So, i understand that the jumping in this game is momentum based and not movement based but the awkward placement of platforming doesn't help.
With that said, loved the idea of it. The open hole reminded me of the hole from Silent Hill 2. And the overall visual presentation reminded me of the game Mappy for the original Famicom/Nintendo Entertainment System.
There is potential in this demo that is waiting for a better re-release to actually utilize that and become something good.