Great game, I like this kind of gameplay. I got to level 15, apparently. A little improving would be to let the player see where were the bombs when he clicks on one (just a second or two) before restarting. And For the first levels, it would be easier to click on the "intruder(s)" boxes instead of all the other ones.
Same question as the others: Is it endless? Where does it end? Because The 2x2 level with 4 bombs must be quite a challenge XD.
