Tony Hawk's Underground (PC)
CheatingDome.com
Cheat Codes
From the main menu, go to the Options menu and select cheat codes. To enable these, after you have entered them, start a freeskate/single challenge or story mode. Pause the game, select Options and then Cheats.
Effect
Password
Moon Gravity
getitup
Perfect Grind
letitslide
Perfect Manual
keepitsteady
Perfect Skitch
rearrider