To get Lu Bu you have to beat all three kingdoms on mousou mode.
Xiahou Dun Level 10 Weapon
Has to be on hard mode. Pick level of Xia Pi with Xiahou Dun. Wait until the cut scene were he's hit in the eye with an arrow. Run to Diao Chan and kill her.
Unlock All Generals
To unlock all generals, press R1, R2, L1, L2, SQUARE, SQUARE, TRIANGLE, TRIANGLE at the main menu.
Unlock All Shu Generals
To unlock all Shu Generals, press R1, R1, L1, L1, SQUARE, TRIANGLE, SQUARE, TRIANGLE at the main menu.
Unlock All Wei Generals
To unlock all Wei Generals, press R1, R1, L1, L2, SQUARE, SQUARE, SQUARE, TRIANGLE at the main menu.
Unlock All Wu Generals
To unlock all Wu Generals, press R2, R1, L2, L1, TRIANGLE, TRIANGLE, TRIANGLE, SQUARE at the main menu.
Unlock Alternate Costumes
To unlock alternate costumes, press L1, L1, R1, R1, TRIANGLE, TRIANGLE, SQUARE, SQUARE at the main menu.
