Sphere Factor

Sphere Factor is a 2-vs.-2 minigame in Mario Party 7 and Mario Party: The Top 100. Its name is a pun on the title of the NBC reality game show , as was the name of the Mario Party 6 minigame Pier Factor.

Introduction
The camera focuses on the goal line, then pans to the players.

Gameplay
The object of the minigame is for each pair to get its giant ball to the goal. The ball must be pushed around and through many obstacles, which include mini-mazes, Monty Moles, Whomps, and a bridge that is particularly hard to get over. If the ball falls off the bridge, it needs to be pushed up a steep hill. The team that gets its ball to the goal first wins.

In Mario Party: The Top 100, the balls roll much faster than they did in Mario Party 7.

Ending
In Mario Party 7, the winning team's characters make victory poses in front of their ball and the Whomps, and the Monty Moles pop out of the ground.

Mario Party 7

 * – Move

Mario Party: The Top 100

 * Move

Mario Party 7

 * Rules – "Help your partner roll the giant ball to the goal. First team across is the winner!"
 * Advice – "Try to cross the wooden bridge and avoid the dip. If you fall into it, you'll lose time."

Mario Party: The Top 100

 * Description – "Push the ball as a team and roll it through the obstacles to the goal!"
 * On-screen – "Roll the ball to the goal!"