While I don't play a lot of games I've always been a fan of sniper games. Even when playing Call of Duty on Xbox I get really excited when a sniper mission comes up. There's just something about taking your time and getting the shot at just the right moment that pleases me more than running around shooting at anything that moves. Contract Killer as the name implies puts you right in the middle of a situation where you're a hired killer to take out the bad guys. Each mission has an objective and primary target. There are civilians walking around so you have to be patient and wait for the target to appear. In most cases the target is not standing still and nor will the target be on screen for a very long time. You have to take the shot and make it count. If you miss you'll most likely end up in a gun fight with multiple bad guys shooting at you and you've only got so much ammo.
Good game play on iPhone and iPad
I started playing this on my iPhone 4, but then tried it as a universal App on my iPad too. I like playing it on both devices. Once you identify the target you can zoom in (raise the scope), aim and take the shot. Headshots get you more points, but a kill is a kill. While there is always a primary target, you can also get more points by quickly taking out the other bad guys on the scene before your time runs out. The game is free and you rack up money by completing the contracts. Like most of the games in this category you can use that money to buy more ammo, better weapons, etc. If you don't want to wait, you can use real money and In App purchases to buy what you need.