Not everyone who is "college level" at that age is autistic. I passed the ACT exams at significantly higher-than-highschool-grad levels when I was 12, and my parents only held me out of university because they were afraid that I was too young to deal with the social aspects of it (code, more or less, for worrying that I'd have my pentecostal values corrupted by the evil liberal crowd that tends to frequent such places). They had no problems, though, letting me work "part-time" in their computer store, though, of course, starting about a year later when my dad opened one.:P
In any case, considering that one of his interests is martial arts, I think presuming that he has motor coordination issues is premature. I do agree, however, with a number of commenters who suggest that his "dislike" of video games is probably coming from adults around him who are pressuring him with notions that he shouldn't "waste" his time on such things.
Speaking from experience, I'm a bit torn on whether or not to be happy for him that his parents haven't held him back, or concerned for him that all of the exposure will cause him to have some sort of meltdown when he is a bit older (a scenario I consider pretty likely). It's pretty hard to go from being "kid genius" to "regular guy," which is pretty much the case as soon as you exit the academic world no matter how intelligent you are, since you are accustomed to people actually paying attention to what you say based on the merits of what you are saying and the novelty factor of hearing someone so young say "intelligent things," not how much money you have or how good you look. Like age differences, intelligence differences seem to look a bit less extreme when you get older, realistically, in pretty much all shallow social encounters, and only longer-term interactions with people tend to pull out the differences unless you are dealing with someone who really is suffering from some sort of ASD.