Here is the full list of all 38 Meltys Quest achievements.
Defeat D.M.U. on True Princess mode without retreating during the fight.
View the hidden ending.
Let Dark Pietra defeat herself.
Defeat Dark Lilf while wearing an Apron.
Mano a Mano Defeat Dark Limey using only Strike skills, Guard or Items.
Defeat Dark Globbers while only using Love Shot or Love Wave to do damage.
Got Milk?
Oh hey, didn't see you there.
See all six endings.
Have exactly 7 in all three cream related experiences.
Get the Pure Ending while in Princess Mode.
Defeat the secret boss on True Princess Mode.
Defeat the final boss on True Princess Mode.
Defeat the final boss while only using Love Shot or Love Wave to do damage to the final boss.
Obtain the sword of a king.
Face the first boss of True Princess Mode.
Wear the JK Clothes.
Give life twenty times.
Slay a relic of the past.
Save the world.
Time to kick some butt!
Pointless, useless, futile, meaningless.
Complete the rebuild of Castle Rothstein.
Pick the fourth option while talking to Zanelli.
Read Garnet's letter.
Obtain the secret outfit.
Learn a Skill from using an Item.
Wear Melty's new favorite battle outfit.
Defeat a chicken. Wow.
Wear only what you were born with.
Help someone prepare for their graduation.
Cannonball!!
Achieve bliss a total of 100 times or more.
Meet the wandering swordsman while having done the oldest profession in the game five times or more.
Wear the Nurse Uniform.
Mine an iron ore.
You lost on purpose didn't you.
Give the Red Potion to Rudolf.