This game is really charming - the pixel art is adorable, and I enjoyed the story of the detective kids trying to figure out what happened to their uncle.
I can also understand why some of the puzzles ended up being a bit too difficult. Playtesting and balancing puzzle games is tough, especially with limited time. I've run into the same issue with my own game, where players sometimes get stuck because they don't know what to do next.
Overall, I had a good time playing it and really liked the game!