Early previews of "Shining Wine (Not alcohol)" and "Castle Party"

surprising how i manage to draw King K. Rool accurately like that for the first time

The "Big Green Man" (Guest) teaser.

The Classic Hop and Dive. (Amy Rose)

(Advance 1) Angel Island Zone.

Originally for Infinite Battle Now retooled

2/3 of them are references to

Sonic's Concept and is also a Skin in Sonic Superstars Cream's Debut (Though inconsistent looks)

A former 90s rival's (A red capped plumber guy) recent 3D platformer since 2017

A returning move from Infinite Battle

but a bit more on Sonic 06's Green Gem.

I'm taking you down like its 1998/1999!

Act Music as Rounds? (may not apply to every stage)

Yoshi and Birdo cosplaying as Ichigo Momomiya