Really great entry! I loved looping back to the first room after the double jump and really appreciated that the game auto detected my input and swapped icons!
I think the platforming is a bit difficult, I'd probably give the player more air control, but the working ledge grab made up for it. I'd give some juice and feedback to hitting enemies and boxes as well. A little hit pause or making them flash when hit. Can't wait to see more from ya'll!