PS1
Bonus Cars
9 New Cars- Finish in 1st place in the end of year championship race in each of 3 levels in NC mode. 3 bonus cars per level
6 Bonus Cars- Finish in 2nd or 3rd place using NC mode in the end of year championship race. unlock 2 cars per level
3 Bonus Cars- Finish in 4th, 5th or 6th place in the end of year championship race in all 3 levels using NC mode. unlock 1 car per level
Additional cars- Complete the same sequences above using TC mode
PS1
B&W Graphics
Hold Select and then enter the following sequence Right(4 times), Up(4 times), Down, Right, Up, Down, Right, Up, Left at the main menu
PS1
Make Wider Turns
Hold Circle and then enter the following sequence Down(2 times), Left, Down(3 times), Left, Down, Up, Down, Right, Left, Right, Left, Up at the main menu
PS1
Transparent Car
Hold Start and then enter the following sequence Up(2 times), Right, Left, Down, Down, Left, Up, Right(2 times), Up, Down, Left(2 times), Down at the main menu
PS1
Huge Tracks
Hold X + Select and then enter the following sequence Right, Down, Left, Up, Right, Down, Left, Up, Down, Right, Up, Left, Down, Right, Up at the main menu
PS1
Low Gravity
Hold Circle + Start press Right, Up, Down, Left, Right, Up, Down, Left, Right, Up, Down, Left, Right, Up, Left at the main menu
PS1
SD Cars
Hold X and then enter the following sequence Right(2 times), Up(2 times), Down, Left, Down, Left, Right, Up, Down, Left, Right, Up, Right at the main menu