Just finished playing this and I had fun! At first it felt weird that you can't jump high but when you stomp on enemies you jump a lot higher but I figured out that it's intentional when I replayed the level. The style you're going for is really nice, for both graphics and music choices, and I'm a fan of that little plot haha.
I hope to see more of the hack in the future, it was enjoyable even though there was only one level!
This was fun to play but I couple things I noticed which could be a little better is if you gave a couple extra pixels on jump height so you can clear some of the obstacles that look like you should be able to clear without issue
And second is it possible to make the wall jump able to jump on the first frame instead of having to wait a second before you can jump off? You get the wall cling animation on the first frame but wall jumping doesn't work right away.
OMG! That's really amazing hack. Though at first I had a lot of problems with wall jumping. At first long climb I felt like 50 times. It's not the easiest thing in the universe. So for first playthrough I used savestates. Shadow World was tough. But the second savestateless playthrough I did on my first try and it gave me a lot of satisfaction.
I was replaying this level few times. For fun I did 2 runs with key back to door the same way I found the key in both directions. Both ways are possible. Also is it just me or throwed objects fly higher in this hack? You can only get stuck by throwing key on the wall on the left. But who would do that?
I love graphic. The only thing that I didn't like is that moon look very similar to dragon coins. I think changing color of the moon would help.
And out of curiosity, above very first bouncing ball enemy in the level in right wall near ceiling there is 1 tile hole. Is there any purpose for that?
I'm looking forward for more of your work in the future. Good luck.