Here are some cheats and tips for the game Spy Hunter 2.
All weapons and missions:
Press L1, R2, L2, R1(2), L2, R2, L1 at the main menu.
Unlimited ammunition:
Press Start to pause game play, then press R1, L1,
R2(2), L2, R1, L1, R2, L2. Repeat this code to disable
its effect.
Invincibility:
Press Start to pause game play, then press L1(3), R2,
L1, R1(2), L1, R2. Repeat this code to disable its effect.