One of my favorite entries ! This is a very polished little game with great audiovisual presentation. I love the work you've put in here.
Gameplay wise, it's mostly very good. The bumping and auto-attacking works really well and fits the jam theme perfectly. The cursed sword was the first upgrade I found and I actually quite enjoyed one-shotting most enemies. Most upgrades were good. I will say that the wall jump felt off though.
I enjoyed the metroidvania structure and level design. It worked quite well. My only major criticism would be the going up to the final ability room and the combat in that room being overtuned.
Great job honestly !