This variation of Shinobi utilizes the System 16B hardware and is identified as 'set 2'. The decrypted ROM version (FD1094 317-0049) likely signifies a specific build or region-specific release of the game.  Despite the hardware change, gameplay generally adheres to the classic Shinobi formula: side-scrolling action, melee combat, and projectile use.

Shinobi (set 2, System 16B, FD1094 317-0049 decrypted)

Shinobi (beta version, System 16A)