Obtain the Bahamut ZERO Materia

Learn Highwind—Cid's last Limit Break

Learn Catastrophe—Barret's last Limit Break

Obtain the Leviathan Materia

Learn Cosmo Memory—Red XIII's last Limit Break

Learn Omnislash—Cloud's last Limit Break

Learn Great Gospel—Aeris's last Limit Break

Learn Slots—Cait Sith's last Limit Break

Score 10,050 points or more in G-Bike at the Gold Saucer

Use a summon Materia in battle

Use a Limit Break

Defeat 10,000 enemies.