Awesome job on the tech! I like the roguelite/roguelike interpretation of building. Allowing fully tweaking your build before going to fight a boss is a pretty good idea for the scope of a gamejam game, though I'll admit it is a little front-loaded in that regard (though that's just how most gamejam games go anyhow lol).
Also, I really liked the detail of changing the hands' animations depending on ability. :) Very, very cool.
Edit: also, good job on the audio!