I bought Crypt of the Necrodancer a couple of days ago when it was on sale, and am having a grand old time with it. I cracked open the game files and discovered that all the entities are just PNG sprite sheets, so it's super easy to mod the visuals. Boobs ensued.   Attached is my modified entities folder with the edited sprites I've made. Some are very similar to the original in-game artwork; others are almost entirely redone. They mostly give the game objects large breasts, like these: