Source: GameSpot
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In 1981, the first Galaga arcade machine was turned on inside a North American arcade. In the subsequent quarter century, the Namco Games classic has remained popular, spawning several arcade sequels. During the early 1990s, one original Galaga near the University of Wisconsin-Madison campus was used as an ersatz breathalyzer--if a player could not score more than 30,000 points, his car keys were immediately seized. Today, a working unit remains a popular attraction at one of the more popular dives in San Francisco's Chinatown district.