Bumper Balls

Bumper Balls is a 4-Player minigame in Mario Party, Mario Party 2, Mario Party: The Top 100, and Mario Party Superstars.

Gameplay
The objective of the minigame is to bump other players off a platform by utilizing personalized balls.

In Mario Party 2, there are three levels for the players to compete in, and they each have different challenges.
 * The first level takes place on a platform surrounded by lava. It is a basic level.
 * The second level takes place on an icy mountain. In the middle is a Fly Guy frozen in ice. It can be very slippery on the mountain, so players must take care not to slide off.
 * The third level is on a floating isle in the ocean. Characters bumped off are carried away by Bloopers. The isle contains rocks and bumps that can slightly change the player's speed when they roll over them.

In both Mario Party and Mario Party 2, the last player standing wins. If one minute passes with two or more players remaining, or if the remaining players get eliminated, the minigame is a tie. In both Mini-Game Island and the Mini-Game Coaster, the player must eliminate the three CPU players within one minute to win. If time runs out before the task is completed or if the player is eliminated at any time, it is a miss.

In the Mini-Game Coaster, the version of this minigame depends on the difficulty played: On Easy difficulty, the lava course is used. On Normal difficulty, the ice course is used. On Hard difficulty, the ocean course is used.

In Mario Party: The Top 100, the lava course from the Mario Party 2 version of Bumper Balls is used. The balls have more power than in Mario Party and Mario Party 2, and the platform is smaller, significantly shortening the minigame's average length.

In Mario Party Superstars, all three levels from Mario Party 2 return. Additionally, the balls revert to their power from Mario Party and Mario Party 2.

Mario Party / Mario Party 2

 * – Move

Mario Party: The Top 100

 * Move

Mario Party Superstars

 * – Move

Mario Party

 * Game Rules – "Ride your ball and try to bump the others into the sea. Use to roll around on your ball."
 * Advice – "Don't just push all the time. If you retreat, too, the other person's momentum may carry them into the ocean."

Mario Party 2

 * Game Rules – "It's an all-out Bumper Ball bash! Use your to roll your ball and bounce your opponents away!"
 * Game Rules (Mini-Game Coaster) – "Roll your ball about and try to bump your rivals off the edge. Be the last one standing to clear the game."
 * Advice
 * Lava Course: "The faster you're going when you bump an opponent, the farther your opponent is bumped by you!"
 * Ice Course: "The icy center is very slippery! If you bump or get bumped, it'll be hard to stop!"
 * Ocean Course: "Take your best shot when your opponent is stuck on the rocky bumps!"

Mario Party: The Top 100

 * Description and on-screen – "Ride on the ball and slam into your rivals to knock them off!"

Mario Party Superstars

 * "Bump your rivals off the edge."

Trivia

 * In the ice version, the Fly Guy encased in the ice is a cleverly disguised pre-rendered sprite, rather than a 3D model. This Fly Guy is no longer present in Mario Party Superstars.