So many great references - Spike from Wrecking Crew, the enemies, Glass Joe photo in the diner, the music, the caged (and depressed to the point of nihilism and wanting to die - wow) Luma, Rainbow Road...phew. Fantastic!
This is the third time a wedding plot's been used, after Super Paper Mario and Super Mario Odyssey (unless I'm forgetting something), and the wedding outfits were straight outta Odyssey too.
Pauline was seen in the beginning, too - wouldn't that make Brooklyn essentially New Donk City...?