Tony Hawk's Pro Skater 3 Cheats

Wolverine's Special Moves are as follows: Claw Punch, The Claw Drag, and The Berzerker.
You can assign them to any button combo you'd like with the Edit Tricks function on the pause screen.

You can make Ollie the magic bum really magic all you have to do is go to the edit special trick menu for him and select any 2 tricks you want to get rid of, then go through the trick options and select force grab and the summoner he can now do magic tricks (this only works is you have Darth Maul and the Demoness)

Darth Maul's Special Tricks are unique to the Sith Lord. They are:
Force Grab, Sith Saber Spin, and Dark Jedi Grind.

You can assign them to any button combo you'd like with the Edit Tricks function on the pause screen.

Note: Since people prefer different locations for their tricks, the actual combination will vary. For the Flatlands, you first need to have a flatland trick as a special, and then execute it.
Double Kickflip: Do a kickflip and quickly press Square again (regular 500 points, switch 600 points).
Triple Kickflip: Do a kickflip and quickly press Square(2) (regular 1000 points, switch 1200 points).
Double Heel: Do a heelflip and press Square again (regular 500 points, switch 600 points).
Triple Heel: Do a heelflip and press Square(2) (regular 1000 points, switch 1200 points).
360 Shove-It: Do a Pop Shove-It (not Frontside) and press Square again (regular 500 points, switch 600 points).
540 Shove-It: Do a Pop Shove-It (not Frontside) and press Square(2) (regular 1000 points, switch 1200 points).
360 Frontside Shove-It: Do a Frontside and press Square again (regular 500 points, switch 600 points).
540 Fronside Shove-It: Do a Frontside and press Square(2) (regular 1000 points, switch 1200 points).
50-50 to Five-0: Approach a rail, perform a 50-50. then press Down + Triangle (points will vary due to duration of trick).
Five-0 to Bluntslide: While performing a Five-0 press Down(2), Triangle. Remember to stay balanced (points will vary due to duration of trick).
50-50 to Nosegrind: While doing a 50-50, press Up + Triangle (points will vary due to duration of trick).
Nosegrind to Noseblunt: While Nosegrinding, press Up(2), Triangle (points will vary due to duration of trick).
Tailslide to Bluntslide: While in a Tailslide, press Down(2), Triangle (points will vary due to duration of trick).
Noseslide to Nosebluntslide: While in a Noseslide, press Up(2), Triangle (points will vary due to duration of trick).
Smith/Feeble to Bluntslide: While in Smith or Feeble, press Down(2), Triangle (points will vary due to duration of trick).
Crooked/Overcrook to Nosebluntslide: While in a Crooked or Overcrook, press Up(2), Triangle (points will vary due to duration of trick).
Anti-Casper: While in a Flatland trick, press Left, Right, Triangle (points will vary due to duration of trick).
Casper: While in a Flatland trick, press Right, Left, Triangle (points will vary due to duration of trick).
Casper Flip: While in a Casper, press Right, Square (points will vary due to duration of trick).
Truck Spin: While in a Flatland trick, press Right(2), Triangle (points will vary due to duration of trick).
Truckstand flip: While in the Truckstand position (see... 

YoHomies= Unlocks all characters!
BACKDOOR= Cheats. (Access while playing)

Wolverine's Special Moves are as follows: Claw Punch, The Claw Drag, and The Berzerker.

Go into the create-a-skater section and type in the names:
Spencer Hawk
Riley Hawk

Unlocks all cheats,
PS: Except for all people and levels