List of sound playables on this page (10 files):

shinobi - 01 - bgm 1.vgz
shinobi - 02 - bgm 2.vgz
shinobi - 03 - bgm 3.vgz
shinobi - 04 - bgm 4.vgz
shinobi - 05 - stage clear.vgz
shinobi - 06 - boss bgm 1.vgz
shinobi - 07 - mission clear.vgz
shinobi - 08 - bonus stage.vgz
shinobi - 09 - boss bgm 2.vgz
shinobi - 10 - continue.vgz