5 great iOS catapult games, without the birds
I lean toward simple, puzzle-based challenges that grow in complexity with each level when it comes to iPhone gaming. Angry Birds not only fits that category; it defines it. But if you're looking for a catapult-style game without the birds, we've got you covered.
Source: http://gigaom.com/apple/5-great-ios-catapult-games-without-the-birds/