I think a gimmick is bashing Sunshine! Take that
I never said the game was bad. It had some very inspired moments and hilarious, if very cheesy, cutscenes.
It just didn't feel like the advancement people expected.
Like I've said before what happened with the NES Marios is happening with the 3D Marios...
Mario 64 was groundbreaking and created a foundation for what's to come, Mario Sunshine was a fun sequel with memorable moments but didn't astound anyone and Galaxy blew both games away with an amazing presentation and refined elements.
Super Mario Bros.=Mario 64
Super Mario Bros. 2=Mario Sunshine
Super Mario Bros. 3=Mario Galaxy