I saw the demo from start to finish, and i can tell, this game is a master piece, all the songs are very well made, in the future with new stages, bosses, harder modifiers, new mechanics, this game will be popular, if not this game will still be a master piece, i can't express how much this game made me feel, is not only about the art style being good, how the characters are very well made, (and not only walk to them and sex happens),is also about the challenge of some songs/modifiers, and also the self challenge, some times you will find that song that is hard as hell to pass (like the demonic girl to me) and some times you will fail in some songs for some long time untill you get that 100%. still this game is a master piece in both content and gameplay
Keep on this path and don't let anyone tell you otherwise, do the tinghs you like, add the things you think will improve the game, but never force yourself to do semething you don't like
( if i wrote something wrong le tme know, im not native english,also idk what happen in the midle os my text to have that cut in the middle)