Learn All Creation—Yuffie's last Limit Break

Defeat the Diamond Weapon

Obtain the Leviathan Materia

Learn Final Heaven—Tifa's last Limit Break

Learn Slots—Cait Sith's last Limit Break

Obtain the Bahamut Materia

Go on a date with Barret in the Gold Saucer

Have Vincent join your party

Use a summon Materia in battle

Let the Word be known.

Discover and complete all unwritten tales on Iki Island.

Have your whole party fall in battle