Tony Hawk's Proving Ground Codes -

Unlock Cheats
Enter these codes in the options menu of the main menu:

FOREVERNAILED - 100% Branch Completion (NTT)
THEMISSING - Invisible Man
TINYTATER - Mini Skater
AINTFALLIN - No Bails
MAGICMAN - No Board
STILLAINTFALLIN - Perfect Manual
AINTFALLIN - Perfect Rail
BOOYAH - Super Check
MYOPIC - Unlimited Focus
SUPERSLASHIN - Unlimited Slash Grind

Unlock Items
Enter these codes in the options menu of the main menu:

NEEDSHELP - 50 Extra Skill Points
GIVEMESTUFF - All CAS Items
LETSGOSKATE - All Decks
OVERTHETOP - All Fun Items
WATCHTHIS - All Game Movies
SWEETSTUFF - All Lounge Bling Items
LAIDBACKLOUNGE - All Lounge Themes
IMGONNABUILD - All Rigger Pieces
LOTSOFTRICKS - ALl Special Tricks Avail
TRIPPY - All Video Editor Effects
PUTEMONTOP - All Video Editor Overlays
BEEFEDUP - Full Stats

Unlock Skaters
Enter these codes in the options menu of the main menu:

CRAZYBONEMAN - Boneman
MOREMILK - Bosco
NOTACAMERA - Cam
THECOOP - Cooper
SKETCHY - Eddie X
PILEDRIVER - El Patinador
FLYAWAY - Eric
RABBIES - Mad Dog
INTERGALACTIC - MCA
NOTADUDE - Mel
LOOKSSMELLY - Rube
MOVERS - Shayne
DAPPER - Spence
SHAKER - TV Producer

Unlock Characters
In order to unlock any of the characters you need to get at least AM in all of the missions in each of the categories in Tony Hawk's Proving Ground. Once you have achieved at least AM in each of the mission, you will unlock that categories secret character as well as more video's to watch in the main menu.

El Patinador - Get at least AM in every Rigger challenge
Judy Nails from Guitar Hero - Get at least AM in every Career challenge
MCA from the Beastie Boys - Get at least AM in every Hardcore challenge