The cheat is L1, L1 , left, L1 ,L1 ,right ,square, triangle ( only works for PSP .)
L1 is the left 'shoulder' button.
the cheat is: L1, L1, LEFT, L1, L1, RIGHT, TRIANGLE, CIRCLE
The L1 button is the left 'shoulder' button. While the PSP doesn't technically have a L2, games that need it usually have it mapped to the PSP's analogue stick.
The cheat code is L1, L1, LEFT, L1, L1, RIGHT, TRIANGLE, CIRCLE
L1, R1, Circle, L1, R1, Square
Threre is no L2 on the psp,there is only L1 or L, but there is on ps2 and ps3
For PSP the tank cheat is L1,L1,LEFT,L1,L1,RIGHT,TRIAGLE,CIRCLE. The tank is completely invincible and destroys any car (except for other tanks) in one hit.
the cheat is L1 L1 X X R1 O X
Cirlce,x,up,circle,x,down,l1,l1
It is the left 'shoulder' button, L1.
L1,l1,triangle,r1,r1,x,square,circle