Shinobi (Wii)

Shinobi (忍 -SHINOBI-?) is an arcade game, developed and published by Sega. It was originally released in 1987 and ported to numerous systems. The game spawned numerous sequels. Shinobi is about a ninja named Joe Musashi who has to stop a criminal organization called "Zeed" who are kidnapping the children of the Oboro clan. Through five missions of increasing difficulty, Musashi must make his way to Zeed's headquarters and free all the hostages before confronting Zeed's leaders known as "Ring of Five", which are formidable enemies on their own. "Ring of Five" are the bosses at the end of each level.