Thank you so much @maoyinchuan!! I've now purchased the full game on Steam, I'm so happy I can play these wonderful games again (as well as financially support the developer)!
Beautiful design and super-smooth gameplay. I echo the many other comments here that it feels like a complete game to me, just needs more levels!! :D I loved the trick to the last level, I had to shove the light cubes around a bit before figuring it out. :)
Great game, wonderful graphics, very well made and interesting to play without being too hard. My only gripes are that it should have been longer, and the ending was a big let-down.