typically requires using an emulator with cheat database support, such as MAME4droid
Some advanced codes can fix the ammo count at a permanent value, such as 50 bullets. Weapon Selection Codes Cadillacs And Dinosaurs Unlimited Gun Cheat Android
There are standalone "Cheat Guide" apps for Android that provide instructions or small overlays to inject codes into the game. These often function similarly to a manual for the emulator's cheat system. Gameplay Summary for Gun Use typically requires using an emulator with cheat database