NGEN Racing cheats, and Codes for PSX.
From the Main Menu, press R1, R2, L1, L2, L2, L1, R2, R1 to unlock more jets in NGEN mode. Alternately, Complete both circuits of any type in first place to unlock a secret jet.
400 million credits
From the Main Menu, press R2, L2, R2, L1, R2, R1, R2, L1.
Reversed lights: The port side light is green when it is supposed to be red, and the starboard side is red when it is supposed to be green.