Koga and Iga in the film are the two most famous ninjutsu genres in Japan. Every ninja who participates in the battle of life and death possesses amazing special powers, such as the "eye of destruction" by the obscurity, the "eye art" of Kananosuke, the poison power of Kagerou, and the "immortal golden body" of the Tensen of Yakushiji Temple. etc. In order to present these splendid and exciting ninja's peculiar super-power martial arts, the film party invested a lot of money to create dazzling and super cool action scenes, which is really a feast for the eyes.
In addition, the film also discusses the way out of the ninja. During the Warring States period when the Japanese vassals ruled, the ninjas became an important tool used by the princes to protect themselves and deal with enemies with their unique abilities. Existing as a weapon and fighting to death for honor is the fate of a ninja in troubled times, and it is also the only cognition of the value of its existence by a ninja. However, when Tokugawa Ieyasu unified Japan, and the time of peace came, the ninja was bound to face a major turning point in his destiny. The so-called "cunning rabbit to die, wild dog cooking", Tokugawa Ieyasu tried to eliminate the mysterious and unruly ninja power, avoiding future troubles. And within the ninja, there are also different opinions on where to go. The new generation of ninjas represented by Kazunosuke Kazuo believes that ninjas are also humans and have the right to pursue happy love and a peaceful life, but they can hardly reverse their irresistible tragic fate. The traditional ninja represented by the ancestors of the two and the stubborn Tsukuma Koshiro among the ten ninjas still firmly believes that fighting is their only destiny. At the end of the film, the idealistic Kannosuke sacrificed his life and defended love; he was more realistic and modest than Kannosuke and survived, and at the cost of self-destructing his eyes, he was exchanged for Tokugawa Ieyasu's and Kogakazu. The preservation of the two villages of Iga led the surviving tribesmen to start a new life in a peaceful age
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