The Mutsuki Blade is a fictional weapon featured in the popular video game series Ninja Gaiden. It is known for its unique design and powerful abilities, often associated with the character Ryu Hayabusa, a skilled ninja. The blade is characterized by its sharp edge and intricate craftsmanship, making it a formidable tool in combat. In the game, the Mutsuki Blade is not just a weapon but also a symbol of honor and tradition within the ninja culture. Players can upgrade and enhance the blade's capabilities, allowing for more effective attacks against various enemies and bosses throughout the game.