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StoneLoops' game play is simple. Stones with different colors appear from one side of the iPhone screen and goes through a looping path or (sometimes two overlapping paths). At the end of the path is a dragon's head waiting to devour the stones. When one stone reaches the dragon's head, the dragon's head will swallow all the stones that are currently running on the paths, as well. So your objective is to prevent the stones from reaching the end of the path. You do this by firing the stone launcher towards two or more stones of the same color. The stone you are launching must be of the same color as the stones you are hitting to destroy them. Destroying more stones of the same color gives you higher score.
So, what do you get from finishing a level in the game? Aside from the points that you accumulate, the game also gives you a house that you can build from the ground up by adding various parts into it given to you as a reward. There's nothing really special about these houses, just some form of eye candy and serve as a break from the rigorous levels that you have to beat all throughout the game.
The game also gives you several bonus levels after finishing three to four games in a row. The bonus levels task you to hit stones containing gems by hitting three matching stones first. The bonus level serves as another break in the game that you should take advantage of to gain power-ups. You can then use these power-ups in the succeeding game levels.