Quintessential mobile FPS Modern Combat 4 is just $0.99 on Google Play
Modern Combat (MC) is an ongoing series of FPS games for Android and iOS, featuring some of the most influential representatives of the genre on mobile. Heavily borrowing from Call of Duty games, MC titles manage to implement a lot of what makes first-person shooters on the PC and consoles great, including online multiplayer, while scaling the experience down for smaller screens.
If you haven't played any of the MC games yet, or are tired of the latest free release — MC 5 — now would be a great time to freshen things up by jumping into one of the mobile staples of the genre. Just be warned, the online multiplayer is highly addictive!