I love how simple the mechanic was. It almost felt like I was playing a weird spin on minesweeper, haha. The levels were great, and I think they really showed off the mechanic without overstaying their welcome. The music is especially the highlight, it is sooo relaxing and kept me from getting too frustrated. The only thing I would add is a undo button - I found myself accidentally clicking an arrow one too many times, and I had to restart completely.