It takes a unique game to unseat Angry Birds from its roost at the top of the sales chart — and The Heist certainly qualifies in that regard. While most games — especially puzzle games — gently ease players into the game and take a long time to ramp up difficulty, this app offers no instructions and hits you with some hard puzzles pretty quickly. After you start the app, a “call” (actually a pre-recorded element of the game) on your idevice explains that you’re there to assist breaking into the imposing vault on the screen. From there, you’ll have to figure out what the goal of each puzzle is and how to achieve it. It’s not a game for the light-hearted, but it is a lot of fun and will test your puzzle-solving skills.

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