Inti Creates bigrp/bisar files (Switch)

[ChillyBilly]

So, it turns that a couple of the more recent Inti Creates games have their own audio formats (the titular bigrp/bisar files). I was wondering if there's some way to decode/make them playable somehow? The titles in particular are Blaster Master Zero II and Dragon Marked for Death. Thanks a bunch in advance for any help on the matter!