Creators of Super Smash Flash Making an Official Indie Crossover

Fraymakers looks to be the most ambitious indie crossover fighting game yet, with a successful Kickstarter campaign that is still ongoing.
Successfully funded on Kickstarter!

Mascot Fighter - TV Tropes

Why Smash Fans Should Be Excited for Fraymakers

Indie showcase: Super Mario Bros. Crossover < NAG

You're in charge of the roster for the next Super Smash Bros. characters from any company/franchise may be used. Who would be added and who would be removed? - Quora

Creators of Super Smash Flash Making an Official Indie Crossover Fighting Game

My Smash Wishlist by SonicPal on DeviantArt

So, Who's Next For Super Smash Bros. Ultimate? - Feature

Video Games / Massive Multiplayer Crossover - TV Tropes

A Brief History of Smash Brothers, by Funké Joseph, Play Underground!

The Super Flat Design of Michiko Sakurai, by David R. Howard

JOLLY J✨ on X: @MTLSaiyan How about a 2D Style / Smash Bros Styled Crossover Fighting game FOR INDIE CHARACTERS! I'm talking Cuphead, Shantae, Meat Boy, Steve, Sans, Celeste ETC going head