Hold your breath and slow your heart. You can't make a sound. You're a ninja. From the shadow of a deep doorway, you hear footsteps echoing in the alley, pacing back and forth. Out here the city is asleep, and there are few noises to cover you. Your hiding place keeps you safe, but it also blocks your view.The target is out here somewhere, but he's not alone... Mark of the Ninja is a stealth game developed by Klei Entertainment for Xbox Live Arcade. Observe your enemies from afar, manipulate them with your tools, and execute your plan with precision. But be careful -- you're as fragile as you are powerful.