Question about ".pak"

How do I rip it? I want to have the soundtrack of the game Nitro Royale, but I don't knowhow to rip it. Any help guys?

[kouryuu]

you can use susie to get at the .pak file contents, from there its a copy paste.
Susie is here:
http://www.digitalpad.co.jp/~takechi.../susie347b.lzh
with plugins here:
http://www.age.ne.jp/x/gammax/spis/gmcp0907.lzh

Or it least the program worked on the comic party .paks to get at both images and the wav files.