Locking moves behind a rhythm game feels really irritating in a game about shooting enemies with magic attacks, platforming and porn...I already have to pay for the move up-front, just fucking give me the thing I grinded for, id understand if it was free and just a frustrating minigame.
Unless there is a bypass for that annoying nonsense, I guess I don't get any bonus moves, might try to just hook CE in and slow the game down when he speeds it up, but its early, and I'm easily frustrated right now, and doing a tedious rhythm game with cold hands is not a recipe for happiness.
(No idea about the connect-4 board game, if there is content locked behind that, then I don't like that either, but I don't think I have to pay anything for that, so its less of an annoyance, more of a side-objective that...I wont likely bother doing legitimately, I didn't sign up for a game of monopoly, I wanted to play a side-scrolling metroidvania with cute girls.)