3x8 is a game of questions and answers, divided into 8 categories. The plays of each participant will be random, with a variant: on the right side of the screen appears a topic with "bonus." If it matches with which the machine selects and responds correctly, that item will be considered complete even if it is the only correct answer. In addition, it will declare it "exempt", so the roulette will not stop at it, thereby increasing the chances that it will stop at an incomplete one.