I'm one of those logic whiz and I got 25/25 on the first try.
However, the interface wasn't the greatest and actually made it harder. Did it with pencil and paper.
interface brings down my rating substancially
39 gold without the walkthrough. I gave up on the last one and watched the walkthrough, and my ball doesn't go the same way in any of the 100 times i tried it.
Too easy.
The upgrade system isn't worth it.
The support towers say it boosts by 5 or so. 5 out of what? maybe an options menu where you can turn down the noise of all the turrets