About
Mighty Final Fight Forever is a freeware, fan-made remake and expansion of Capcom's 1993 NES game *Mighty Final Fight*, built on the open-source OpenBOR beat 'em up engine. It greatly enlarges the original spinoff of Capcom's Final Fight series, returning the trio of Haggar, Cody and Guy with redesigned chibi-style sprites and expanded movesets across both remade and brand-new stages.
The v1.00 release arrived in December 2025 as a non-profit passion project distributed free of charge. As an unlicensed fan work based on Capcom's intellectual property, it has no commercial release and could be withdrawn at the rightsholder's request.
Identity
Launch
- Binary
- PLAY Mighty Final Fight Forever.exe
- Needs files
-
- Paks/MFF4ever.pak
Proton
- Version
- proton_experimental
- Winetricks
- —
⚙ Setup notes
Engine: OpenBOR beat 'em up — a freeware fan remake of Capcom's 1993 Mighty Final Fight (Bouncer Games, v1.00, Dec 2025).
Confirmed OpenBOR: the v1.00 release ships a Windows OpenBOR engine exe (PLAY Mighty Final Fight Forever.exe) beside a Paks/MFF4ever.pak (~485 MB) plus Saves/ and ScreenShots/.
Proton: the default path is Proton.
Native alternative: the lighter option is a native-Linux OpenBOR engine (Flatpak/AppImage) loading the same MFF4ever.pak — no Proton needed.
Display/Deck: set the game folder permissions to read-write in Desktop Mode to avoid OpenBOR freezing on the Deck.
Install: get it from the developer's official page, linked below.
The one thing to know
Supply your own copy: freeware fan game; get it only from the developer's official source linked above.
Needs-test: structure verified (OpenBOR engine, real exe name, Paks/MFF4ever.pak present) from the v1.00 release, but not yet launched on a Deck.
Native alternative: native-Linux OpenBOR with the PAK avoids Proton entirely.
Legal: as an unlicensed fan game built on Capcom's Final Fight, it could be pulled at the rightsholder's request — deckport only describes how to configure it, and links the creator's own free release.
Community guides
Write-ups and threads from people who got this (or a similar) game running. deckport links to them — it doesn't reproduce them.
Get the artwork
deckport never hosts game images. Open this game on SteamGridDB, pick
the cover / hero / logo / icon you like, and drop them into the
game folder under .deckport-art/ before you push it to the
Deck. The importer files them under the right names automatically.
Run it on your Deck
Two files: the one-time importer (deckport.py) in your
Deck's home folder, and this game's install helper. Copy the game
into ~/Games and run the helper with Steam closed — it
writes the recipe (binary, launch options, Proton version)
and registers the shortcut with artwork.