Found the blue key

Engaged a strange device

Rang the Western Bell

Chopped down 1000 blades of grass

Rang the Eastern Bell

Found a sword

Completed a floor of the rift labyrinth.

Unlocked the summoner.

Acquired a rat tail.

Unlocked the void knight.

Completed a mission with a dragon king trial enabled.

Acquired an anima crystal.

Completed a level 200 mission or higher on CHAOS difficulty.