Nobunaga's Ambition - Iron Triangle - Platform: Playstation 2 Bonus scenarios: ---------------- Successfully complete the indicated task to unlock the corresponding scenario: Battle Of Nagashino: Successfully complete the "1582" scenario in Unification mode. Incident In Osaka: Successfully complete a "Unification" scenario with a "Regent" rank. Onin Legacy: Successfully complete a "Unification" scenario with a "Shogun" rank. Ten Years After: Successfully complete the "1570" scenario in Unification mode. The Final Battle: Successfully complete a "Unification" scenario with all researchable Zechnologies completed. To Declare War: Successfully complete a "Unification" scenario while playing as the Oda Clan, and view five Nobunaga-related events. Bonus officers: --------------- Successfully complete the indicated task to unlock the corresponding officer: Bokuden Tsukahara, Chiyo Yamanouchi, Goemon Ishikawa, and Sukezaemon Ruson: Successfully complete one of the "4-Star" scenarios in Challenge mode. Masashige Kusunoki: Successfully complete the Kinki region in Local mode. Michizane Sugawara: Successfully complete the Kyushu region in Local mode. Munetaka Nasu: Successfully complete the Sanyo/Sanin/Shikoku region in Local mode. Takauji Ashikaga: Successfully complete the Kanto region in Local mode. Tamuramaro Sakanoue: Successfully complete the Ezo/Mutsu/Dewa region in Local mode. Yoshinaka Kiso: Successfully complete the Koshin/Hokuriku/Tokai region in Local mode.