Dangit.
Also, i know Platform Fighters aren't really your cup of tea, but i would like to suggest you what i think is one of the most unique ones: CodeName Prodigy: https://store.steampowered.com/app/1608310/Codename_Prodigy/
This game is NUTS.
Every character has a crazy gimmick like having specials that only deal knockback or having an install that doubles all damage you get dealt, but that also lets you return all the damage you received in this state in a single attack.
But sadly, outside of tutorials and an unfinished target smash mode (As of rn only 1 level is available) it has no single player content, at all. It has online though!