I really wish the custom music was fixed.

In normal FGunZ, the background music is set to different parts, e.g. login screen, ingame, etc. However, using custom music, the song is completely random and nothing is set to a specific part.

It'd be really nice if I were able to do that.

The main point of this thread was really to be able to open the bgm.fgz file and see if I can implement my own music from there, but I've tried with practically all file extensions and I can't find anything to open it with (unless I need to open it with a program I haven't got).