I'm having a problem with the Infinite Stamina (mines) code. it works for the first 2-3 levels in the spring mine, but any level lower, my stamina goes down as normal. I don't know if it's the same in the winter mine, as i havent been there yet. Anyone know of another Gameshark code that will work? By the way, the official codes on the gameshark website DO NOT work. at least not for me anyway. any help would be greatly appreciated