Some mentioned that Gonzo was not in the Rainbow Connection finale. I had not noticed Gonzo's absense there. But while Gonzo was shown still moving his arm in a circle with his bowling ball stuck to his finger, and during the credits it was shown finally coming off. But between those scenes Gonzo was shown without the bowling ball, like in the "Life's a Happy Song" finale (and I'm pretty sure he didn't have it during Kermit's speech or when the Muppets saw all their fans... Though I can't remember for sure if Gonzo was on-screen at those times). I wonder if Gonzo throwing the ball at Tex's head was supposed to come before the finale (though that's supposedly what made him give the Muppets their theater and name back, if he had a change of heart then Richman's "Will you stop that singing? You've already sung that song!" line wouldn't have made since there).
I feel that, if his finger was stuck in the ball, it might have been funnier if the ball was so heavy that when Gonzo through the ball he flew along with it. Or if throwing a bowling ball stuck to his finger caused his arm to stretch out like in the John Cleese episode.
Gonzo is seen in the finale right before Scooter and Fozzie sing their lines. I feel Gonzo should have sang Gary's line that came before Scooter's, since Gary had two lines (ironically, I first heard the full song before seeing the movie, and thought that Gary's first line, "everything is perfect", sounded like it was being sung by Gonzo).
Other major characters seemed to "just be there" like Gonzo. In the finished cut Bunsen only got one line (he had a few more lines in the deleted scenes, and he is heard talking at the beginning when a clip from an existing sketch is shown), with Beaker being more featured. And while the use of The Electric Mayhem is an improvement over the last two decades, aside from Animal and Floyd they also seemed "just to be there". Janice only got two brief lines (one heard over several other characters talking upon learning they were in danger of also losing their names), Dr. Teeth got four lines (one of which also being heard over other characters talking), Zoot didn't get any dialogue at all, and of course Lips didn't speak either. Despite that, as I said previously, it's still an improvement over the last two decades.
I sort of wonder if it would have been a worthy risk to make this a two-part movie (in the end the movie did well enough that a part 2 would have been made, but if it didn't we'd be left without a conclusion) like the recent Twillight or the last two Back to the Future films (which were a continuation of the first which wasn't intended to continue). Part 1 could have focused on getting all the Muppets together, allowing longer visits with characters as opposed to a "time-saving montage" (it would have been funny if, after getting all the neccessary characters, Walter begged them to pick up the more obscure characters), and then part 2 focused on the telethon (putting in more acts like Pigs in Space).