Dinger Derby

Dinger Derby is a 4-Player minigame in Mario Party 5, Mario Party: The Top 100, and Mario Party Superstars. It was also included as part of a Mario Party 5 demo found on a bonus disc bundled with preorder copies of Mario Kart: Double Dash!! The minigame's name is a variation of the name of the real-life.

Introduction
The camera is zoomed in on one of the players, and zooms out as each of them takes a practice swing, then hits a baseball. In The Top 100, only the animation of players hitting a baseball is shown.

Gameplay
The players have 30 baseballs thrown at them by a pitching machine and must hit as many of them as possible. There are four types of pitches: a standard pitch, a fastball, a slowball, and a screwball that wobbles furiously. Which pitch is thrown depends on how long the machine winds up to throw. A fast wind-up indicates a slowball, a normal wind-up is the standard pitch, a slow wind-up is the fastball and an even slower wind-up is the screwball. If two balls come toward the character, it counts as one ball, since the player can hit only one of those two. If the player manages to hit a ball at one of the spectators, the spectator will be dazed for a moment. The player who hits the most balls wins.

Decathlon
This minigame appears in the "Decathlon" modes in both Mario Party 5 and The Top 100. It is the sixth minigame in Mario Party 5, and the first minigame in Mario Party: The Top 100's Half Decathlon. Here, the player's objective is to hit as many balls as possible to earn as many points as possible, up to 1,000. In both games, a player can get 1,000 if they can hit all 30 balls. The default record for this minigame in Mini-Game Decathlon is 17 points (10 in The Top 100).

Mario Party: The Top 100's scoring system
Players earn ~47.368 points times the number of balls hit for the first 19 balls; after 19 balls, the player will score 900 points plus another ~9.091 points for each additional hit. Decimals are rounded down.

The scoring in Mario Party: The Top 100 is much more lenient. A result of 20 gives the player 909 points; the same result in Mario Party 5 gives the player only 500 points.

Ending
The camera changes angle and the bats disappear. The players then perform their victory/losing animations as the crowd cheers and confetti and balloons appear to commend the winner's/winners' success. If any player manages to hit all 30 balls, a hot air balloon with a big number 30 on it will appear.

Mario Party 5

 * – Swing

Mario Party: The Top 100

 * Swing

Mario Party Superstars

 * – Swing

Mario Party 5

 * Rules – "Swing the baseball bat and hit the pitches from the pitching machine. Whoever hits the most pitches wins."
 * Advice – "Try watching the speed of the arm to predict the speed of the pitch."

Mario Party: The Top 100

 * Description – "Swing at just the right moment to hit the machine's pitches!"
 * On-screen – "Swing at the right time to hit the pitches!"

Mario Party Superstars

 * "Swing at just the right moment to hit the machine's pitches."

Trivia

 * Daisy's artwork for this minigame in Mario Party 5 is similar to that of another baseball-based minigame from Mario Party 3, Hey, Batter, Batter!