Speed Racer Cheats

Cheat Codes
Enter the following cheat codes in the "Enter Code" screen of the "Options" menu to enable them. Enter the code again to disable them.

[Up], [Left], [Down], [Right], [Up], [Left], [Down]: Aggressive Opponents
[B], [Up], [-], [+], [1], [Up], [+]: Granite Car
[-], [Up], [-], [2], [-], [Up], [-]: Helium
[A], [B], [A], [Up], [Left], [Down], [Right]: Invulnerability
[B], [Up], [-], [2], [B], [Up], [-]: Monster Truck
[Up], [+], [Up], [Right], [-], [Up], [-]: Moon Gravity
[A], [-], [+], [Down], [Up], [+], [1]: Overkill
[Up], [Right], [Down], [Left], [Up], [Right], [Down]: Pacifist Opponents (Other Racers dont attack you)
[Left], [A], [Right], [Down], [B], [Up], [-]: Psychedelic
[B], [A], [Left], [Down], [-], [Up], [-]: Tiny Opponents
[B], [A], [Down], [Up], [B], [A], [Down]: Unlimited Boost
[1], [2], [1], [2], [B], [A], [+]: Unlock the Last 3 Cars

Unlockable Racers
All championships must be completed with a ranking of 3rd or higher to unlock the corresponding racer and move onto the next championship.

Grey Ghost: Complete Class 1, Championship 3
Kellie "Gearbox" Kalinkov: Complete Class 2, Championship 4
Nitro Venderhoss: Complete Class 2, Championship 5
Prince Kabala: Complete Class 2, Championship 3
Rosey Blaze: Complete Class 1, Championship 1
Snake Oiler: Complete Class 1, Championship 2
Sonic "Boom Boom" Renaldi: Complete Class 2, Championship 2
Taejo Togokahn: Complete Class 2, Championship 1

Unlockable Class 4 (Mirror Mode) Races
By defeating all of the championships in the game, you will unlock Class 4 races (called Mirror Mode). Keep in mind that whenever you defeat a Class 4 (Mirror Mode) race, you will get a cheat code.