Dynasty Warriors
The name of Wei faction character Xu Zhu is actually misspelled in the English version of the game. The proper Romanization of his name, "許褚", should be Xu Chu. In Chinese 'Zhu' and 'Chu' are pronounced similarly.
Contributed by SamuraiGaiden
Historically, Diao Chan was one of the Four Beauties of ancient China. However, unlike the other three, there is no known evidence suggesting her existence. Chinese historical records mention Lu Bu secretly having an affair with one of Dong Zhuo's maids, who was never named. This leaves many to believe she was a fictional character.

In the Romance of the Three Kingdoms novel, she was a dancer under the loyal care of Wang Yun. The game changes this fact to a father/daughter relationship. Together, they both instigated a plan to use Diao Chan's charm to pit both Lu Bu and Doug Zhuo against one another, eventually leading to Bu kill Zhuo and taking Diao Chan for himself.
Contributed by DrakeVagabond
In Japan, Dynasty Warriors 2 was released under the name of "真・三國無双" (Shin Sangoku Musou) instead of "真-三國無双2" (Sangoku Musou 2). This was done so that it could be differentiated from the original Dynasty Warriors, since the two were different genres of games. Because of this, the Dynasty Warriors games are one number off between Japan and North America.
Contributed by Kitsune Hawk
Both Diaochan and Zhenji's Japanese dialogue contained sexually suggestive phrases, which were mostly censored in North American versions.
Contributed by DrakeVagabond
Dynasty Warriors draws inspiration from the historical novel, Romance of the Three Kingdoms, which entails the epic struggle of the three kingdoms of ancient China. Its aesthetics and themes were also inspired by Koei's strategy series of the same name.
Contributed by DrakeVagabond