Touch Arcade: Curiosity: What’s Inside the Cube? [Free] is crowd-sourced pixel-poking. The app presents you with a gigantic cube. Think of it as a birthday gift: a cube comprised of layers and layers of smaller cubes. You kerplode the cubes by simply touching them. At the center of the cube is a secret, and there’s no telling how many licks it’ll take the world to get to its chewy, mysterious center.