I had to complete the game before commenting because it's probably my very favourite game in the jam.
I loved the combat system, Xp spending, the item roster, the maze and this central eye enemy, that you might miss an item if you're not paying attention.
Furthermore that the UI, gfx, sounds, settings and highly detailed and at least a bit interactive environment are all high points sure is an extra bonus, the game is very detailed and polished on top of being very fun.
Finally I would have said I thought the balance was very good at first, I'm not completely certain anymore, some parts may be both a bit hard if you don't abuse healing at all and easy if you do, but that's really just a detail, I had ton of fun with the game and think it's excellent.