I like your twist on Undertale-style combat, the parry mechanic that risks damage to speed up the fights is a really cool and fitting addition! The variety of bullet patterns add some fun depth. I like the art, scenes for winning would give players something to work towards, but I'm guessing those were planned. The music and sound effects are very fitting for the arcade-like gameplay. The setup almost feels complete, I hope you'll return to this game after the jam to add that last bit of polish and spice!