I have encountered the same freeze bug that many have on the xbox 360 versions. Right after you defeat the serphant and jump him when sliding, there is a lever to pull on a ledge. I pull the lever and go to go down the hill and it freezes there every time. Unfortunately on PS2 there is no way to just restart the level or begin from the level before and continue through. My saves were recent and I have restarted the game.

Has anyone figured out how this bug works?
Is there something I need to do or need to avoid to continue on in the game?