Unlockable How to Unlock Cao Cao and Lui Bei. Beat the game on any difficulty. Expert Difficulty Beat the game with Cao Cao on normal difficulty. The Battle of Chang Zheng Beat the game with Cao Cao on any difficulty. The Battle of East Lau Beat the game with Liu Bei on any difficulty.
Clear the game with both the Green and Red sides, and you will be able to choose game difficulty in the next game.
Contributed By: Muni Shinobu.
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