Pkunk is the theme of Pkunk, Star Control alien race who look like birds and related to Yehat. It appears probably in each port of Star Control 2.
Star Control II (DOS)
This tune is used when you are talking with any Pkunk captain.
The original MOD file is named "pkunk.mod" and contain two tracks. The first is this song, usage of the second is indefined.
Star Control II (3DO)
This song plays in the same places with original DOS release. The original track was converted to CD audio.
The Ur-Quan Masters (W32)
This song plays in the same places with original Star COntrol II DOS release. The only difference is the ability to play officially remixed songs (while tuned).
It's unknown if GP2X version has music.