K-1
(https://mega.nz/#!uJhXiQ6b!SxSuDUj9flT4583UTA0WBH7-Oz6QFkDeiJ4gIXEgWXc)
I used the CubeMediaPlayer 2 to rip and convert the music from the ISO of the game. The files called "Opening" and "Ending" were actually video files converted to audio files.

Enjoy. I don't think this has ever been ripped(I could be wrong, but I looked everywhere for a rip and found no results).