At its core, it seems like a really decent game. Very cool puzzle mechanics, neat variations, and solid level design that introduces the concepts one-by-one and ramps the difficulty up gradually. For me, though, it is just way too lacking in any sort of polish or pizazz: no music, no sounds, simple graphics, etc. Just feels very drab: not even the buttons on the menu pop or highlight! I think this game can be something really good, but needs some extra time in the oven to make it shiny and feel good to play.