I wanted to like this game but I couldn't. Between the annoying bug chirping background music and the irritating way of not telling me things I couldn't take it. You failed to explain that the apparent bridge platforms can be passed through from above, and left me guessing as to why you included the green flashing blocks until all the way to level 19. From my point of view you simply should have made every green block solid gray up to that point, as the only difference was that the green ones irritated me and made me wonder if I was missing some information. The lack of music bugged me for some reason, most likely because I don't enjoy bug noises while I try and think. Something to think about, though maybe you just caught me on a bad day.