Much like Wrath of Heaven, the previous entry in the series, Fatal Shadows uses the same engine. The ability to drag the victims' dead bodies after a kill returns, a mechanic only previously seen in Tenchu 2 Birth of the Stealth Assassins and Tenchu Return From Darkness, the Xbox port of Wrath of Heaven. Instead of increasing Kanji points after a stealth kill, scrolls are gathered, and the number of required scrolls increases as the player progresses through the story. Double stealth kills are possible when two enemies are together, and each stealth kill has a name listed below as the animation plays out.