The codes should work with the region specified but may work for other regions as well.
Device Compatibility: Action Replay, CodeBreaker & GameShark
Unlock All Cars
50000c040000
80043e0a1212
Place 1st (Flame Dragon)
8007e78e0000
Invincible (Flame Dragon)
8007e6100800
1x Speed Power Up (FDragon)
8007E6100002
2x Speed Power Up (FDragon)
8007e6100008
Super Wheels (Flame Dragon)
8007e6100020
Ghost Mode (Flame Dragon)
8007e6108000
Big Grip Tires (Flame Dragon)
8007e6102000
Press L1 Flight Wheels (FD)
d009e3D00004
8007e6120002
Press L2 Turn Flt Whl Off (FD)
d009e3d00001
8007e6120000
Press R1 All Powers (FD)
d009e3d00008
8007e610a820
Press R2 No Powers (FD)
d009e3d00002
8007e6100000
Place 1st (Krush)
8007d6c60000
Invincible (Krush)
8007d6c60800
1x Speed Power Up (Krush)
8007d5480002
2x Speed Power Up (Krush)
8007d5480008
Super Wheels (Krush)
8007d5480020
Ghost Mode (Krush)
8007d5488000
Big Grip Tires (Krush)
8007d5482000
Press L1 Flight Wheels (Krush)
d009e3d00004
8007d54a0002
Press L2 Turn Flt Whl Off (Kr)
d009e3d00001
8007d54a0000
Press R1 All Powers (Krush)
d009e3d00008
8007d548a820
Press R2 No Powers (Krush)
d009e3d00002
8007d5480000
Always Place 1st (Scorpion)
8007eff20000
Invincible (Scorpion)
8007eff20800
1x Speed Power Up (Scorpion)
8007ee740002
2x Speed Power Up (Scorpion)
8007ee740008
Super Wheels (Scorpion)
8007ee740020
Ghost Mode (Scorpion)
8007ee748000
Big Grip Tires (Scorpion)
8007ee742000
Press L1 Flight Wheels (Sc)
d009e3d00004
8007ee760002
Press L2 Turn Flt Whl Off (Sc)
d009e3d00001
8007ee760000
Press R1 All Powers (Scorpion)
d009e3d00008
8007ee74a820
Press R2 No Powers (Scorpion)
d009e3d00002
8007ee740000
Always Place 1st (Vixxen)
8007df2a0000
Invincible (Vixxen)
8007df2a0800
1x Speed Power Up (Vixxen)
8007ddac0002
2x Speed Power Up (Vixxen)
8007ddac0008
Super Wheels (Vixxen)
8007ddac0020
Ghost Mode (Vixxen)
8007ddac8000
Big Grip Tires (Vixxen)
8007ddac2000
Press L1 For Flight Wheels (Vixxen)
d009e3d00004
8007ddac0002
Press L2 to Turn Flight Wheels Off (Vixxen)
d009e3d00001
8007ddac0000
Press R1 For All Powers (Vixxen)
d009e3d00008
8007ddaca820
Press R2 For No Powers (Vixxen)
d009e3d00002
8007ddac0000
Always Place 1st (Mook-808)
800833120000
Invincible (Mook-808)
800831940800
1x Speed Power Up (Mook-808)
800831940002
2x Speed Power Up (Mook-808)
800831940008
Super Wheels (Mook-808)
800831940020
Ghost Mode (Mook-808)
800831948000
Big Grip Tires (Mook-808)
800831942000
Press L1 For Flight Wheels (Mook-808)
d009e3d00004
800831960002
Press L2 to Turn Flight Wheels Off (Mook-808)
d009e3d00001
800831960000
Press R1 For All Powers (Mook-808)
d009e3D00008
80083194a820
Press R2 For No Powers (Mook-808)
d009e3d00002
800831940000
Always Place 1st (Graphite Plus)
8008091e0000
Invincible (Graphite Plus)
800807a00800
1x Speed Power Up (Graphite Plus)
800807a00002
2x Speed Power Up (Graphite Plus)
800807a00008
Super Wheels (Graphite Plus)
800807a00020
Ghost Mode (Graphite Plus)
800807a08000
Big Grip Tires (Graphite Plus)
800807a02000
Press L1 For Flight Wheels (Graphite Plus)
d009e3D00004
800807a20002
Press L2 to Turn Flight Wheels Off (Graphite Plus)
d009E3D0 0001
800807A2 0000
Press R1 For All Powers (Graphite Plus)
d009e3d00008
800807a0a820
Press R2 For No Powers (Graphite Plus)
d009e3d00002
800807a00000
Always Place 1st (Venom)
8007f8560000
Invincible (Venom)
8007f6d80800
1x Speed Power Up (Venom)
8007f6d80002
2x Speed Power Up (Venom)
8007f6d80008
Super Wheels (Venom)
8007f6d80020
Ghost Mode (Venom)
8007f6d88000
Big Grip Tires (Venom)
8007f6d82000
Press L1 For Flight Wheels (Venom)
d009e3d00004
8007F6da0002
Press L2 to Turn Flight Wheels Off (Venom)
d009e3d00001
8007f6da0000
Press R1 For All Powers (Venom)
d009e3d00008
8007f6d8a820
Press R2 For No Powers (Venom)
d009e3d00002
8007f6d80000
Always Place 1st (Dirt Dog)
80082aae0000
Invincible (Dirt Dog)
800829300800
1x Speed Power Up (Dirt Dog)
800829300002
2x Speed Power Up (Dirt Dog)
800829300008
Super Wheels (Dirt Dog)
800829300020
Ghost Mode (Dirt Dog)
800829308000
Big Grip Tires (Dirt Dog)
800829302000
Press L1 For Flight Wheels (Dirt Dog)
d009e3d00004
800829320002
Press L2 to Turn Flight Wheels Off (Dirt Dog)
d009e3d00001
800829320000
Press R1 For All Powers (Dirt Dog)
d009e3d00008
80082930A820
Press R2 For No Powers (Dirt Dog)
d009e3d00002
800829300000
Always Place 1st (Hard Corps)
80084C3e0000
Invincible (Hard Corps)
80084ac00800
1x Speed Power Up (Hard Corps)
80084ac00002
2x Speed Power Up (Hard Corps)
80084ac00008
Super Wheels (Hard Corps)
80084ac00020
Ghost Mode (Hard Corps)
80084ac08000
Big Grip Tires (Hard Corps)
80084ac02000
Press L1 For Flight Wheels (Hard Corps)
d009e3d00004
80084ac20002
Press L2 to Turn Flight Wheels Off (Hard Corps)
d009e3d00001
80084ac20000
Press R1 For All Powers (Hard Corps)
d009e3d00008
80084ac0a820
Press R2 For No Powers (Hard Corps)
d009e3d00002
80084ac00000