Sphere Factor

Sphere Factor is a 2-vs-2 mini-game in Mario Party 7. Monty Moles, and Whomps appear in this mini-game. The point of the game is for each of the pairs to get to the other side of the place. They must push a giant ball around/through many obstacles, these include mini-mazes, Monty Moles, Whomps, and particularly hard to get over bridge. If the ball was to fall of the bridge, it would be hard to push the ball up a steep hill.

Trivia

 * This mini-game's name is a pun on the reality show Fear Factor.