This is a hack of the Japanese version of the game Shadow of the Ninja known as “Yami no Shigotonin Kage”.
List of features, additions and changes:
1) No weapon power loss from being hurt or falling into pits. Weapon power resets when losing a life, however.
2) One Hit kills every enemy in the game (including bosses)
Kage: One Hit Edition (闇の仕事人 / HACK) – NES LONGPLAY
CRC-32: 459fbede
SHA-1: 4b4e73b3e4a6a1daebed19d0d6e91370422f3352