Pause the game, hold the left trigger + right trigger and press down, a, x, black, a. You can now enter the following:

 Disable Shellshock – Press X, Y, A, B, Left, Trigger, X.

Infinite Health – Press white, black, Y, white, Left trigger, left trigger.

Hide Hud – Press black, left trigger, black, right trigger, up, Y.

Kill Nemesis – Press right, left, right trigger, left trigger, X, Y.

Unlimited Ammo – Press, L, Y, B, up, A, A.

Faster Vehicles – At the main menu, hold L + R and press X, X, Y, Y.

1-Hit Ko – At the main menu, hold L + R and press A, X, X, A.

Disable Hud – At the main menu, hold L + R and press A, B, Y, X.

Chicken Heads – At the main menu, hold L + R and press A, X, X, B.

Japanese Crash – At the main menu, hold L + R and press B, X, B, X.

Drive A Block Vehicle – At the main menu, hold L + R and press X, X, Y, B.

Select Enter Code from the Extras menu and enter the following:

• All Cars & 1,000,000 Credits - GIEVEPIX
• 1,000,000 Credits - GIVECASH
• Pimpster Car - RUTTO
• Flatmobile Car - WOTKINS
• Mob Car - BIGTRUCK
• School Bus - GIEVCARPLZ
• Rocket Car - KALJAKOPPA
• Truck - ELPUEBLO

Pause the game, select Cheats from the Options menu and enter the following codes.

• Any Level - press Y, White, Black, L, A, R, R, Y.
• Invincible - press X (x3), R, A, L, L, Y.
• God Mode - press, Y, A, B, X, B, A, A, L.
• Fill Health Bar - press X, R, A, Y, Black, B, A, R.
• Fill Ammo - press, A, L, L, Black, B, White, L, L. 
• Topsy Turvy - press Y, A, B, B, A, B, White, White.
• Big Heads - press L, Black, B, White, White, B, Black, L.
• Big Hands - press R, White, X, L, White, R, R, Y.
• Big Boots - press R, White, Y, A, L, B, White, X.
• View Any Move – press A, Y, A, Y, Black, R, A, Y.

Select Cheat Codes from the Options Menu and enter code.

• Unlock Everything - IF900HP
• All Characters - YAYCARS
• All Character Skins - R4MONE
• All Mini-Games and Courses - MATTL66
• Mater’s Countdown Clean-Up Mini Game & Mater’s Speedy  Circuit - TRGTEXC
• Fast Start - IMSPEED
• Infinite Boost - VROOOOM
• Art - CONC3PT
• Videos - WATCHIT

• Restore Health – at the main menu press Left, Right, Up, Down, A (x4)
• Innvincibility – at the main menu press A, Y, X, B, Up, Up, Down, Down
• Armor – at the main menu press A, X, Y, B, Up, Up, Up, Down
• Extra Money – at the main menu press Up, X, Up, X, Down, B, Down, B
• All Blessings – at the main menu press Left, Up, A, B, Right, Down, X, Y.
• Maximum Attributes – at the main menu press Left, B, Up, Y, Down, X, Right, A
• Max Skills – at the main menu press A, Left, Right, B, Down, Up, X, X
• Stronger Attacks – at the main menu press A, Up, B, Down, X, X, Y, Y

Enter each password accordingly.

• Level 1 on Easy – 4265
• Level 2 on Easy – 7332
• Level 3 on Easy – 6578
• Level 4 on Easy – 7213
• Level 5 on Easy – 8234
• Level 6 on Easy – 9322
• Level 7 on Easy – 1279
• Level 8 on Easy – 5682
• Level 9 on Easy -  3211
• Level 1 on Medium -  6932
• Level 2 on Medium – 3682
• Level 3 on Medium – 5892
• Level 4 on Medium – 4468
• Level 5 on Medium – 1127
• Level 6 on Medium – 9902
• Level 7 on Medium – 2332
• Level 8 on Medium – 8658
• Level 9 on Medium – 7745
• Level 1 on Hard -  1979
• Level 2 on Hard – 2034
• Level 3 on Hard – 7809
• Level 4 on Hard - 6776
• Level 5 on Hard – 9054
• Level 6 on Hard – 4311
• Level 7 on Hard – 8282
• Level 8 on Hard – 2468
• Level 9 on Hard – 1410 

• All Bonuses – At the edit Driver screen, enter Open Sesame as your name.
• Dale Earnhardt – At the edit Driver screen, enter The Intimidator as your name.
• $10,000 – At the edit Driver screen, enter Walmart NASCAR as your name.
• Lake Shore Drive Track – At the edit Driver screen, enter Walmart Exclusive as your name.
• Dodge Events – At the edit Driver screen, enter Dodge Stadium as your name.
• Mr Clean Drivers – At the edit Driver screen, enter Mr. Clean Racing as your name.
• Mr. Clean Pit Crew – At the edit Driver screen, enter Clean Crew as your name.
• 2,000,000 Prestige Points / Level 10 in Fight to the Top Mode – At the edit Driver screen, enter You TheMan as your name.

• The Matrix Dream Sequence – Collect 1 Percursor Orb
• Braveheart Dream Sequence – Collect 100 Precursor Orbs.
• The Lord of the Rings Dream Sequence – Collect 200 Percursor Orbs.
• Indiana Jones Dream Sequence – Collect 300 Percursor Orbs.
• The Matrix Dream Sequence 2 – Collect 400 Percursor Orbs.
• The Lord of the Rings Dream Sequence 2 – Collect 500 Percursor Orbs.
• E3 2005 Trailer – Collect 600 Percursor Orbs, then pause the game and select Extras from the Secrets menu.
• Concept Art – Collect 700 Percursor Orbs, then pause the game and select Extras from the Secrets menu.
• Intro Animatic – Collect 800 Percursor Orbs, then pause the game and select Extras from the Secrets menu.
• Game Under Construction – Collect 900 Percursor Orbs, then pause the game and select Extras from the Secrets menu.
• Behind the Scenes – Collect 1000 Percursor Orbs, then pause the game and select Extras from the Secrets menu.
• Pants – Earn Gold on The Lord of the Rings Dream Sequence 2, then pause the game and select Cheats from the Secrets menu.
• Hat – Earn Gold on the Indiana Jones Dream Sequence, then pause the game and select Cheats from the Secrets menu.
• Website Clue A – Earn Gold on The Matrix Dream Sequence, then pause the game and select Cheats from the Secrets menu.
• Website Clue B – Earn Gold on the Braveheart Dream Sequence, then pause the game and select Cheats from the Secrets menu.
• Website Clue C -  Earn Gold on The Lord of the Rings Dream Sequence, then pause the game and select Cheats from the Secrets menu.
• Website Clue D – Earn Gold on The Matrix Dream Sequence 2, then pause the game and select Cheats from the Secrets menu. 

Unlock everything, except the Fury bike.  Select Player Profile from the Options menu.  Then select Enter Cheat and enter !SLACKER!.  This will not unlock the Fury.   

• All ATV’s in Training – select Enter Cheat and enter NOSKILLS
• All Rider Gear – select Enter Cheat and enter FITS
• $1500 – select Enter Cheat and enter +footstamps+
• Music Videos – select Enter Cheat and enter ROCKNROLL