is the unique application utilizing "OctaveEngine Casual," which is a 2D-based multi-physics engine for casual games. This engine uses a particle-based physics model that has few restrictions. It can calculate almost any type of objects, not only solid materials, but also elastic body, plastic body, fluid, and gas. In the Free mode of the application, you can draw and create various shapes of objects and you can experience the ability of this engine. In the Puzzle mode, with exploiting the touch screen and accelerometer, you will challenge the puzzles designed by "OctaveEngine Casual " that you have never seen before. There are 5 categories, and each category has 10 puzzles.