To drive
the police car, circuit mode must be completed.
Additionally, press [Circle] at the car selection screen
to access four more vehicles, including a Viper, hippy van, VW
Beetle, and McClaren.
UFO
Hold [R1] + [R2] + [L1] + [L2]
at the car selection screen and choose a car. Keep those buttons
held and press [X] at the transmission selection screen.
Then, hold [Triangle] until the race begins.
Alternate car colors
Press [Square] at the car selection screen.
Reversed tracks
Complete circuit mode to unlock an option for forward
and reversed tracks.
Stunt mode
Complete tournament mode to access a stunt mode option
on the Golden Gate track.