I completed the game, had about 10 Throwing axes left to fight against the Demon Lord, which was probably a good thing, I did not do the maths but the Master Sword and the Healing Tome might or might not be enough, that's fine either way, either way would have its pros and cons. I like the perpetual renewal/neverending story ending (although I did not discarded the World ender before leaving so I'll never be sure whether there's another ending if you do).
The game has by far the best combat system of the games of the jams I played so far (I played about 3/4 of them), it reminded me of Helen's Mysterious Castle but it's likely not the only game with this single character CT-based system where managing CT and parrying is the key. That combined with very good resource management make it puzzlish the right way.
I mapped the parts I visited (I probably skipped about one half ot the dungeon), the quality of the fixed treasures is on point, these treasures are worth finding but not to the point where visiting every single tile to be sure you would not miss one is mandatory. Difficulty is on point too by the way, I think difficulty which does not increase but rather in a sense decreases (but never gets braindead) as you go further (with the Master Sword, among other things) is a good compromise to make for this sort of jam games with permadeath, it's satisfying to beat the game (and see all its content) while in the context there's a good chance someone who would die during the second part of the game won't try again.
Good job, one of the strongest entries for sure.