Listen to the sound clip 4. BGM 4 from Shinobi (System 16A) 忍 - Video Game Music: 4. BGM 4 4. BGM 4 This sound is from Shinobi (System 16A) 忍 - Video Game Music Video game music from Shinobi (System 16A) 忍 for Arcade. Published by Sega (1987). Go to the full soundboardwith more sound clips Search