Mkay. I finished Chapter 8! It's kinda anti-climactic, but it gets better when you get to the postgame. You play as Mario and Luigi, 50 years older, in a peaceful future of the Mushroom Kingdom, where you can meet all their old friends, AND go to Subcon with a special code to be included in future updates of Paper Mario Pocket 1! The future of the kingdom changes considerably in the postgame, so just because there's not many battles doesn't mean it's not as fun.
BTW, I decided on the song for the Bub-Ulbs mating dance: Walking on Sunshine. Perfect, right? I heard it on the radio, and realize that it fit perfectly.