Congrats on submitting something for the jam. Your game seems quite large, and it was fun running around in it. At times if you stand close to the enemy you don't even see them attack, so don't notice you hp going, as there is no sound/visual clue. Maybe an attack frame, or damage shown would help.
Also running diagonal is too fast, as it shouldn't be a combination of your h and v speeds. It's more like 1.4x, maybe try looking into it.
All up though, good effort guys.