Super app
Favorite app of my grandson! He discovered that with any of the machine guns, if you turn off your iPhone while firing the gun, the sound effect continues for a short time. Then, if you turn the phone back on, the same gun will fire without touching the screen. This continues until you run out of ammo, or, with the mini gun, it fires indefinitely since that particular firearm never seems to run out of ammo! Kinda fun...
Baba "B" about
iGunz - Machine Gun Mania