Best Shooter Games for iPhone-DOOM Resurrection

If you like your shooters with no objective other than to eliminate anything that crosses your path, Overkill is for you. Armed with an AK-47, M4, SCAR, RPG and P90, you play the role of a mercenary, destroying things to earn a nice bounty for buying new weapons and upgrades. You can also choose to go head-to-head with other players online. This game can be downloaded from iTunes for free, which makes it even more attractive.