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In order to win a musical battle against twin robots, you need to be doubly attentive. Watch the moving arrows on the screen, and press the appropriate keys when you see the arrows line up with the fixed icons at the top. Act very fast, because the arrows are gaining speed with every second, and in order to hold out until the end of the song, you need a good reaction speed. If you make several mistakes in a row, the round will be lost and you will have to start all over again.