I downloaded the game the other day, mainly due to my fond childhood memories. I planned on playing it for a few minutes on the drive home from work and ended up playing for most of the night. Nothing about the game is difficult although I am playing on normal difficulty, as hard and extreme were locked from the start. The first stops on the trail are all training mode events anyway to show you how each mini game works. On each loading screen, there are bits of trivia and history lessons. Great stuff for kids and ill-informed adults such as myself.
Sadly, I lost my youngest daughter Cammy when a Bald Eagle swooped in and carried her off "Never to be seen or heard from again." This happened real early in the game and I didn't realize I was supposed to shoot it to keep my family safe. The bird came back later to snatch up my son Guile, but this time daddy Zangief blew it out of the sky. Mommy Rose wasn't too happy about it, which makes no sense after losing her youngest daughter. I guess having daughter Chun Li around was enough for her.
In short, a fun and educational game which isn't for everyone. Definitely not for the 'hardcore' gamer, but a definite fun change of pace from the normal grinding of experience and shooting of people.