Use a synergy skill.

Complete Chapter 2.

Defeat a summon in battle and obtain its materia.

Kill 100 enemies using fire damage during the same mission.

Complete your search of a cache location.

Gather world intel at five separate locations.

Repair three chocobo stops.

Use a limit break.

Exploit an enemy's weakness.

Raise your Queen's Blood rank.

Win a battle.

Kill 5,000 enemies.