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