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.

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

Despite being Water (Or Mutated Chao) slime sounds

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

The "Big Green Man" (Guest) teaser.

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

Akin to MUGENhunter's Tails

(Advance 1) Angel Island Zone.

Originally for Infinite Battle Now retooled

Another returning move For Amy Rose Amy Flash.