Summary

The Dragon Sword (龍剣 Ryūken?, Dragon Sword) is the primary weapon used by Ryu Hayabusa in the Ninja Gaiden video game series. The completed form of this weapon is known as the True Dragon Sword (真龍剣 Shinryūken?, True Dragon Sword). In this state, it is a divine weapon of immense power and, canonically, one of the most powerful weapons in Ninja Gaiden.