I think just Final Fantasy IX and maybe IV. I've played IX more than ten times and remember hidden item placements by heart and IV is pretty simple, the only iffy things are the hidden summons like Goblin and Bomb which are just insanely rare item drops anyway, but yeah definitely IX, but I still have to look up some of the chocograph locations though every time I play. Some of them just are in vague out of the way places like the Ocean graph.