i think the bosses when killed should drop an item that have their charcterists or abilty (idea based off snowman of rage) but unlike snowman of rage you shouldnt have 23 or something snowballs, just a one time ability. it shouldnt be something to op just to help out a bit or if this will make the game too easy have a small percent items of these bosses will drop, i'll start off with a suggestion, that one girl boss that can duplicate, she can drop a mirror image item that lasts 10 secons or something like that (the mirror image isnt perfect idea its just to help with the think proccess and what i mean by this topic)
-also fix the snowman item that u have 23 snow balls i think its a bit too much