Kirby and the Forgotten Land new file bfsar.cmpbin

[Random Talking Bush]

Edit: Ok, while QuickBMS can extract the bfsar from the cmpbin just fine, for some reason Citric Composer doesn't recognize the bfsar, saying the "Index was out of range. Must be non-negative and less than the size of the collection." What does it mean? Did I do something wrong?

I think it's just that Citric Composer might not be compatible with the specific BFSAR version used for that (as I encountered the same issues with that and a handful of other games I tested). The sounds themselves are working just fine, it's just that you'll need to find another method to split the FWAVs and such from those.