A shuriken (手裏剣; lit. "sword hidden in user's hand") is a traditional Japanese concealed weapon that was generally used for throwing, and sometimes stabbing or slashing. They are sharpened hand-held blades made from a variety of everyday items, such as needles, nails and knives, as well as coins, washers, and other flat plates of metal. Shuriken is the name given to any small-bladed object, while shaken is traditionally used to indicate the well-known "throwing star".
Shuriken are commonly known in the West as throwing stars or ninja stars although they were originally designed in many different shapes. The major varieties of shuriken are the bō shuriken (棒手裏剣, stick shuriken) and the hira shuriken (平手裏剣, flat shuriken) or shaken (車剣, also read as kurumaken, wheel shuriken).
Contrary to popular belief, shuriken were not primarily intended as killing weapons, but rather in a secondary role as a nuisance or distraction. Targets were primarily the more exposed parts of the body: the eyes, face, hands, or feet. The shuriken would sometimes be thrown in a way that slashed the opponent in a glancing blow and travelled on, becoming lost, causing the opponent to believe that the cut had been made by an invisible swordsman.
In Shinobido Edit
By themselves, the shuriken aren't very damaging, and can be easily blocked (for example, the Taraba are immune to them), but the player can combine the effect of Potions of Strength and the Limitless Weapons scroll to make shuriken truly deadly. Besides their use as a weapon, they can serve as good distractions against patrolling enemies, either by making noise, throwing one so the enemy is distracted searching for it, or damaging an enemy so they become agitated.