When you have to scare away the crazie carnie from the ferris wheel on the mission with Tony Alva go to the Hollywood cloths shop. The alien suit should be available for purchase.
American Wasteland Final movie
Successfully complete Story mode on the Normal difficulty setting to unlock the American Wasteland Final movie.
BMX Ultimate Combo
First, go to Beverly Hills. Pick up a BMX and head over to where the red ropes are. While on the BMX, face traffic. When you see a Jeep coming towards you, jump on it. It will stop immediately. While on the Jeep, jump up. You will be floating in mid-air. So, while in this position, pull off any trick for as long as you want. Any combination of tricks will work.
WARNING: If you use the LEFT Analog stick while in this glitch, you will fall and lose your combo.
Cheaper AMJAM enterance fee
If you want to pay less to get a spot in Tony Hawk's first anual AMJAM play your game in easy. It will be cheapest if you play the game on easy, instead of medium or sick. You can also use this method for buying the dinosour head.
Easy Missions
Once you get a piece for the skate ranch go back to the skate ranch find Mindy. She will tell you to get a certain amount of points on each piece you got.
Final Mission Hint
When you get out of the casino and enter East L.A. you are told to go to the skate ranch. You only have one minute, but there are checkpoints, so if you run out of time, you start there. Every two checkpoints your time left is raised to 1 minute.
Flying Board
When you are in Santa Monica,do the mission on top of the stairs.While doing that,throw a board there. When you finish the mission, look up.You might see a flying board.
Get all career levels
To get all of the career levels enter "jarmie" at the cheats menu.
Get Moon Gravity
To get moon gravity enter "2them00n" at the cheats menu.
Get Perfect Grinds
Enter grindXpert in the cheats menu to get perfect grinds.
Get perfect grinds
To get perfect grinds every time enter grindXpert in the cheat menu.
Get perfect skitches
To get perfect skitches enter h!tchar!de in the cheats menu.
Meet Tony Alva
To meet Tony Alva you have to do missions for all three members of his posse. You can find them in the level with the carnival.
Neversoft Skates movie
Get a 100% completion in Classic mode to unlock the Neversoft Skates movie.
Nevrsoft eye sighting # 1
When you see the ferris wheel at the carnival look at both sides of it. You should see a big verison of Neversoft's logo.
Perfect Manuals
To not have to worry about the balance meter when you are manualing enter 2wheels! in the cheats menu.
Perfect Manuals
To get perfect manuals enter 2wheels! in Cheats menu.
Perfect skitches
Enter h!tchar!de in the Cheats menu to get perfect skitches.
Play as Baller
Get a 100% completion in Story mode to unlock Baller.
Play as Barber
Successfully complete all Skate Ranch missions and get all 43 Skate Ranch Pieces to unlock Barber.
Play as Billy Joe
Successfully complete Classic mode on the Normal difficulty setting to unlock Billy Joe from Green Day.
Play as Boone
Successfully complete Classic mode on the Normal difficulty setting to unlock Boone.
Play as Boone in briefs
Get a 100% gap completion to unlock Boone in his briefs.
Play as Camera Guy
Get a 100% completion in Story mode to unlock Camera Guy.
Play as Carnival Worker
Successfully complete all Skate Ranch missions and get all 43 Skate Ranch Pieces to unlock Carnival Worker.
Play as Cholo
Get a 100% completion in Story mode to unlock Cholo.
Play as Dogtown Guy
Successfully complete all Skate Ranch missions and get all 43 Skate Ranch Pieces to unlock Dogtown Guy.
Play as Dogtown Guy 2
Get a 100% completion in Classic mode to unlock Dogtown Guy 2.
Play as French Man
Successfully complete all Skate Ranch missions and get all 43 Skate Ranch Pieces to unlock French Man.
Play as Graffiti Dude
Get a 100% completion in Classic mode to unlock Graffiti Dude.
Play as Hard Hat Worker
Get a 100% completion in Classic mode to unlock Hard Hat Worker.
Play as Iggy
Successfully complete Story mode on the Normal difficulty setting to unlock Iggy.
Play as Jason Ellis
Successfully complete Story mode on the Normal difficulty setting to unlock Jason Ellis.
Play as Jimbo
Successfully complete Story mode on the Hard or Sick difficulty setting to unlock Jimbo.
Play as Lil' John
Successfully complete Story mode on the Normal difficulty setting to unlock Lil' John.
Play as Master Zen
Get a 100% completion in Classic mode to unlock Master Zen.
Play as Mat Hoffman
To unlock Mat Hoffman in free skate enter the_condor in the cheats menu.
Play as Mega
Successfully complete Story mode on the Hard or Sick difficulty setting to unlock Mega.
Play as Mindy
Successfully complete Story mode on the Easy difficulty setting to unlock Mindy.
Play as Murphy
Successfully complete Story mode on the Hard or Sick difficulty setting to unlock Murphy.
Play as Oil Rig Worker
Get a 100% gap completion to unlock Oil Rig Worker.
Play as Performer
Get a 100% gap completion to unlock Performer.
Play as Police Man
Get a 100% gap completion to unlock Police Man.
Play as Robo-Tony
Successfully complete Story mode on the Easy difficulty setting to unlock Robo-Tony.
Play as Useless Dave
Successfully complete Clasisc mode on the Hard or Sick difficulty setting to unlock Useless Dave.
Play as Welder
Get a 100% completion in Story mode to unlock Welder.
Pro Bails 1 movie
Successfully complete Classic mode on the Normal difficulty setting to unlock the Pro Bails 1 movie.
Pro Bails 2 movie
Get a 100% completion in Story mode to unlock the Pro Bails 2 movie.
Unlcock Mat Hoffman
To unlock Mat Hoffman enter the-condor in the Cheats menu.
Unlock Jason Ellis
Input sirius-DJ on the cheat menu to shred as Jason Ellis.