Great idea, very original, really fun concept. I found it very hard on the beginning, at the third level things started to ease up but still very complicated. But the commands are responsive and it's cool that the controls cracks your head more than the puzzles, maybe it wasn't intentional but I liked(just like games with really bad controls but funny ex: surgeon simulator). I liked, leaved a good rating but my game bugged at the third level, the sprite of the line started to show every tile.
Pls if you want, check it my game and leave it a rating too!