Inovative concept and I really like how it feels like someone just drawing in a class to pass the time xD. I like how you have to steal certain weapons to progress since some enemies can one shot you. A tree one shot me with a mace, lal.
I'd probably add a popup to indicate what the enemy will do next as their attack. That way as the player I can prepare and counter it.
Well done on your entry, its fun!