this is such a fantastic idea for a game - and very well executed! the graphics are quite lovely, and the puzzles are quite challenging - I like that! it's not always obvious that the player has run out of fireflies because there's no audio cue and (more importantly) there doesn't seem to be a way to see how many fireflies are left once you've passed a certain point in the level. also, as the comment below mentions, some music would be a nice touch. but other than that, I was really impressed! 👍