English
Use Boss character Longev 17'e:
Finish the game with any character in Attack Mode
Use Boss character Untitled:
Finish the Attack Mode with every character, including Longev 17'e, then you will get
Untitled.
Use Hidden character Vigoureux:
When you get Untitled, use him to finish the Attack Mode again, you will get Vigoureux.
(Note that when you get a new boss or hidden character, the number of BGMs in Option mode will
increase
accordingly)
