After completing all available story and mashing buttons to the rhytmn of the game i have a maybe unpopular opinion.
I love ALL stages, but hemlock? He has the best song, the best rhytmn to fight to, the best banter, the best one liner in the form of his "bass drop" boss fight start AND is the ONLY boss whos death is an actual part of the song that keeps the rhytmn and score going and not just a cutscene.
I started the game against him and my expectations were dropping each time i managed to beat a boss only to see it be a cutscene that interrupts the song flow.
I hope the future bosses imolement this and are not just a cutscene.