I liked the pixel art and sound effects! Heres some feedback I have:
-I didnt understand what the yellow circle things were
-I saw that there was a scaling mechanic, but I didnt know how to use it
-I found the shadow move with right mouse really cool! Although I came across it by accidentally pressing right mouse, maybe there could be a controls panel to show you what your character can do
Thats just some suggestions I have but well done on completing the game :)