Note: This game is also titled Musou Orochi.

Bonus characters - Successfully complete the indicated task to unlock the corresponding character:

Azai Nagamasa: Successfully complete Stage 6 in Wei Story mode.

Cao Cao: Successfully complete Stage 7 in Wei Story mode.

Da Ji: Successfully complete all stages in the game, including the Gaiden stages.
Da Qiao: Meet Da Qiao before the enemy does in Wu Story mode in Gaiden 5.
Dian Wei: Successfully complete Stage 7 in Wei Story mode.

Fuuma Kotaro: Defeat him after all supply troops have reached your HQ in Wu Story mode in Gaiden 2.

Gan Ning: Successfully complete Stage 6 in Wei Story mode.
Guan Ping: Successfully complete Stage 1 in Sengoku Story mode.
Guan Yu: Successfully complete Stage 7 in Shu Story mode.

Honda Tadakatsu: Impress him in all Story modes in Gaiden 7.
Huang Gai: Successfully complete Stage 5 in Wei Story mode.
Huang Zhong: Successfully complete Stage 1 in Sengoku Story mode.

Imagawa Yoshimoto: Prevent all ploy troops from entering the village in Wei Story mode in Gaiden 4.
Inahime: Successfully complete Stage 5 in Wu Story mode.
Ishida Mitsunari: Successfully complete Stage 2 in Wei Story mode.

Jiang Wei: Succeed in initiating Jiang Wei's ambush plan in Shu Story mode in Gaiden 2.

Kunoichi: Successfully escort all peasants in Wu Story mode in Gaiden 4.

Ling Tong: Successfully complete Stage 5 in Sengoku Story mode.
Liu Bei: Successfully complete Stage 8 in Shu Story mode.
Lu Bu: Impress Lu Bu by defeating him in all Story modes in Gaiden 8.
Lu Meng: Successfully complete Stage 3 in Wu Story mode.
Lu Xun: Successfully escort Lu Xun to your HQ in Sengoku Story mode in Gaiden 3.

Ma Chao: Make sure that all peasants escape and Ma Chao survives in Sengoku Story mode in Gaiden 2.
Meng Huo: Successfully complete Stage 4 in Shu Story mode.
Miyamoto Musashi: Successfully open the dam and keep all the yellow swordsmen alive in Shu Story mode in Gaiden 6.
Mori Ranmaru: Successfully complete Stage 1 in Wu Story mode.

Naoe Kanetsugu: Successfully complete Stage 7 in Sengoku Story mode.

Nene: Defeat the two Nene clones within 4 minutes after their appearances in Wei Story mode in Gaiden 3.

Oichi: Successfully complete Stage 6 in Wei Story mode.
Okuni: Successfully complete Stage 3 in Sengoku Story mode.
Orochi: Unlock all characters besides Orochi.

Pang Tong: Successfully complete Stage 4 in Wei Story mode.

Saika Magoichi: Successfully complete Stage 2 in Shu Story mode.
Sanada Yukimura: Successfully complete Stage 3 in Shu Story mode.
Shima Sakon: Successfully complete Stage 3 in Wu Story mode.
Sima Yi: Foil Sima Yi's strategy by killing the two retreating Orochi generals in Sengoku Story mode in Gaiden 6.
Sun Jian: Successfully complete Stage 7 in Wu Story mode.
Sun Quan: Successfully complete Stage 7 in Wu Story mode.
Sun Shang Xiang: Successfully complete Stage 5 in Wu Story mode.

Tachibana Ginchiyo: Successfully complete Stage 1 in Shu Story mode.
Taishi Ci: Successfully complete Stage 2 in Wu Story mode.
Takeda Shingen: Successfully complete Stage 7 in Sengoku Story mode.

Uesugi Kenshin: Successfully complete Stage 7 in Sengoku Story mode.

Wei Yan: Successfully complete Stage 3 in Shu Story mode.

Xiahou Dun: Successfully complete Stage 4 in Wei Story mode.
Xiahou Yuan: Successfully complete Stage 4 in Wei Story mode.
Xiao Qiao: Successfully complete Stage 3 in Wu Story mode.
Xu Zhu: Successfully complete Stage 1 in Wei Story mode.

Yuan Shao: Successfully complete Stage 5 in Shu Story mode.
Yue Ying: Successfully complete Stage 2 in Shu Story mode.

Zhang Fei: Successfully complete Stage 7 in Shu Story mode.
Zhang He: Successfully rescue Zhang He and defend the HQ in Wei Story mode in Gaiden 2.
Zhang Jiao: Successfully complete Stage 3 in Sengoku Story mode.
Zhou Tai: Successfully complete Stage 6 in Wu Story mode.
Zhou Yu: Successfully complete Stage 1 in Wu Story mode.
Zhu Rong: Successfully complete Stage 4 in Shu Story mode.
Zhuge Liang: Successfully complete Stage 7 in Shu Story mode.
Zuo Ci: Finish all four Story modes.

Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Available officers - 15 (20 points): Save the game with 15 or more officers unlocked.
Available officers - 20 (20 points): Save the game with 20 or more officers unlocked.
Available officers - 25 (20 points): Save the game with 25 or more officers unlocked.
Available officers - 30 (20 points): Save the game with 30 or more officers unlocked.
Available officers - 35 (20 points): Save the game with 35 or more officers unlocked.
Available officers - 40 (20 points): Save the game with 40 or more officers unlocked.
Available officers - 45 (20 points): Save the game with 45 or more officers unlocked.
Available officers - 50 (20 points): Save the game with 50 or more officers unlocked.
Available officers - 55 (20 points): Save the game with 55 or more officers unlocked.
Available officers - 60 (20 points): Save the game with 60 or more officers unlocked.
Available officers - 65 (20 points): Save the game with 65 or more officers unlocked.
Available officers - 70 (20 points): Save the game with 70 or more officers unlocked.
Available officers - 75 (20 points): Save the game with 75 or more officers unlocked.

All officers available (70 points): Save the game with all officers unlocked.

Ability level 20 (30 points): Save the game with the total level of acquired abilities at 20 or higher.
Ability level 40 (30 points): Save the game with the total level of acquired abilities at 40 or higher.
Ability level 60 (30 points): Save the game with the total level of acquired abilities at 60 or higher.
Ability level 80 (30 points): Save the game with the total level of acquired abilities at 80 or higher.
Ability level 100 (30 points): Save the game with the total level of acquired abilities at 100 or higher.

Level four weapon acquisition (40 points): Save the game after acquiring the fourth weapon.

Unique item acquisition (40 points): Save the game after acquiring the unique item.

Clear Shu storyline (50 points): Save the game after clearing the Shu storyline.
Clear Wei storyline (50 points): Save the game after clearing the Wei storyline.
Clear Wu storyline (50 points): Save the game after clearing the Wu storyline.
Clear Samurai storyline (50 points): Save the game after clearing the Samurai storyline.

Unlock Shu Chapter 8-X (60 points): Save the game after unlocking Chapter 8-X of the Shu storyline.
Unlock Wei Chapter 8-X (60 points): Save the game after unlocking Chapter 8-X of the Wei storyline.
Unlock Wu Chapter 8-X (60 points): Save the game after unlocking Chapter 8-X of the Wu storyline.
Unlock Samurai Chapter 8-X (60 points): Save the game after unlocking Chapter 8-X of the Samurai storyline.