When you need to make the couple dance, try to play good, but don't get to Angel Mode, or the whole town turning into Sadness, because it will be harder. Just make them dance, and then et into Angel Mode once you think there's barely any time left. Keep doing good in Angel Mode, and then you win. You'll see a scene where the man gives the woman a bouquet. If she's happy, you won.
Now, we go to the nervous clown dancing. I forget what seen you get after, but it's a good one. Just do this one good and fast, and stay in Angel Mode, since this is easier. If you get caught in Devil Mode, just play good!! ^ ^
Now, we are at Neo or what ever fashion show. The first scene looks like it's not going good. Just play good, not to fast, not to slow. Go into Angel Mode at about the middle of the song, so you have time if you go to Devil Mode.