Sphere Factor as it is seen in Mario Party 7
Sphere Factor is a two vs two mini-game found in Mario Party 7. It consists of both teams of two players working together to push a large ball through an obstacle course. There is logs to avoid, as well as Whomp's and Monty Moll's. If the players push the ball into any of these obstacles it will get stuck on them for a short time. Later there is a bridge that must be scaled, if the players push the ball of the bridge and into the rut they will be very much slowed down. The first team who gets their ball across the finish line at the end wins.
Players use the control pad to move and push their ball.