I've never heard of either the quote or the underlying case (might not be an American case?), but code is speech. A law directly solely at the code or content o

I've never heard of either the quote or the underlying case (might not be an American case?), but code is speech. A law directly solely at the code or content of a game would be struck down by the (US) courts. And indeed, nearly every (US state or federal) law so far directed at regulating the content of games has been struck down by the courts. The execution of a program is "action" and can be regulated if it runs afoul of laws on action, i.e., in the sense that yelling "fire" in a crowded theater can be outlawed. It would be an extremely narrow set of circumstances in which such a law on video games would be allowed. The (US) states have tried to regulate video games many times, and have failed just as many times.