Get So In Love Song:
Finish 20 stages using Arcade Mode
Get Kind Lady Song:
Finish 40 stages using Arcade Mode

Get Max 300 level:
Complete the last song using heavy mode and get a AA rank or finish 100 songs in heavy mode

Get Candy Level:
Finish the Max 300 stage and get a AA rank.

Get Trance Sunrise Mix Song:
Complete 2 of the following songs, Dive, True or Firefly