Damn, it seems like I've been playing a lot of challenging games lately. I was really impressed at just how hard this was. You could die dozens of times on one level. In fact, it reached a point where that was the ONLY thing I could do. The music is quite nice.
It's weird to have a game that's both hard and addictive. Of course, maybe one causes another. Your design seems familiar. Everyone should have a hard time with this. It probably works best as a puzzle game. You really have to figure out just what to do.