A free program for Android, by RuNix Games.

Justice Rivals 2 – Cops and Ro is a free mobile game for Android devices and tablets that lets you experience a first-person shooter (FPS) game in 3D action. You can either play as a cop or a robber. Each team has its own objective to win so brace yourself.

There are two different modes to play. The first one is single-player, and the other one with multiplayer where you can play with your friends online through Co-operative and Team Deathmatch.

The app has a lot of maps to explore and you can choose between weapons as much as you want.