Dragon Quest IV: Chapters of the Chosen Cheats - Nintendo DS
Hints
Change the World Map Music
All eight characters must first join the hero's group in Chapter 5 (after defeating the Marquis de Léon) and then you can change the music by changing the first member of the party after doing so:
Chapter 1 world map music - Have Ragnar in the front of the party.
Chapter 2 world map music - Have Alena, Kiryl, or Borya in the front of the party.
Chapter 3 world map music - Have Torneko in the front of the party.
Chapter 4 battle music in Chapter 5 and 6 - Have both Meena and Maya in the front of the party.
Chapter 4 world map music - Have Meena or Maya in the front of the party.
Chapter 5 (after defeating the Marquis de Léon) world map music - Have the hero in the front of the party, with at least one other party member present.
Chapter 5 (prior to defeating the Marquis de Léon) world map music - Have only the hero in the party.
Psaro's theme - Have Psaro in the front of the party (in Chapter 6).