i never beat this game, i got to where i give red13's grandpa the huge materia's and got the key of the ancients, there is some barrier preventing me from going in this crater with the airship and i got bored, that was 3 years ago and i loaded it a few weeks ago and went there on foot and some guy comes out of a house thats there and says i cant go into the barrier cuz its too dangerous, too lazy to look online so w/e