SSX

Unlock the Running Man Cheat
----------------------------
At the Options Menu, hold L1 + L2 + R1 + R2
and press Square, Triangle, Circle, X, Square,
Triangle, Circle, X.

View All Hints
--------------
At the Options Menu, hold L1 + L2 + R1 + R2
and press Circle, X, Circle, X, Circle, X, 
Circle, X.

Metal Gear Solid 2 - Sons of Liberty

Big head mode
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At the start menu type up,up,down,circle,
triangle.left,right. You should hear a 
tone and all characters even guards will 
have big heads

Tony Hawk's Pro Skater 3

Cheat mode
----------
Enter options menu, then choose the "cheats" 
selection. Enter backdoor to unlock all cheat
options.

All characters
--------------
Enter options menu, then choose the "cheats" 
selection. Enter YOHOMIES to unlock all 
characters.

All FMV sequences
-----------------
Enter options menu, then choose the "cheats" 
selection. Enter Peepshow to unlock all 
movies under the options menu.