Cheat mode
Enter PLZDOME as a passwords at the "Cheats" screen under the options menu.
 

Level select, all park editor objects, full stats:
Enter Up, Up, Down, Down, Left, Right, Left, Right, B, A, B, A as a code at the 
cheat screen. 

All bonus characters:
Enter Down, Right, Right, Down, Left, Down, Left, Down, Right, Right, Right as a 
code at the cheat screen. 

All keys:
Enter S, K, E, L, E, T, O, N as a code at the cheat screen. 

Low gravity wallride:
Enter Up, Down, Up, Down, Left, Right, Left, Right, A, B, A, B, S as a code at the 
cheat screen. 

Super Spin:
Enter Left, Left, Left, Left, Right, Right, Right, Right, Left, Right, Left, Right, Up as a 
code at the cheat screen. 

Perfect manuals:
Enter Q, U, E, Z, D, O, N, T, S, L, E, E, P as a code at the cheat screen. 

Perfect handplants:
Enter J, U, S, T, I, N, [Space], B, A, I, L, E, Y as a code at the cheat screen. 

Perfect grinds:
Enter B, I, G, U, P, Y, A, S, E, L, F as a code at the cheat screen. 

Juice regeneration:
Enter Left, Left, Right, Right, Left, Right, Down, Up, Up, Down, A, I as a code at the 
cheat screen. 

Juice bar is always full:
Enter B, A, K, A, B, A, K, A as a code at the cheat screen. Your juice bar will 
remain full, even if you crash. 

Juice remains after crashes:
Enter K, H, U, F, U as a code at the cheat screen. 
 
FMV sequences
Successfully complete the normal challenges in a level to unlock its FMV sequence.
 
Cheats
Collect all juice boxes in a level to reveal a cheat code.
 
Power Skates
Successfully complete all challenges (normal and hidden) hidden 
on every the level to unlock the Power Skates. The Power Skates 
give you one blue stat point for every attribute.
 
Ultra Skates
Successfully complete all the levels with 100% to unlock the Ultra 
Skates. The Ultra Skates give you the other blue stat point for 
every attribute.
 
Bonus characters
Successfully complete the normal and hidden challenges in a level 
to unlock a bonus character. The characters are as follows:

Movie Lot: The Bride
Civic Center: Goddess
Industrial: Junkie 
Boardwalk: Captain
Cannery: Diver
Airfield: Bombshell
Museum: Mummy 


Snowmen decorations:
Set the Xbox system date to any day in December. 
The streets of the Civic Center level will be littered with snowmen. 

Boardwalk: Hidden grind:
When on the roller coaster track, press Up(3), Grind to do a "double grind". You 
need to be near the tracks, since you are grinding both tracks at the same time. 

Boardwalk: Easy points:
After you have unlocked the secret area, you can go to a tall spiral lighthouse. Go 
inside this lighthouse. The bottom is hollowed out. Get some speed up from the 
halfpipes outside the entrance then go into the lighthouse and hit one of the walls 
at an angle. Start wallriding up the middle, continually jumping and wall riding 
again around the inside walls. When you get about half-way up the inside, slow 
down your jumping so that instead of climbing up you are just wall riding around in 
an endless loop. You can get your multiplier up to 199X and do a trick worth 30 
million points. This is also good for getting up your Wallri, Fakie, and Speed stats. 

Go to the roller coaster and jump on the track. Grind either the two middle rails or 
the rail on the far right. Jump up and down continuously until you decide to jump 
off. This allows you to complete some objectives on that level and also get a 
massive amount of points in case you run out of juice. 

Museum: Ark Of The Covenant:
The Ark of the Covenant can be found in the back area. Go up top the set of three 
quarter pipes hanging from the ceiling. Handplant the Ark to get a better view. 

Museum: Hidden grind:
When on the display cases that are somewhat pyramidal, press Up(3), Grind to do 
a "double grind". 

Get extra points:
To do a near-infinite handstand combo, go up to a quarter or halfpipe in any level. 
Do a normal handstand, rocket, abstract, etc. Hold Down to make the meter go 
down, causing your handplant to end, but the trick is to keep pressing Grind 
repeatedly. As you get better, you can do up to a 50 trick combo. Note: This does 
not always work. 

Go up any quarterpipe and do any desired tricks. Do the Cess Slide after your 
wheels hit the ground and try not to combo it with your tricks. 

Find a half-pipe or a bowl and do some tricks. Before you land, do a Cess Slide 
into a Manual. The trick keeps going, and if you have enough skills, you can do it 
as long as desired. 

Hand Grind:
Jump, press Down(3), and grind.