This arrived today, so I thought I’d give it a go. Chose Ken (since he is best), and set about Aracde Mode. The first thing I noticed, was that trying any fireball-type moves that need the L button on the GBA is pointless as they’re not possible. That aside, it plays well enough. The sound is bizarrely tinny and rubbish though.
Beat Ryu with ease, ditto T. Hawk and Fei Long. Guile was harder (I lost a round), and then died at the hands (or rather, teeth) of Blanka.