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Shadow Dancer (シャドー・ダンサー), known as Shadow Dancer: The Secret of Shinobi on Master System covers, is an action platform game developed by Sega for the Sega System 18 arcade system in 1989. A port of the game was published by Sega for the Sega Master System, and ports to several home computers were published by U.S. Gold. Alongside The Revenge of Shinobi, this game was the first sequel to Shinobi.
The young Ninja battles together with his faithful pet dog. In the center of the city, a group of terrorists are committing known to man, including the planting of time bombs throughout the metropolis. Our youthful hero and his canine companion courageously set out to gather all the explosives placed by the evil gang and annihilate the syndicate that manipulates them.
At the time of release, Shadow Dancer was not strictly affiliated with Shinobi in terms of plot, though the set-up is very similar to the original arcade game. The naming of the characters varies between home versions of the game, as do their motives.
Shadow Dancer expands on the gameplay seen in Shinobi, being a side-scrolling action game inspired by the likes of Namco's Rolling Thunder. The original game's moveset remains in-tact, however rather than saving children, the task is to defuse bombs. Most notably, Shadow Dancer adds an AI-controlled dog which can be used to take down enemies.