The concept is ok, the actual performance is not: even though the tiles are clearly touching with their sides (at the start, nonetheless!), the game treats them as separate ones. Now go and work on it some more!
awful game - the player character does not shoot where I point with the mouse, does not shoot when I click with the mouse even though I have a super fast one with perfect settings
 "Basic Logic Fill-a-Pix Light Vol 1"){kind=icon}
 "Liquid Measure 2 Dark Fluid Level Pack"){kind=icon}
 "Smiley Squares"){kind=icon}
 "GunBlood"){kind=icon}