Here is the full list of all 19 Kit's Quest achievements.
Achieve 100% completion of Fennecton.
Achieve 100% completion of Greenwood & Skyreach Mountain.
Achieve 100% completion of Cascade Ravine.
Achieve 100% completion of Flooded Ruins.
Achieve 100% completion of Luminous Caverns.
Achieve 100% completion of Great Oak Aerie.
Achieve 100% completion of Kit's Quest!
Trade away all of the Berries in Kit's Quest to birds.
Return all of Queen Nelli's Golden Mushrooms.
Learn all of Kit's moves and abilities.
Find a hidden sign to read somewhere in Greenwood.
Defeat Dregnor!