This is another 5/5 candidate to me. The experience is fluent. The looks are good, without unintended glitches. And it is a twits on that game about switching adjacent squares on and off. As all the games I rate 5/5, I do it thinking that this is a game I would like to find pre installed in a GNU/Linux distro.
It also includes an quick tutorial, and can be included in the category of games that are "easy to get, hard to master". Perfect!