pues hablando de dificultad he encontrado esto en capcom-unity que explica muchas cosas de la baja dificultad del juego en arcade:
10) The CPU difficulty. In the original game, the difficulty of the computer AI is ridiculously hard. It’s harder than in any other Street Fighter game ever. Beating the first opponent is hard and beating the third one is usually beyond hard. Well, it’s just as hard as ever if you pick Classic mode, but in Remixed mode, we fixed up the difficulty so that easy is actually easy, medium is actually medium, and so on. Try playing the HD Remix arcade mode (where you fight all the CPU opponents), then if you want to risk breaking your controller in frustration, switch to Classic arcade mode.
asi que habra que jugarlo en arcade classic para volver a tener pesadillas con el juego.