I like the game idea a lot. And the implementation is really cool - feels addictive.

There are a few minor issues:

- when the ranking puzzle is complete, I'd like to move immediately to the next puzzle. Now we have to go through the main menu once again - which breaks the immersion to some extent.

- maybe our winning solution could be saved so that we could try to improve it. Otherwise it's quite difficult to recreate it from the scratch. Some puzzle games I've played in the past offer exactly that.

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Also, this game suffers from a common Unity engine problem to overheat and shut the laptop down (Windows 7 64-bit, Core i7-3610QM). Even though it works fine on an older laptop.

The reason behind I believe is that Unity engine does not respect my Windows setting to use only 80% of CPU. Tries to run it at full maximum speed + turbo boost. Because that very same i7 laptop can handle very powerful games without any problem (e.g. Max Payne 3).

Maybe Unity settings in Shift could be tweaked to solve this massive overheating.

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Overall, thanks for the game! :)