Cheese,
Where can I start? Basically, Its set in 2100,
You are a genetically modified "Ninja"(sort of any way). You have to save the world from the possesed Myamoto Musashi before the spirits destroy the world we worked so hard to build.
Obviously, Musashi is a japanese hero, so the ending won't involve his death. You have to train hard to get up to his skill level, along with compleating stealthy reconnisance missions in many luxorious locations,(Japan, Greece, England, Russia and New York). But its not all stealth, there are multiple slice and dice battles, shootouts and of course a free roam of the cityscape.
Enjoy!
(as yet the main