For a small game, it was good! The endless staircase style has a good amount of potential, and I feel like you could go farther with some extra scares and events!
I couldn't find your support email listed anywhere, so I've got some things I noticed;
- Character didn't fall fast enough to match movement. I ended up hitting my head on the ceiling as I went down the stairs. Some extra gravity on the character might be needed.
- Not being able to jump or walk over ledges meant that at certain points, I couldn't step over the piece of floor leading to the next staircase. (Had to use the floaty movement to get past it)
- Ending could be triggered a little faster, I was left wandering for a little at the end.
There's some good potential, so don't give up! Hopefully we'll be able to see more from ya!