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

I mostly plan on a few guest characters somewhere in the future.

Currently I have 2 Bomberman and Mario

I dont mind which should be choses for a first guest character. Heres a few sprites i plan to use for Bomberman.

Mario's just gonna be quite obvious.

The Classic Hop and Dive. (Amy Rose)

Akin to MUGENhunter's Tails

Another mechanic that I coded for the first time

"Grab Canceling"

The only thing that varies between character is: how long will they actually throw the opponent while Pressing Y + Holding FWD/Pressing Z + Holding Backwards will still do the cancel trick

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

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

That Hover Move.

It's like the OG game but less stiff.

Basically

Valgallah's Cream's "Chao Force" Super

Command is

D,DF,F X+Y

Despite being Water (Or Mutated Chao) slime sounds