OK, so this is a pretty good one!
The gameplay mechanics are simple and fun. Very intuitive, easy to play, hard to master. I like the level structures. They are made to learn the new things, instead of using tutorial texts. This is the way it supposed to be. Good level and game design that works without any annoying pop up messages. The game flow is nice, the difficulty curve is OK, but the first level with the lasers feel a little bit hard suddenly. But manageable.
Also it has one more issue, it moves on subpixel level, not really 64x64. Actually it doesn't really bothers me, because the gameplay is smooth, fun and challenging! And it has some addictive nature.