Unlock All Generals:
     Press  R1,  R2,  L1, L2, Square, Square, Triangle and Triangle at
the main menu to unlock all generals.

Unlock All Wu Generals:
     Press  R2, R1, L2, L1, Triangle, Triangle, Triangle and Square at
the main menu to unlock all Wu generals.

Unlock All Shu Generals:
     Press  R1,  R1,  L1, L1, Square, Triangle, Square and Triangle at
the main menu to unlock all Shu generals.

Unlock All Wei Generals:
     Press  R1, R1, L1, L2, Square, Square, Square and Triangle at the
main menu to unlock all Wei generals.