Really nice!! A huge work of level design for a game jam, and lots of content! Adding codes and objectives to search for in the game was a great touch, and the little speech bubbles add life and fun!
I did find a way to lock the enemies AI and make things 100% easier : when an orc attacks, you can just quickly move to the side and attack them from there and they'll keep attacking in the same direction, letting you kill them without taking any damage. Makes fighting a matter of time rather than a sacrifice to make you pick or avoid a challenge, so it might break the feel of the game.
Otherwise, awesome work here!