A free program for Android, by Tiny Roar.

When the devil appears on the earth, humanity has only one choice: to send its best warriors to fight him. Are you ready to be one of the chosen ones? The world is in a state of chaos and violence. 

As a warrior on the battlefield, you need to use your gun skills to defeat your opponents and use the battlefield’s terrain to your advantage. 

Fight with other players and the enemies in the world and climb the ladder to become the ultimate overlord. Use the PVP system to gain points and rewards and become the number one player in the world.