X-Men vs. Street Fighter on PS1 gets a full 2-on-2 tag team hack

ROM hacker pepasjc has released version 1.0 of the X-Men vs. Street Fighter Tag Team Hack, restoring full 2-on-2 tag-team gameplay to Capcom's compromised 1998 PlayStation port. The patch loads all four fighters into the console's stock 2MB of main RAM at once, eliminating mid-fight disc access and bringing back live character switching after 28 years.

When X-Men vs. Street Fighter hit arcades on Capcom's CP System II hardware in September 1996, its 2-on-2 tag mechanic became the foundation for the entire Marvel vs. Capcom series. Bringing that chaos to 32-bit consoles exposed a sharp hardware divide. Sega's 1997 Japanese Saturn port bundled a 4MB RAM expansion cartridge to hold all four sprite sets in memory at once, whereas Sony's console was stuck with 2MB of main RAM and 1MB of VRAM. Capcom stripped tag battles out of the PlayStation release entirely, turning it into a standard one-on-one fighter where partners only dropped in for brief assist supers (unless both players picked identical teams in a hidden mirror-match mode, which wasn't much of a consolation prize).

Four fighters in two megabytes

The new hack rewrites how the PlayStation version manages memory so a completely unmodified console can run single-round team matches just like the arcade original. Players can swap characters at any moment, incoming partners jump in with an attack and their full moveset, and knocked-out fighters are replaced by their teammates while their character theme kicks in.

All the underlying arcade rules carry over. Each side gets two life bars, and only the benched fighter recovers red health, meaning an early tag forfeits whatever recoverable life was left. Even the CPU tags on its own using Capcom's original arcade logic, and character switching works during the boss fight against Apocalypse. Seeing a stock PlayStation pull this off without pausing to spin the CD drive makes the 1998 retail disc look less like an impossible port and more like a tight deadline.

8MB support and restored CPS2 frames

For players who aren't running stock hardware, pepasjc built in optional 8MB RAM support for RAM-modded consoles, the MiSTer FPGA core, and emulators like DuckStation or SwanStation. If you supply a CPS2 arcade ROM set alongside the North American PlayStation disc image (SLUS-00627), the tool converts and restores missing animation frames that Capcom cut from 11 characters, the character select screen, and visual effects. That expanded image shortens loading times between fights, adds an arcade-frames toggle to the options menu, and still falls back to the standard 2MB tag hack if you boot it on an unmodified PlayStation.

Instead of a traditional IPS or xdelta file, the project uses an offline browser-based builder that patches your own BIN/CUE dump locally, with source code and a command-line version hosted on pepasjc's GitHub page. It arrives during a busy run for pepasjc, who spent the past two months releasing complete English translation patches for the PlayStation, Sega Saturn, and PC Engine CD versions of Hideo Kojima's Snatcher.

Capcom already gave the arcade original an official modern home in 2024's Marvel vs. Capcom Fighting Collection: Arcade Classics across PC, Switch, PlayStation 4, and later Xbox One. Nobody actually needs the PS1 port to play a decent match of X-Men vs. Street Fighter anymore.