OutRun 2
Select the OutRun Challenge option, select X to enter the Gallery, and select Enter Code. These cheats are case-sensitive:
Unlock All Cars: DREAMING
Unlock All Missions: THEJOURNEY
Unlock All Music: RADIOSEGA
Unlock Bonus Tracks: TIMELESS
Unlock OutRun Classic: NINETEEN86
Unlock Reversed Tracks: DESREVER