The script for bhf already exists and works with the sample you provided (please next time only the files, not whole game).http://aluigi.org/bms/popeye_bhf.bms
Regarding the extracted files they are not encrypted or compressed, but don't expect an easy-life since they are not known formats.
Absolutely no idea for the audio, the bigger files aren't raw pcm audio.
Oh, thanks! It seems relatively new bms script, i searched but didnt find it first. Ok, i will dig what format i uses.viewtopic.php?f=9&t=7316
I'll remove the links then.