Successfully complete the game with Dian Wei to see Zhen Ji dancing. You can also see Zhen
Ji dancing by completing Musou mode with Zhang He.

Play Huang Gai on the hard difficulty setting at the battle of Chi Bi for Allied forces.
Follow orders to execute the fire attack against the Wei (Cao Cao's) forces. Defeat Zhang
Liao (and possibly some other generals as well) before defeating Cao Cao. A "Special Item"
should be found near the place of prayer at the southwestern end of the map. The Shadow
Rod is a +44 attack weapon with 6 hits. It also adds +27 Musou Charge, +82 HP Max, +57
Defense, +52 Mounted Attack, and +23 Reach.

Successfully complete Musou mode with Sun Shang Xiang, Xiao Qiao, Da Qiao, and Zhen Ji to
unlock Nu Wa.

At the main menu, press White, Black, X, Y, White, R, L, Black. If you entered the code
correctly, you will hear a sound.