Here is the full list of all 32 The Metronomicon: Slay The Dance Floor achievements.
Survive every song in Story Mode on Hard.
Survive every song in Story Mode.
Save the world of Koras from Dancemageddon.
Decompile a fearsome Dance-o-bot.
Unlock Sara's laboratory.
Survive a story song without killing an enemy.
End the dancing of a great Candy Dragon.
Dethrone the Wraith King in the Haunted Kingdom.
Survive a story song without healing any party member.
Succeed in beating five sidequests.
Make five arena challenges your chump
Conquer one challenge in the school arena.
Survive your first 10 songs in Story Mode.
Destroy the Speyeder of the Wild Forest.
Unlock your first bonus song.
Attain a 300 note streak.
Perform a perfect Solo-Lane Team Attack.
Perform your first upgrade to the school.
Succeed in your first story sidequest.
Attain a 100 note streak.
Perform a perfect meteor attack counter.
Beat the final challenge's omega boss.
Defeat every arena challenge.
Defeat every arena challenge on hard.
Purchase every ultimate weapon.
Succeed in every single sidequest.
Apply six buffs to one hero at the same time.
Deal at least 5000 hp damage in one strike as Gwen.
Kill five enemies in a row with a single attack.
Beat a fifty song playlist without ever pausing.