How can you get the ultima weapon in FF3

send 7 or more wifi mails, send 4 mails to princess sara, and she will say her pendant broke. talk to takka, send 5 mails to takka, send 4 mails to cid and kill aeon. aeon will drop a metal, cid says its a legendary metal. go to saronia and go into the nothwestern town. go on the east side of the city and find a forest area and talk to the smith, and she will fix it. give sara her pendant back and go southwest of saronia, take the invincible and find small mountains, go over them, and go in a town called falgabard. find the weapon shop, she's near it and she will build a ultima weapon for you. :D.