Is there a cheat code to unlock all levels in Tony Hawk project 8 for ps3?

Yes, in Tony Hawk's Project 8 for PS3, you can unlock all levels by entering the cheat code "THPS2" in the game's cheat menu. This will give you access to all the levels without having to complete them individually. Make sure to enter the code correctly to activate the cheat. Enjoy skating through all the levels!