You roll four dice, split them into two pairs, and place white markers on a stop-sign shaped plastic board to climb numbered columns. The catch is that you can keep rolling as long as you can advance one of your three active markers. If you roll the dice and cannot make a valid pair on any of your active columns, you bust and lose all progress made during that turn. The decision to stop and secure your position or roll just one more time is brutal. The neon plastic board is durable, though the gameplay is pure luck-driven math.