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

(Silver Update)

Another Trap attack + A returning move from Infinite Battle + And another intro

Giving the character's Icons some polish.

(Will be in the next update)

So far. The Super Transformation is far from completion. (Super Sonic Sprites by "TheKnucklesMainG4")

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

Basically

Valgallah's Cream's "Chao Force" Super

Command is

D,DF,F X+Y

Sumin didnt just make some characters But also sandbag (Though bare bones)

(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

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

Despite being Water (Or Mutated Chao) slime sounds