Really nice experience, you can see there has been a lot of work into this!
First, the multiple enemies are really well thought and the combat mechanic while simple is really effective and the movements of the wolf satisfying.
The way you can use ectoplasma to improve your character’s abilities is a nice touch. I think it’s one of the part that kept me going.
The flaws I see are that it’s a bit too long. I expected some type of special super ghost as a final enemy but making me repeat the process three times is a bit frustrating. I think your enemies were really interesting and you could add one boss enemy with interesting attack patterns to replace your current boss sequence.
The fact that you can move forward with “Q” or “S” was a bit strange, maybe you can think of something that uses only the mouse for movement/attack/interaction? I feel like the keyboard is underused and not very important in your mechanics. It is way more satisfying and technical for the player to aim and move with the mouse.
In the end, it’s an excellent game, congrats! :)