From the review, "The Tenchu games center around stealth. Unlike most third-person action games where you run and fight and shoot pretty much everything you see, Tenchu requires you to hide in the shadows, rafters and barrels, waiting for the best moment to strike so you don't actually have to fight. In fact, if you play this game just right, it's rare you'll have to confront anyone at all.
Only when you mistime an attack or are spotted will you have to pull out your sword for face to face combat. The rest of the game, you'll be snapping the neck of your enemies before they've even felt your presence. That's kind of what being a ninja's all about, isn't it..."