Dynasty Warriors 4 (PS2)

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 All Generals
To unlock all generals, press R1, R2, L1, L2, Square, Square, Triangle, Triangle at the main menu.

Unlock Alternate Costumes
To unlock alternate costumes, press L1, L1, R1, R1, Triangle, Triangle, Square, Square at the main menu.