How do I give each BrawlEX character a Custom Victory Theme?

[KeiroStarr]

Upon analizing Nebulon's pack, seems he managed to give several BrawlEx clones their own victory themes. (Megaman, Cloud Strife, Scott Pilgrim), and as far I can tell, he managed to do it without codes. I would imagine it would have to do with the Config files and using unused IDs in the BRSAR, but I can't say for certain. does anyone know how I could go about doing this?