More on Street Fighter Alpha 3 Double Upper...

From: IGN.com

September 16, 2005 - At last year's Tokyo Game Show, Capcom showed the PSP to be a swell home for traditional 2D graphic techniques with its Darkstalkers Chronicle revival. This year, most of Capcom's games have abandoned sprites (although not the flat-plane viewpoint that is one of the classic aspects of 2D techniques), but the PSP version of Street Fighter Alpha 3 is still exact to the arcade games that it originated in.
The PSP's SF gets a spiffy new title: Street Fighter Alpha 3 Double Upper (not written on the game necessarily, but described with two arrows in the logo.) The change is due mostly to the character changes. Added to the already-impressive roster are a number of characters from SF3 and other Street Fighter games, including Eagle, Maki and Yun. Also brand new to PSP edition is Ingrid from the ill-fated Capcom Fighting Jam. Ingrid is all a'flutter with dancing moves as she fights, with spins and twirls in her kicks. Her silly style might have seemed a little out of place in earlier Street Fighters, but she melds into SFA's colorful character set just fine. Eagle also has a cool bat-swing that knocks fireballs back at you, which was cool to see.
SFA3 Double Upper earns its new title in other ways as well. There is the ability to choose a tag partner for special bout types and swap out as in the VS. games from Capcom. There's also a new 2D opening sequence that uses a simple cartoon style that may be less flashy than what Capcom does these days but feels fitting for the Alpha series.
Translating the game to PSP might seem to be easy -- it's 2D, and the PSP has tons of horsepower -- but Darkstalkers struggled some on the system. Street Fighter Alpha 3 fares better. The game is in true widescreen now instead of the stretch mode used for Darkstalkers, and the loadtimes are faster and more regularly tied with the flashy Street Fighter effects screens than the blank "Now Loading" page. The 2D animation looks smooth and fast on the PSP, although the game does show its age -- around the corner is Guilty Gears XX, and it is sugar-sweet. Street Fighter Alpha 3 also has a few of the control hang-ups that Darkstalkers suffered with the PSP's stiff D-Pad. Fireballs came off more regularly than Darkstalkers, but we still missed a few of them, and SFA3 is so manic that you need the control at your fingertips ever time. There were a few options on the front end for controls, and while we didn't find anything to soften up responsiveness completely, we'll play with some of the toggles another time and see what the difference is and how dependable the controls are when the game is released in Japan later this year.