Here is the full list of all 17 Dance Magic achievements.
Earn rating S or higher at 20 music tracks on Hard difficulty in Freestyle.
Collect all arrows on Hard difficulty using ingame songs.
Earn rating M at any music track on Hard difficulty in Freestyle.
Collect 300 secret notes.
Complete the Tournament for all characters.
Perform 100 Specials.
Fill your Combo to level 10 and deal damage using Rage.
Defeat an AI opponent on maximum difficulty using custom music.
Collect 30 secret notes.
Pass any track for the first time on any difficulty.
Complete one Tournament.
Stun your opponent and defeat him until the stun is over.
Win for the first time in Dance battle.
Defeat an opponent in Freestyle online-multiplayer on Hard difficulty.
Defeat an online opponent in Dance battle on the track with BPM above 180.
Gain 999 999 money.
Buy for game currency everything that is sold.