This is easily the coolest game and mechanic I've played from this jam so far - I can't believe this seems to have never been thought of before as a puzzle mechanic. I could easily see this being a full game, and there being so much opportunity to expand the capabilities - maybe you can manipulate the firefly into something that shoots it off some distance, or parkour through a challenge falling through your lock, etc. I would love to see more. Your graphics, sounds, presentation all come together very well too. Nicely done!