Another Bug (i think its not intentional) but when i put a purple note in the 3 spot it every other measure it sounds weird and not like the other notes, even if u have different styles on if you understand what im saying
Edit: another bug I found and ik it is because i went into the room where its like:
<-Shop (down) Boss ->
Mini boss
And i went down to mini boss but after i cleared the room i realized that it was just normal enemies and no mini boss spawned so I didn't get a reward :(