Koga Ninjas were a group of covert agents from the Koga region in Japan, known for their skills in espionage, guerrilla warfare, and stealth. They were part of the broader ninja culture, which included various clans, each with unique techniques and philosophies. Koga Ninjas often specialized in gathering intelligence and conducting sabotage during the feudal period. Unlike their more famous counterparts, the Iga Ninjas, Koga Ninjas were less documented but still played a significant role in the history of Japanese martial arts. Their training included various skills such as climbing, swimming, and the use of weapons, making them versatile operatives in their time.