Finally, a hard game jam game! While I did defeat the boss, i do think it needs to telegraph its attacks better. You could try using sound effects to help differentiate the two attacks. On that note game feels a bit sparse in the sfx department. try using https://sfxr.me/ if you need sfx fast. Personally I mix my sound effects in https://jummbus.bitbucket.io/ but thats because I'm weird.
Annoyingly, there were some places where there would be an enemy on a small platform, your attacks don't knock you back enough to pogo on the enemies, but they knock you back enough to where you will fall and die. Then I noticed that enemies deal very little damage to where you really shouldn't worry about them. Lastly, the intro was waaay too much text without visuals.
Now that I got all the negative stuff out of the way, I have to say that the art was incredible and the movement mechanics really had charm to them. A lot of work goes into face portraits and hair physics, so I salute the person/s who worked on them! It was a nice change of pace to play a game that wasn't a cake walk.