Cheat

Code

All weapons and upgrades

Hold L + R → press Up - Up - Down - Down - Left - Right - Left - Right - X - O

Ammo

Hold L + R → press Triangle - Triangle - X - X - Square - Circle - Square - Circle - Down - Right

Invincibility

Hold L + R → press Up - Up - Down - Down - Left - Left - Right - Right - Square - Triangle

Unlimited ammo

Hold L + R → press Triangle - Triangle - X - X - Square - Circle - Square - Circle - Right - Down