Press M, that shows an old rat that gives you an option to become an archer, get more max hp, get a rare item, and lastly give you two uncommon items. Hope this helps!
But I do have one thing to say. Something nice would be a sort of level chart. To elaborate, I would like to see how much levels I have left until the boss. Also, this can be limited to how far you've personally gone in the game, as well as being a toggleable feature. Otherwise, you've made an amazing game that is puzzling yet fun.
