A free app for Android, by BMG Inc..

Gang Battle Arena is a fast-paced, first-person shooter game where you play the role of the last man standing in a battle arena. You will have to survive the arena, which will be full of other players, in order to be the last man standing. The game will be played in multiplayer mode, where you can play either with other players or against them. 

You will have to use your skills to defeat them. You will have to use different weapons, such as rifles, machine guns, and other weapons.