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How about having an off switch on one side and an on switch on the other, then we can fight it out by seeing how many goes for each?

Or, make in a flappy bird game? One up and one down button.

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That's a good idea. Or you could have a grid of squares, with each person getting their own color when they click each one. Any of these ideas would work much better if you could prevent scripting of course.

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