Cheat List

You will need all the save slots to do this cheat.  At the copyright screen, press  LEFT, LEFT, RIGHT, R, R to clear all the saves.  Name the saves in this order:

BEST
GAME
EVER

You can now delete the second and thrid saves.  Name these saves as follows for the corresponding cheat:

Cheat                                   Save Game Name
Arcade Level                        EDACRA
All Alternate Vehicles           G6155
Invincible/Infinite Ammo         SUPERSPY