Rip zombie is a fairly new game game available on both the app and play store. It is a zombie shooting game with a puzzle twist. Its actually a very entertaining game and has a great soundtrack which makes the game even more enjoyable to play. The learning curve to this game takes about a minute, but after you get the hang of it you will start to put some serious game play into it. Its not the easiest game either and can become quite a challenge after about the third mission.
Theirs 260 missions in rip zombie which is pretty insane. You would really have to play this game for quite along time to complete all of them. It has a post apocalyptic theme to it which works very well, and there are 27 different zombie characters you will have to fight. As as weapons there will be about 20 different weapons you can choose from all which are really fun to use. After putting some game play into rip zombie I would have to say I highly recommend giving it a download, and best of all its a free app available on both android and ios.