Ninjutsu techniques are a set of skills and strategies used by ninja, historical covert agents in Japan. These techniques encompass various disciplines, including stealth, espionage, and guerrilla warfare. Practitioners learn to move silently, gather intelligence, and execute surprise attacks, often using the environment to their advantage. In addition to combat skills, ninjutsu also includes survival techniques, such as foraging and navigation. Practitioners study the use of tools and weapons, including shuriken and katana, to enhance their effectiveness in various situations. Overall, ninjutsu emphasizes adaptability, resourcefulness, and the element of surprise.