Shinobi for the Sega Master System is an action-adventure game where you play as Joe Musashi, a skilled ninja. Your mission is to stop a criminal organization called “Zeed” who are kidnapping the children of the Oboro clan. The game consists of five missions, each with three or four stages. As Musashi, you must make your way to Zeed’s headquarters, free all the hostages, and confront the bosses in the final stage of each mission. Armed with throwing stars and finely-honed battle skills, you’ll take on mercenaries, karate thugs, and other dangers as you embody the stealthy art of the Master Ninja.