Reaction games for two players

Both players see the same thing at the same instant, and the only question is who answers first. Math Duel shows one sum and four answers, Match Rush hides a single shared symbol in two sets of five, and Fruit Duel scores against anyone who cuts something that was not fruit. A wrong answer scores for the other seat in all three, so accuracy is worth more than speed, and no round is longer than ninety seconds.

6 games, played by two people on one device.