KOEI announced that Nobunaga's Ambition: Rise to Power, a historical simulation from legendary game producer Kou Shibusawa, is available beginning today at North American retailers including GameStop, Best Buy, EB Games, Game Crazy, Amazon.com and GameFly. In Nobunaga's Ambition: Rise to Power, players will assume the role of Nobunaga, or of a rival warlord, in their quest to unite Japan under one rule. Packed with 7 dramatic scenarios - from the 1551 Struggle for Power to the events following Nobunaga's death in 1582, Nobunaga's Ambition: Rise to Power lets players embark on their quest from more than 300 different starting points.