Sphere Factor

Sphere Factor is a 2-vs-2 minigame in Mario Party 7. Monty Moles and Whomps appear in this minigame. 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 a particularly hard to get over bridge. If the ball falls off the bridge, it needs to pushed up a steep hill.

Trivia

 * This minigame's name is the second in the Mario Party series to reference to the reality show Fear Factor. The first was Pier Factor from Mario Party 6.