member who hobbies as ESRB
archive scavenger has stumbled upon an update for Marvel vs. Capcom 2
that lists the game for PlayStation 3 and Xbox 360. The game, a frenetic 3-on-3 arcade bralwer from 2000 (and probably one of the main reasons you keep a Sega Dreamcast around, assuming you didn't pick up the PS2 or Xbox One version), seems like a perfect fit for Xbox Live Arcade or PS Network. We've reached out to Capcom for more information.
[Thanks to everyone who sent this in!]