This game is really cool. i love its park editor and all of its levels. anyway, here are some cool cheats for Tony Hawk's Pro Skaer 3.
Enter these codes to unlock neat stuff.
Unlock Movies-
ROLLIT
Unlock Neversoft staff and Tony's sons-
WEEATDIRT
Oil Rig
Complete 100% of the game with any character to unlock The Oilrig level.
X-Ray
Complete 100% of the game with two characters to unlock X-Ray.