Mark of the Ninja is unique a 2D stealth platformer coming this summer to Xbox LIVE Arcade. You are a ninja who bears the mark — a tattoo whose ink bestows heightened senses, but at a terrible cost. You'll observe your enemies from the darkness, manipulate them with simple yet versatile tools, and experience the tension and thrill of being a ninja.
If this is the first you're hearing about the game, you'll find more details here: http://www.markoftheninja.com