Enter these at the Main menu

All Cars jump:


Up+S, Up+C, Up+S, Up+C, Up+S, Up+C, Up+S.

End Sequences:
S, C, Left+SELECT, Right + SELECT.

Fish-eye Lens:
S+T+C, L1, L2, R2, R1.

High Voices:
Up, T, Up, T.

Hyper Car:
SELECT+S, SELECT+C, SELECT+S+C.

Interactive tracks:
Down + Start, Up + Start, Select, Start.

Invisable cars:
S+C, L2+R2, S+C, L1+R1, S+C.

Mad Opponents:
Up, Left, Right+SELECT

Mirror Mode:
Left+C, Down+T, Right + S.

Black Porsche:
Right + S, Left + C + Select.

Tune test driver:
Left + C, Right + S+ Select.

Unlimited tries:
L1+L2, R1+R2+S.

User car jumps:
S, C, S.