Press Start, select "Options" > "Extras" > "Enter Cheat Code". Enter one of the following codes to activate the corresponding cheat:
Mini-Skater mode -"miniskaters"
Zombie mode - "zombie". In this mode, the screen will turn yellow and pedestrians will chase you.
Hoverboard mode - "mcfly". In this mode, trucks and wheels disappear from your board.
Reset all objects to their original positions - "streetsweeper"
Play as Isaac from Dead Space - "deadspacetoo"
Meat Man & Dem Bones:
To unlock Meat Man & Dem Bones, successfully complete all Hall Of Meat challenges.
Park Apprentice - Complete the skate.Park tutorials.
Takin 'em to the limit - Get the terrain meter in the red for your own skate.Park.
Constructive Criticism - Rate 5 skate.Parks, 5 Films, and 5 Photos.
Artsy Fartsy - Upload 5 Films and 5 Photos, and 3 skate.Parks.
Sellout! - Create a Logo and put it on your Skater.
Objectifier - 3 Moveable objects used in a single sequence.
Mantastic Voyage - 3 manuals in a single sequence.
Don't be so Mayo - Land a Miracle Whip (Superdude body flip).
100% Pure Adrenaline - Fly Spread Eagle for 10 seconds.
Employee #3 - Earn your second career teammate.
Party at the Penthouse - Win both Maloof Money Cup contests.
T-Mobilized - Win the T-Mobile sponsored contest.
Employee #2 - Earn your first career teammate.
Beast Unleashed - Win the Monster contest.
GVR Champ - Win the Goofy vs. Regular contest.
Making a Buddy Call - Call a Skater to come skate with you.
Talking bout Team practice - Play in a 6-player Team Freeskate session.
You're Winner! - Win a Ranked Online Solo Challenge.
Co-Operator - Complete an Online Career challenge.
Throw Down - Win a Ranked Online Team Challenge.
Team Up - Be part of a team with two or more skaters.
Lot Pwners - Win a Ranked Team Own The Lot.
Speed Demon - Win the final deathrace.
In Stereo - Complete Coach Frank's skate.School Tutorials.
Masochist - Beat the 'Thorax Crunch' Hall of Meat Challenge.
All your base are belong to you - Unlock the Team HQ.
Employee #1 - Start your team.
Big-Footy - Beat the film ender.
The Consumate Pro - Complete all pro challenges.
King of Kings - Win the sreet and tranny ender contests.
Sexiest Skater Alive - Get the covers of Skateboard Mag and Thrasher.
Overexposed - Complete all Promotional Films and Photos.
Employee #4 - Earn your third career teammate.
It takes a really big village... - Reach community board sales target.
High Five! - Win any 5 Ranked Challenges.
Is that all you got? - Own all challenges.
Spot Monopolist - Own all of the spots.
A Dynasty Is Born - Fully staffed your team.
Mass Murderer - Kill 80 challenges.
Lot Monopolist - Own all of the lots.
Dedicated - Everything beaten, everything unlocked, everything earned.
Deck Peddler - 1 Million boards sold.
Platinum Trophy - Earn all Bronze, Silver, and Gold trophies.
Tagged @ PS3 cheat