Many of you probably recall that DIMPS -- the developers of Street Fighter 4 -- recently acquired the rights to The Rumble Fish series. Since then they have started a "revival" process of the game by re-releasing it in Japanese arcades via NESiCA x Live. This version includes balance updates and a new "Double Impact" system, though details on what it is exactly are not known just yet. More updates will be addd into the game post-release.
A new batch of screenshots for this version of the game just hit the web which you can check out at the link above.