Flatiator

Flatiator is a 1-vs-3 mini-game found in Mario Party 5.

Gameplay
The solo player on the large ball attempts to squash the other three players while the other three player avoid the solo player as the time starts. Monty Moles pop out from the dirt as time passes. If one of the other three players trip on the Monty Moles, the player is stunned at the moment. If the solo player squashes all three players, the solo player wins. But if the one of the three players survive, the other three players actually win.

Trivia
Flatiators name is derived from Glatiator