Pretty cool game, pretty polished, for the most part. in the web version, at least for me, level 3 was unbeatable, as the cube that protected the snake didn't work for some reason, had to download the game to make it work. Also, it would be better if the blocks that can be moved had a different sprite, as know it is a bit confusing sometimes which, concrete blocks are movable.
I couldn't get pass level 14, I just don't know what you are supposed to do.
Overall pretty cool puzzle game. good potential