Activision Tony Hawks Project 8 for PlayStation 2 "hawk" Questions

i need to know where to type in my cheats in tonyhawk project8 simply type in key board

...complete the game to unlock interviews with veterans Gordon Boulton, Sgt. John D. "Bud" Hawk, and Sgt. Stan Markut. Move friendliesTo move your friendlies, use ADS and aim at them, then ...

my game has so many scratches on a game and all the repair tips always harm it evan more and i dont want to take it to get buffed? get your own cleaning kit or get a new copy of the game thats all you