ok so i've been playing ffx for a while now in omega to level up. i've already gone to the highbride where (SPOILER)mika sends himself and then went back to omega. now my problem is that i cant go and fight sin!!! i know that after the hibridge scene "sin" should be on the airships list of locations but its not there. i dont know what else to do so i'm turning to anyone here who can help me. thanx