First, there's the scrapped style. (Seen on the left)

It was scrapped because I wasn't happy with it, also the art on the right was much nicer.

Tails was much brighter when I first drew him, but the palette didn't look right in-game, so I changed it.

SSCN was originally going to have a "Deedee" type character.

He was called Prizehog. He's a cheery little guy (not really it's part of his job)

He was scrapped because I didn't want any characters to be locked behind rng.

There were a few SPS characters scrapped too. I didn't want to have unofficial characters in the main roster, so I scrapped them.

Also I would've had to redesign them and that's not what I'm trying to do.

There were a few skins scrapped too, for various reasons.

That's about it.

Enjoy the rest of your day!