Boulder Ball

Boulder Ball is a 1-vs-3 minigame first appearing in Mario Party 3, and later returning in Mario Party Superstars.

Gameplay
The game takes place in a desert, and the three team players try to climb a sandy slope, while the other player controls a machine that can fling boulders at them in an attempt to block their path. If squished by a boulder, a player is stunned and slides down the hill. If one of the team players reaches the top of the hill, they all win, but if the single player manages to keep the players from going on top of the hill, that player wins.

Solo (1 player)

 * – Aim boulder
 * – Drop boulder

Group (3 players)

 * – Move

Solo Side (1 player)

 * (Left and Right) – Aim Boulder
 * – Drop Boulder

Team Side (3 players)

 * – Move

Mario Party 3

 * Game Rules – "Use the machine at the summit to roll boulders down the slope and prevent the other 3 players from climbing up."
 * Advice – "Knocking multiple players down at once is the key. As you're dropping the boulder, try bouncing it off the walls."

Mario Party Superstars

 * Solo side: "Roll boulders down the slope to interfere with the climbers."
 * Team side: "Dodge the boulders and get to the top!"

Names in other languages
Fels-Koller