Just grabbed this and I'm having a lot of fun with it! I'm not sure flip notes really work as a gimmick, though... they require recalibrating how the controls work on a moment's notice and it feels kinda unintuitive a lot. Maybe if the color of the player dot changed based on whether you were flipped or not it'd feel a bit better? It kinda feels like this game would work well with something like Wacca-style slide notes.