Here is the full list of all 38 Ginger: Beyond the Crystal achievements.
Obtain 100% happiness in Bleepside Lake
Build one of each house
Save the Bleepside Lake Gingerians
Rescue all the Gingerians from all the towns
Build all the houses in Crater Peaks
Complete all the missions in Crater Peaks
Find the secret area
Find 10 pieces of cloth
Obtain 100% happiness in Crater Peaks
Open all the coffins in the hand mission
Find 15 sacks
Save the Crater Peaks Gingerians
Defeat one of each enemy in Crater Peaks
Kill 50 frogs
Build all the houses in Lowleen Town
Complete all the missions in Lowleen Town
Find 25 stones
Save the Lowleen Town Gingerians
Find 50 pieces of wood
Obtain 100% happiness in Lowleen Town
Die 10 times
Defeat one of each enemy in Lowleen Town
Complete your first quest
Build all the houses in Bleepside Lake
Complete all the missions in Bleepside Lake
Complete the main story
Defeat one of each enemy
Obtain a score of at least 1500 points on the fair target practice minigame
Complete the honey collection mission with 80 seconds to spare
Obtain 100% happiness in all the towns
Complete all secondary missions in all the towns
Interact with all the search points in the mansion
Complete all the bonus areas
Buy all the shop’s accessories
Defeat one of each enemy in Bleepside Lake