Level 5 is the one I can't get past. I know there's a tutorial somewhere. There's a video for everything nowadays of course! I love the music too. I won't waste time describing how to beat every level. It would take up too much of a review.
I love how your games are challenging, yet look simplistic. It shows how well you can work with minimalism. I finally understand the whole gameplay! Well, that was after reading the author comments. I like to figure it out more on my own.