I finished the game with only 5 boxes :P I don't know if that was a bug or not, but I still died in the end. I wonder what's the least possible amount of boxes you can use to reach the end.
I love how all of your games (especially this one) are engaging with a really impacting feeling after playing. I also enjoy how this game is challenging, but still beatable with a bit of determination.
We need more game creators like you. Thank you for making this game.