A fantastic remake of an old online flash game, gun brick is a killer iOS puzzle platformer.
Gun brick makes you think, something that can't be said for most games on the App Store. It's diverse environments, and constant barrage of new mechanics makes it one of the best titles I have ever played.
While the gameplay is challenging, the controls are easy, intuitive, and quick to grasp, which is essential in a game where one false move sets you back to the beginning of a multi-stage puzzle.
Some people may complain about difficulty, but really the challenge makes you step away for a while and think about how to solve the task at hand.
My only complaint, if any, is the length. With 3 quick worlds, I burned through the game in under a few days with heavy play. More levels are on the way though thankfully.
Oh and it's gorgeous too, so you should stop reading reviews and just spend the money, you'll like it.