Think today's games are violent? Drop a coin into French Execution, a fine example of the macabre from Edward Zelinsky's collection of early-20th-century mechanical arcade games, animation boxes, and other fun-house fare housed in a warehouse on Pier 45. Although the collection tends toward the cute, there's plenty to satisfy the world-weary gamer. Opium Den, for one, which stars addicts, skeletons, a hallucinatory snake, and a man with a machete. Then there's English Execution, which features just that: a hanging until death. In the Inquest, buffaloes surround a prone Indian, who's either injured or dead (probably the latter). Other titillating titles include Guillotine, End of the Trail, and Drunkard's Dream. Certain games of sport are, in their own buggy ways, as demanding as Madden. We've dropped handfuls of quarters on Play Baseball, Play Golf, and Play Football (actual names), then wound down with a peep show of the Great Fire. The machines are all in working order, and admission is free.