Here is the full list of all 39 Little Noah: Scion of Paradise achievements.
Earn 59 badges in the adventurer's log.
Obtain 100 green crystals.
Max out your bond with 40 different Lilliputs.
Obtain 100 blue crystals.
Red Crystal
Obtain 10 different Avatars.
Log 142 different accessories.
Defeat 50 Rascals.
Repair the airship 75 times.
Complete 200 challenges.
Defeat Greigh Little without taking any damage.
Defeat Greigh without taking any damage.
Defeat Fang (Wind).
Clear 25 monster lairs.
Defeat 2,000 enemies.
Open 500 treasure boxes.
Clear the game on HARD difficulty.
Defeat Greigh Little.
Achieve a 150 hit combo.
Defeat Greigh.
Defeat Titan (Glaive).
Buy 100 shop items.
Defeat Fang (Ice).
Activate Avatar Burst 30 times.
Log 40 different Lilliputs.
Use a potion 30 times.
Use 20 Ruin Keys.
Reach the depths of the ruins.
Defeat a Fang without taking any damage.
Max out a Lilliput's level for the first time.
Defeat Titan (Hammer).
Defeat Jack.
Reach the Winding Caverns.
Defeat a Titan without taking any damage.
Switch Noah's Avatar for the first time.
Defeat Queen.
Defeat King.
Place a statue on the airship for the first time.
Begin exploring the ruins.