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

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

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

The Classic Hop and Dive. (Amy Rose)

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

That Hover Move.

It's like the OG game but less stiff.

(Not finalized yet but its a resemblance.) I have decided to make it 3 Buttoned. Though the Basic attacks mapped A,B and C buttons will also be mapped to X,Y and Z

Continue. But classic

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

Another returning move For Amy Rose Amy Flash.