Yaiba: Ninja Gaiden Z is an action adventure hack and slash game, and a spin-off of the Ninja Gaiden franchise. It was published by Tecmo Koei and developed by Spark Unlimited. Comcept's Keiji Inafune conceptualized the game, providing character designs and creating the character of Yaiba. The game was released for the PlayStation 3, Xbox 360, and Microsoft Windows worldwide in March 2014, Gameplay. Yaiba: Ninja Gaiden Z is a third-person hack and slash video game that features elements similar to previous titles in the series. Players can run, jump, block and attack enemies using Yaiba's blade. A score multiplier on the right-hand of the screen accumulates the player's hit-count on the enemy. The "Ultimate Technique" mode seen in other titles has been replaced by a mode called "Bloodlust" which, when activated, allows Yaiba to destroy multiple enemies around him in quick succession.