The game play is simple, you tilt the phone left or right to move Father Smith and tap/shoot all the baddies that come on the screen. When you kill something gems fall to the ground, when you walk over them you get more ammo. Better gems giving more ammo drop when you kill multiple monsters with a single shot. Gems also raise your special meter that grant you the big guns. If you get hit by a monster you loose ammo and when the ammo is gone Game Over so you better make each shot count because a single shot is six bullets.