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Cross Fever for XMvsSF — 1v1 Duo

A normal two-player X-Men vs. Street Fighter with MVC1-style Duo: QCB+HP+HK plays MVC1's start, the point's pose and then the partner flying in, and you control both fighters until the team's TIME gauge runs out, under MVC1's meteor sky with MVC1's ∞ on your level meter.

Latest v3 · Sep 24, 2026 · Preview

Latest · preview

Cross Fever for XMvsSF — 1v1 Duo v3 · Sep 24, 2026

Windows one-file installer: drag your stock X-Men vs. Street Fighter Euro 961004 (xmvsf.zip) onto it. Stock two-player controls. v3 is the first public XMvsSF Duo; apply it to the stock ROM, not on top of the earlier v1 or v2 previews. Known issues found in play, to be fixed in the next build: the start skips XMvsSF's slide-in team-Hyper portraits and the characters' team-Hyper voices; during the mode a fighter can walk through an opponent; some Hypers (Rogue's, Cammy's, Sabretooth's) can drop their target after the first hit; and stage props and animated stage pieces can show over the meteor sky.

Keep a backup of your stock X-Men vs. Street Fighter Euro xmvsf.zip (961004).
Drag xmvsf.zip onto xmvsf-cross-two-human-v3-preview.cmd; it writes xmvsf-cross-two-human-v3-preview.zip beside it.
Copy that zip to a separate ROM folder as xmvsf.zip and play with ordinary two-player controls.

Patch-only and hash-gated: it checks your clean parent member by member, never overwrites it, and refuses patched or foreign sets. No ROM, key, save state or emulator is included or downloaded. Preview build: this exact ROM ran in MAME 0.264 with ordinary inputs. Both teams' Cross (call pose, freeze, entrance, shared control, Hypers, timer, exit) was checked update by update, and the markers, TIME gauge, ∞ sign, sky and shadows at every sprite-list close over about 41,000 frames in nine line-ups covering all 17 selectable characters (those runs set the meter to Level 3 with an analysis write at the start of combat). It passed the installer's own PowerShell and Python test cases. A local FBNeo recorded check, native Windows and Fightcade/GGPO remain untested.

Receipt: /downloads/cross-fever/xmvsf-cross-two-human-v3-preview-patch.zip

What changed in v3

Two humans on ordinary controls, each picking both teammates. QCB+HP+HK starts timed Cross Fever the MVC1 way: the point strikes its call pose with its voice, XMvsSF's own Variable Combination freeze plays, then the partner comes in from behind the point with its own tag-in attack. HP+HK still tags and QCF+HP+HK stays the Variable Combination.
During the mode you control both teammates, and Hypers have no freeze and cost nothing: one motion fires both. When the timer ends the partner leaves and the point stays.
While a side's mode runs: MVC1's meteor sky, MVC1's TIME gauge over that side's Hyper gauge and MVC1's ∞ in place of its level number. The meter shows Level 3, and the mode costs two full bars when it ends (a Level 3 start runs longer and empties the meter).
MVC1's 1P and 2P chevrons stay over every fighter in play, COM over a CPU fighter. While a side's Cross runs, its tags, Variable Counters and Variable Combinations are refused, and the partner keeps its floor shadow.

xmvsf-cross-two-human-v3-preview.cmd · 3.1 MB · SHA-256 4b20caf3284f1369…

Download XMvsSF 1v1 Duo v3 (preview)

Release details and change log

Parent: Euro xmvsf 961004. Write-up: /blog/cps2-four-player-cross-fever.

What changed in v3

Two humans on ordinary controls, each picking both teammates. QCB+HP+HK starts timed Cross Fever the MVC1 way: the point strikes its call pose with its voice, XMvsSF's own Variable Combination freeze plays, then the partner comes in from behind the point with its own tag-in attack. HP+HK still tags and QCF+HP+HK stays the Variable Combination.
During the mode you control both teammates, and Hypers have no freeze and cost nothing: one motion fires both. When the timer ends the partner leaves and the point stays.
While a side's mode runs: MVC1's meteor sky, MVC1's TIME gauge over that side's Hyper gauge and MVC1's ∞ in place of its level number. The meter shows Level 3, and the mode costs two full bars when it ends (a Level 3 start runs longer and empties the meter).
MVC1's 1P and 2P chevrons stay over every fighter in play, COM over a CPU fighter. While a side's Cross runs, its tags, Variable Counters and Variable Combinations are refused, and the partner keeps its floor shadow.

Same latest version, other files

Evidence package: README, patch spec, verification, Python patcher
xmvsf-cross-two-human-v3-preview-patch.zip · 597 KB
SHA-256 fc2ef7a70b19b442c493cae413ef4d0a2adccf4f16c107dcfd59dc604be9e6ee