Final Fight - 30th Anniversary Edition © 2019 Arcade Atavism.
Pirate hack that adds:
* Three Players mode.
* Selectable Palettes.
* Unlocked Character Selection.
* More Health for Enemies/Bosses with three players.
* Uncensored Intro / No Region Warning.
Released in December 2019. It took 10 months of development. They used reverse engineering.