http://www.xbox.com/en-US/games/n/ninjagaiden2/default.htmSome interesting bits.
30-hour story mode
Multiple difficulty levels available from the start of the game
Ninja Gaiden 2’s new auto-healing system featuring semi-permanent damage restored at save points
Ninja Gaiden® 2 makes its long-awaited debut on Xbox 360™ as the blockbuster action-packed sequel to Ninja Gaiden. Ninja Gaiden 2 features a new and improved game engine, developed from the ground up, exclusively for Microsoft and Xbox 360 by Team Ninja and legendary game developer Tomonobu Itagaki, creator of the famed Dead or Alive” franchise.
Guide Ryu Hayabusa on a mission to avenge his clan and prevent the destruction of the human race. Armed with an assortment of ninja weaponry, help Ryu to skillfully maneuver through a world fraught with peril and danger. Ninja Gaiden 2 features an all-new gameplay engine, new auto-health regeneration system, levels, adventures, enemies, and thrilling combat with an extensive assortment of ninja weaponry, representing a true evolution of the highly popular franchise.
Exhilarating ninja action: Assuming the role of a ninja warrior, experience the new "finishing blows" system that combines gore with fast action and a well-honed combat system. In addition to a variety of brutal new primary weapons and enhanced versions of previous favorites, Ninja Gaiden 2 features both land and water-based action with advanced on-water battles providing a beautiful counterpoint to the land-based action.
Easy to play, hard to master: Ninja Gaiden 2’s new auto-healing system featuring semi-permanent damage restored at save points is the natural evolution of the franchise’s distinctive gameplay, and introduces a new twist to managing health. Featuring a newly implemented auto-healing functionality and save point system, as well as an extensive story mode and multiple difficulty levels available from the start of the game, the gameplay is accessible to more casual players and challenging to even the most demanding gamers.
Massive content and engrossing story: The themes of revenge and friendship in Ninja Gaiden 2 give rise to a series of dramatic events to create a truly compelling story. From Tokyo to New York and to the Netherworld, the story leads you through a 30-hour story mode as you skillfully maneuver Ryu Hayabusa through a demonized world fraught with peril and danger. In addition to the single-player campaign, upload Karma scores to Xbox LIVE® leaderboards and participate in an all-new Master Ninja Tournament.
Realistic graphics in next-generation gaming: Built from the ground-up from Team Ninja’s in-house gaming engine for Xbox 360, Ninja Gaiden 2 represents the best in amazing visuals, responsive control, and thrilling combat with an extensive assortment of ninja weaponry.