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.

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

Despite being Water (Or Mutated Chao) slime sounds

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

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

Akin to MUGENhunter's Tails

A returning move from Infinite Battle

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

Yoshi and Birdo cosplaying as Ichigo Momomiya

Continue. But classic

That Hover Move.

It's like the OG game but less stiff.