If we were to count up the number of quarters we spent feeding the machine back in the day just to play this game, we'd probably be ashamed. Who needs college, though, right? SFII brought the franchise into the mainstream (the first one only kinda-sorta did) and essentially created the fighting genre as we know it today. This second installment spawned a cult-like following that still goes on today as they debate the nature of combat techniques, timing mechanisms, and whether or not they can actually see Chun-Li's butt crack when she does her spinning bird kick. Hey, it's research!