I've expressed the awful taste left in my mouth before by Sunshine. It really was Mario 64 lite with better graphics, same exact to a f'n tee missions on most levels, too much childish scavenger hunting, not enough platforming, the water pack has caused a racoon to roll over in his grave, it didn't take place in the Mushroom Kingdom?

?what are they smoking???, yoshi was useless, it had a plane in it, they didn't correct the mistakes of Mario 64 like bring back the traditional powerups and expand upon that (instead they just ignored them completly because they were afraid people would call it kiddy for not being 'realistic' enough), still no Luigi, no themed enviroments (Mario established the themed levels in videogames taking a cue from the classic old english tale Beowulf whose themes included man vs the elements which is expressed in the story by the dragon who lives in the earth, flies in the air, breaths fire, and dies in water), Mario finally crossed the line and did get kiddy, Bowser was way way way way too easy, Mario's gigly school girl expressions defamed the character, and it was marketed badly.
I forgave Mario 64 for not being close enough to the old 2d Mario Bros games. It didnt have Luigi or a playable Yoshi. It dumped the powerups they had used for over ten years in the games. There was too much collecting useless items. But it was an orginal Mario title and it was the first real 3d game and it was a quality 3d game technically. But since Mario 64 established the technical qualifications for camera control, analog control, jumping in 3d, and other standards shouldn't Mario now be worried about being less of a 3d game and more of a Mario game that happens to be in 3d. Maybe the solution is for the series to go back to the 2d but that could look bad for Nintendo to back away from 3d which they are credited for creating. I don't think it has to go back to 2d, but I wouldn't mind.
Paper Mario is awesome. It brings back old themes and characters. The graphics are great. I'm not a fan of it getting gimicky with the paper thing (paper airplane?). They think it is cute to make fun of the game in the game but it is just distracting, though I appreciate their ability to laugh at themselves. I can't wait to play it. While the 3d games have lost track of their roots Paper Mario takes full advantage of its past.