I didn't like the Megadrive version much, because apart from the dog, it had nothing new on offer and the game simply wasn't anywhere near as good as Revenge of Shinobi. On the Master System, Shadow Dancer fares better, but even so I'm still left with a nagging doubt. Getting to each end-of-level boss is easy, but until you work out the method and magic required to do them away, you get stuck. Once you finally succeed, you go straight through to the next boss where you get stuck again, making progress rather sporadic and frustrating. A shame, really, because otherwise this is a fine game with good graphics and plenty of variety. Ardent Shinobi fans might enjoy it, but at the end of the day my overall feeling is that with a few more gameplay tweaks, this could have been so much better.