I’ve been playing through Christmas NiGHTS again, on the MiSTer this time, to unlock Sonic into Dreams after playing the NiGHTS pedestrian patch. Winter is when I really get back into Sonic 3D Blast and Sonic R specifically, and Saturn stuff in general. Just unlocked Metal in R.
The Sonic 3 Movie DLC for Shadow Generations was pretty fun, though I kinda wish the Shadow movie skin could be unlocked for the rest of the game. His movie design is by far the cutest look for him, I think. My answer to @Persona’s question on new music is: I don’t think I remember any of it outside of the remixed Space Colony and Sunset Heights act 1, which are pretty good, and the pleasant gallery music. Not overly fond of the Whitespace music. I’ve mostly been falling back on:
Space Port
Sky Troops
White Acropolis
And a few others for further runs in the game.