Another returning move For Amy Rose Amy Flash.

Yoshi and Birdo cosplaying as Ichigo Momomiya

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

That Hover Move.

It's like the OG game but less stiff.

Despite being Water (Or Mutated Chao) slime sounds

(Advance 1) Angel Island Zone.

Originally for Infinite Battle Now retooled

Akin to MUGENhunter's Tails

Basically

Valgallah's Cream's "Chao Force" Super

Command is

D,DF,F X+Y

A returning move from Infinite Battle

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

(coming some time soon or something.) The 1st Sonic Battle Redux arcade Run: Sonic.