What Goes Up...

What Goes Up... is a 4-player minigame in Mario Party 6. The name of the minigame is a reference to the phrase "What goes up, must come down," which is emphasized in both versions of the minigame. This is the only minigame in Mario Party 6 that changes music between day and night.

Introduction
In the daytime version, a cloud platform takes the leading player to the starting point, where they leap off the cloud as the screen splits in four.

In the nighttime version, three balloons lower the players to the starting point. When the minigame starts, the balloons pop.

Gameplay
Between day and night, the minigame's objective is different. In the daytime version, the player must climb higher into the sky with the help of clouds and Koopa Paratroopas within 30 seconds. Hitting a Paratroopa instead of jumping onto it sends the player downward. Whoever reaches the highest point wins. Any players who tie for first win also, unless all players tie.

In the nighttime version, the players must fall a distance of 200 meters/yards to reach the platform at the bottom first by avoiding Paratroopas and clouds.

The daytime variant of the minigame appears as the second minigame in Decathlon Park. Here, the player's objective is to climb as high as possible to earn as many points as possible, up to 1,000. The default record for this minigame in Decathlon Park is 100 meters/yards.

Ending
In the daytime version, as soon as the game has ended, players are suspended in their current positions by balloons. The losers'/loser's balloons then pop, and they fall, as the winner(s) perform(s) their victory animation(s) and the character waves. If the player is less than 10 yards, they will land and do the same losing poses as in the nighttime version.

In the nighttime version, as soon as a player wins, the others are suspended in the air by balloons. The victor then performs their winning animation as the losers' balloons pop, sending them plummeting toward the ground. If they were close to the ground, they will land and do their losing poses.

Controls

 * – Move
 * – Jump

In-game text

 * Rules (Day) – "Jump on Koopa Paratroopas to reach breathtaking heights! Whoever reaches the highest altitude wins!"
 * Rules (Night) – "Fall as fast as you can by avoiding Koopa Paratroopas and clouds! Reach the ground first to win!"
 * Advice (Day) – "Watch the moving Koopa Paratroopas and time your jumps carefully!"
 * Advice (Night) – "Koopa Paratroopas and clouds will only slow you down! Avoid them any way you can!"

Trivia

 * While the nighttime version is still called "What Goes Up...", the demo version of Mario Party 6 that could be played in stores separately referred to it as "Must Come Down!"
 * Because the music track for this minigame changes depending on the time of day, this is one of only two minigames in the Mario Party franchise to have a version that has a different music track in the same game, the other one being Hot Rope Jump from Mario Party, where the "Full of Danger" music plays in the Mini-Game Island version, instead of the usual "Let's Limbo."