Hey thanks for taking the time to play and leave a detailed response! The current player art was supposed to be a placeholder until the real art/animations were ready. Unfortunately, though things came up and the real art didn't make it in on time. But we're hoping to make an update after the jam to add them in!
This was my first time creating a fighting game and creating a boss, so I appreciate the feedback and suggestions you had regarding the controls and bosses. That's something I'll work on and try to tweak when we release an updated version :)