Very good art and music, incredibly polished and aesthetically pleasing! The game also fits fairly well with the theme of the jam. The game reminds me of crypt of the necrodancer without the timed movement in the gameplay. A main criticism I had with the game was due to the random nature of the room generation sometimes it would be a very intense "literally no good option" generation and I was trapped, and another time I only got a few enemies and it wasn't very challenging. In the boss fight I got an ability which I had never seen before (burning tail) that I didn't know what it did and died multiple times because of lack of knowledge/introduction.
Also after all this time I still don't know what is esoteric prime number hell :P