Here is the full list of all 33 The Metronomicon: Slay the Dance Floor trophies - there are 15 bronze, 12 silver, 5 gold and 1 platinum.
You done did it all!
Survive thirty songs in Endless Mode in one run.
Beat a fifty song playlist without ever pausing.
Survive ten songs in Endless Mode in one run.
Defeat every arena challenge
Defeat every arena challenge on hard.
Purchase every ultimate weapon.
Beat the final challenge's omega boss.
Succeed in every single sidequest.
Survive every song in Story Mode on Hard.
Survive every song in Story Mode.
Kill five enemies in a row using just a single attack on each.
Deal at least 7000 hp damage in one strike as Gwen
Apply six buffs to one hero at the same time
Survive a story song without killing an enemy.
Save the world of Koras from Dancemageddon.
Unlock Sara's laboratory.
Decompile a fearsome Dance-o-bot.
End the dancing of a great Candy Dragon.
Dethrone the Wraith King in the Haunted Kingdom.
Make five arena challenges your chump.
Attain a 300 note streak
Succeed in beating five sidequests.
Survive a story song without healing any party member.
Survive your first 10 songs in Story Mode.
Conquer one challenge in the school arena.
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.