Excelent game, it's a short experience but very well made. Visuals and sounds are really amazing, I liked the pixel arts and handdrawn arts a lot, one of the most pretty games in the jam, btw. Moveset of the bosses are enoughly cool, about the player I would suggest a better impact on his attacks and a better jump control (like in Super Mario, if you just press, the character will jump a little bit. If you long press, the character will jump higher), that would offer a more precise controls to the player. Other than that, with some polish your game has a huge potential to a complete experience in a post-jam work, congrats for your game!