Players can unlock info for code in playable demo on PS2 disk

 The playable MTX: Mototrax demo on Tony Hawk's Underground (T.H.U.G.) for the PS2 contains some information that may lead players to a cheat code for T.H.U.G. First, start up T.H.U.G. (PS2) and locate the MTX: Mototrax demo. I've attached a couple of screens showing where to find it.  Next, start up the single player race demo. If you manage to place first in the race, you will receive a secret code. 

Go to http://www.mtxmototrax.com and click "Enter Your Code Here" under the main image. Type in the secret code you were given from the demo, and you will be rewarded with a new cheat code for T.H.U.G.