Shu Forces
Guan Yu:           Clear Shu Story - Stage 7
Zhang Fei:         Clear Shu Story - Stage 7
Zhuge Liang:       Clear Shu Story - Stage 7
Liu Bei:           Clear Shu Story - Stage 8
Ma Chao:           In Samurai Warriors Story - Gaiden 2, 
                   make sure that all peasants escape 
                   and Ma Chao survives
Huang Zhong:       Clear Samurai Warriors Story - Stage 1
Jiang Wei:         In Shu Story - Gaiden 2, succeed in initiating 
                   Jiang Wei's ambush plan
Wei Yan:           Clear Shu Story - Stage 3
Pang Tong:         Clear Wei Story - Stage 4
Yue Ying:          Clear Shu Story - Stage 2
Guan Ping:         Clear Samurai Warriors Story - Stage 1

Wei Forces
Xiahou Dun:        Clear Wei Story - Stage 4
Dian Wei:          Clear Wei Story - Stage 7
Xu Zhu:            Clear Wei Story - Stage 1
Cao Cao:           Clear Wei Story - Stage 7
Xiahou Yuan:       Clear Wei Story - Stage 4
Sima Yi:           In Samurai Warriors Story - Gaiden 6, 
                   foil Sima Yi's strategy 
                   by killing the two retreating Orochi generals
Zhang He:          In Wei Story - Gaiden 2, 
                   rescue Zhang He and defend the HQ
Pang De:           In Shu Story - Gaiden 3, 
                   rescue all of the Hojo (yellow) generals
Zhen Ji:           In Wei Story - Gaiden 6, defeat all magicians 
                   and the fake Cao Pi by yourself as fast as possible

Wu Forces
Xiao Qiao:         Clear Samurai Warriors Story - Stage 3
Da Qiao:           In Wu Story - Gaiden 5, 
                   meet Da Qiao before the enemy does
Huang Gai:         Clear Wei Story - Stage 5
Gan Ning:          Clear Wei Story - Stage 6
Lu Meng:           Clear Wu Story - Stage 3
Sun Quan:          Clear Wu Story - Stage 7
Sun Jian:          Clear Wu Story - Stage 7
Sun Shang Xiang:   Clear Wu Story - Stage 5
Taishi Ci:         Clear Wu Story - Stage 2
Lu Xun:            In Samurai Warriors Story - Gaiden 3, 
                   escort Lu Xun to your HQ
Zhou Yu:           Clear Wu Story - Stage 1
Zhou Tai:          Clear Wu Story - Stage 6
Ling Tong:         Clear Samurai Warriors Story - Stage 5

Unaffiliated / Independent Forces
Diao Chan:         Complete 5th Wei Gaiden- Diao Chan must survive
Lu Bu:             Impress Lu Bu by defeating him 
                   in all stories - Gaiden 8
Yuan Shao:         Clear Shu Story - Stage 5
Zhang Jiao:        Clear Samurai Warriors Story - Stage 3
Meng Huo:          Clear Shu Story - Stage 4
Zhu Rong:          Clear Shu Story - Stage 4
Zuo Ci:            Finish all 4 stories
Da Ji:             Clear all stages in the game, 
                   including Gaiden stages
Orochi:            Unlock all characters besides Orochi
Dong Zhuo:         In Samurai Warriors Story - Gaiden 4, prevent 
                   all money supply troops from reaching Dong Zhuo

Samurai Warriors 1 Forces
Sanada Yukimura:   Clear Shu Story - Stage 3
Uesugi Kenshin:    Clear Samurai Warriors Story - Stage 7
Oichi:             Clear Wei Story - Stage 6
Okuni:             Clear Samurai Warriors Story - Stage 3
Saika Magoichi:    Clear Shu Story - Stage 2
Takeda Shingen:    Clear Samurai Warriors Story - Stage 7
Mori Ranmaru:      Clear Wu Story - Stage 1
Kunoichi:          In Wu Story - Gaiden 4, escort all peasants
Ishikawa Goemon:   In Shu Story - Gaiden 4, break all of Goemon's 
                   treasure boxes
Maeda Keiji:       In Wu Story - Gaiden 6, make sure all ally 
                   reinforcements are alive and reach Keiji's base 
                   before time limit shows 10 minutes remaining

Samurai Warriors 2 Forces
Imagawa Yoshimoto: In Wei Story - Gaiden 4, 
                   prevent all ploy troops from entering the village
Honda Tadakatsu:   Impress him in all stories - Gaiden 7
Inahime:           Clear Wu Story - Stage 5
Ishida Mitsunari:  Clear Wei Story - Stage 2
Azai Nagamasa:     Clear Wei Story - Stage 6
Shima Sakon:       Clear Wu Story - Stage 3
Tachibana Ginchiyo:Clear Shu Story - Stage 1
Naoe Kanetsugu:    Clear Samurai Warriors Story - Stage 7
Nene:              In Wei Story - Gaiden 3, defeat the two Nene clones 
                   within 4 minutes after their appearances
Fuuma Kotaro:      In Wu Story - Gaiden 2, defeat him after all supply 
                   troops have reached your HQ
Miyamoto Musashi:  In Shu Story - Gaiden 6, open the dam and keep 
                   all the swordsmen (yellow) alive