When you make an army put the 5 tiger generals like Guan Yu, Zhang Fei, Ma Chao, Zhao Yun, and Huang Zhong into the same party and at the beginning of each battle they will talk and get morale+10.
When forming an army, put Xiahou Dun, Xiahou Yuan, Cao Ren, and Cao Hong into the same unit. At the start of battle a dialogue will intiate with the four and each will receive a morale boost of 10. Keep these generals in the same unit for this to repeat every battle.
When you form a army with Sun Ce, Sun Shang Xiang, Sun Quan you will get a boost of 10 morale.
To do this cheat you have to have completed the game with a kingdom. You then go to scenario to veiw the FMV you have unlocked.Choose a character(Liu Bei,Cao Cao...)Then,hold down on the control pad and just as it lands on the scenario chapter you have unlocked,keep holding down and press x.If done right you will land on the section with '????????' on it and enter it.You can view FMV you havent unlocked yet.