Successfully complete the indicated chapter to unlock the corresponding song in the BGM player as well as Free mode.

Chapter 1: Koi no Mikuru Densetsu.
Chapter 2: Bouken Desho Desho?
Chapter 3: Yuki, Muon, Madobe Nite.
Chapter 4: Mirakuru Anko-ru.
Chapter 5: Greed's Accident.
Chapter 6: Saikyou Pare Pare-do.
Chapter 7: Guuzen Miman ha Misenaide.
Chapter 8: Hare Hare Yukai.
Chapter 9: Be Be Beat!! ending theme.
Chapter 10: Hare Hare Yukai TV version.