Woah, congratulations on the entry! You have done really amazing job. I enjoyed the game and thank you for putting me in the game aaaaaand the encouragement to subscribe to my channel! On the more concrete side of the feedback:
It's pretty hard to aim with bow and spears. If I play with mouse (at least to hit) I would expect the aiming to be done via mouse too.
The boar boss was first but was the most difficult. For all of the rest the simplest tactics was to stay as close to them as possible and smash them with sword.
What are your plans for the game? Are you going to extend the project or is it 'jam only' thing? :)