A duel is one run against one run. Play any cabinet in the arcade and Bakko turns that run into a link. Send the link to anybody you like.
They get one answer. They play the same cabinet, once, and the two runs are judged against each other. A duel stays open for 72 hours; after that it sleeps and the run you set stands.
Either side can send a rematch, and neither side needs an account. Free in the browser, like every other cabinet in the arcade.
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