Shin Sangoku Musou 4 - Platform: XBox

Play as Cao Cao:
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Successfully complete the game with any four Wei officers to unlock Cao Cao.

Play as Cao Ren:
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Successfully complete the game with Cao Pi to unlock Cao Ren.

Play as Da Qiao:
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Successfully complete the game with Sun Ce to unlock Da Qiao.

Play as Diao Chan:
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Successfully complete the game with Lu Bu to unlock Diao Chan.

Play as Dong Zhuo:
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Successfully complete the game with Diao Chan to unlock Dong Zhuo.

Play as Gan Ning:
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Successfully complete the game with Ling Tong to unlock Gan Ning.

Play as Guan Ping:
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Successfully complete the game with Guan Yu to unlock Guan Ping.

Play as Huang Gai:
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Successfully complete the game with any three Wu officers to unlock Huang Gai.

Play as Jiang Wei:
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Successfully complete any three Shu Story modes to unlock Jiang Wei.

Play as Lu Bu:
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Successfully complete the game with one officer from Shu, Wu and Wei to unlock 
Lu Bu.