Enjoy,
Dark~Cloud
I’ll start off:
If you get a certain ammount of BP at the Battle Square, instead of getting a Masamune Replica, you’ll get a real one! And after you obtain this Secret Weapon, the Sephiroth from Cloud’s Past will Apparate and say he is impressed with your skills and will join your party.
I think that is the biggest rumour yeah? that one, and having sephiorth join the team…