Silent but deadly... The blowgun, known as fukiya, was used to shoot darts (sometimes poisoned) at an enemy from a distance and, since it made almost no noise, the assassin Ninja’s hiding place wasn’t threatened by using this weapon. Aside from launching darts, the blowgun could be used as a snorkel while the Ninja was underwater. Since the fukiya was made of bamboo, it blended in with the reeds in the water, therefore enabling the Ninja to stay submerged for hours, if necessary.