All weapons
In the title screen introduce:
L1, R1, X, X, Triangle, R1, R1, Triangle, Square, X, R1.
Two players for history and free
Enter the title screen:
L1, R2, O, O, Triangle, L2, R1, O, Triangle, or.
All the characters
In the title screen introduce:
R1, R2, x, left, right, square (4), L1, square, triangle, or.