Amazing game that keeps getting better :)
Two suggestions. 1) An upgrade to harpy speed or extra bombs being carried. I wish I could just bomb the map to zombies, but it's so slow when the priests keep healing whole boxes back to full health.
An upgrade to bone collector speed. At this point I ignore bone collectors and just wait for the end of map auto bone collect to happen. This game is on contantly at work, and I am eager to see where you go with it. :D
Level 39 has 2 solutions. The corner with the 1 "1" diagonal, 2 "1" side blocks, and the 1 "2" big row block. That corner can be solved with either a mine next to the diagonal and a mine between the 2 side blocks or a mine for each of the side blocks separately.
(9-13-19 Answer)
A mine for both side blocks.
I just finished up Level Two Puzzle Four to find that there was a cell of six blocks where the numbers were in pairs and could be interchanged. The problem of interchangable number pairings have come up several times now. This is the first Conceptis game I have had any problem with, and hope that they can find the time to go over the game find the errors in the different puzzles and fix them.