As a prototype, I was surprised by the challenge and actually found it a bit enjoyable. I know how much reviews are valued, or at least how much I would want them once I finish my own prototype, so thought I would leave a comment about my experience with some feedback.
-Sometimes creatures jumped out of bounds or could get stuck behind an object for a while, specifically the wolves.
-Minor, but the rock/flower patterns that were walls weren't always clear they were walls. I wonder if they could be designed differently to be clearer to be obstacles.
-If you feel ambitious, it might be neat to do a simple character creation, where the hero can be customized. This would depend on how much the pixel art is yours rather than assets, I imagine.
-A difficulty slider might be a nice touch for those who may not enjoy the sometimes challenging experience that is offered. I died several times, and while I had fun, a customizable difficulty might cater to more tastes.
I hope this feedback was helpful!