The Mysterious Murasame Castle (1986)

Restore peace to a land that has been overridden by evil! One stormy night in feudal Japan, a mysterious force begins to take control over Murasame Castle and its lands. Each lord in four neighboring castles has taken possession of a dark sphere of power, allowing them to summon ninja armies and monsters that wreak havoc in the villages. Takamaru, a brave and young samurai apprentice, has been sent to investigate. He must infiltrate all four castles and defeat the lords before making his way to Murasame Castle. Use sword and shuriken attacks against the swarms of enemies, and unlock the secret behind the source of evil. The game was at first released exclusively for the Famicom in Japan, but it would come to the rest of the world for the first time in 2013 as part of the 3DS virtual console, as well as for Nintendo Switch Online in 2023.