Developer: Adam Preble
Price: $0.99 Download on the App Store
The typical spaceship game has you racing through space and blasting your enemies. Instead, Slingshot relies on one very important weapon: your mind.
The purpose of Slingshot is to launch missiles at the enemy and obliterate them before they get you. The catch is that one or more planets are between your ship and the enemy. In order to make a direct hit, it requires accounting for the gravity pull of the planets. If the missile's path projects too close to a planet, it will veer off and hit that instead of the enemy spaceship. You control this through two virtual scroll bars on either side of the screen: one controls the trajectory for the shot, the other controls the speed. The right combination of these can result in the perfect shot and taking out your opponent.
The gameplay in Slingshot is set up by having each opposing spaceship on the opposite side of the screen. Each is given a turn to shoot (apparently only true gentlemen who have learned to take turns can fight in the space era) After blasting your enemy, it is then on to another round, which has a different planet configuration. Slingshot gets more challenging as you get into deeper rounds, with more planets and strategic placement that will make you really think before firing off that missile. The arcade mode in Slingshot has 16 different levels to advance through. There is also a free play mode, which allows for anywhere from two to four players. Ships that are unlocked during arcade mode can be used here.
If you are the competitive type Slingshot has a system for posting scores online. Even if you end up in some dark cave or one of those, ahem, "rare" spots that AT&T does not offer coverage, the score can be saved and uploaded later when you regain a signal. Giraffe Lab, the company behind the Slingshot, also compiles a leaderboard on its web site. The leaderboard and multi-player is a nice touch that more iPhone/iPod Touch games could use.