Max Juice Bar
Go to the Cheats screen on the options menu and put in BAKABAKA

Master Cheat
Go to the Cheats screen on the options menu and put in PLZDOME

Get All Keys
Go to the Cheats screen on the options menu and put in SKELETON

Invincibility
Go to the Cheats screen on the options menu and put in KHUFU

Get Perfect Manuals
Go to the Cheats screen on the options menu and put in QUEZDONTSLEEP

Get Perfect Grinds
Go to the Cheats screen on the options menu and put in BIGUPYASELF

Get perfect Handplants
Go to the Cheats screen on the options menu and put in JUSTINBAILEY

Get Full Stats, Levels and all Park editor objects
Go to the Cheats screen on the options menu and press Up, Up, Down, Down, Left, Right, Left, Right, BABA

Get All Characters
Go to the Cheats screen on the options menu and press Down, Right, Right, Down, Left, Down, Left, Down, Right, Right, Right

Get Low Gravity Wallrides
Go to the Cheats screen on the options menu and press Up, Down, Up, Down, Left, Right, Left, Right, ABABS

Get Super Spin
Go to the Cheats screen on the options menu and press Left, Left, Left, Left, Right, Right, Right, Right, Left, Right, Left, Right, Up

Juice Faster
Go to the Cheats screen on the options menu and press Left, Left, Right, Right, Left, Right, Down, Up, Up, Down, AI

Get Ultra Skates
Finish all the levels with a 100% rating. These skates give you one blue stat point for every attribute

Get Power Skates
Finish all hidden and normal challenges on every level. These skates give you one blue stat point for every attribute

Get Movies
Finish all normal challenges in a level to get the movie for that level

Get a Cheat
Get all juice boxes in a level to get a cheat

Bonus characters
Successfully complete the normal and hidden challenges in a level to unlock the following bonus characters:
movie lot= The Bride
Civic center= Goddess
industrial= junkie
boardwalk= captain
cannery= diver
airfield= bombshell
museum= mummy