Rattle and Hmmm

Rattle and Hmmm is a free-for-all minigame appearing in Super Mario Party. Its name is a nod to the  album by Irish band. It is also the only minigame to have a unique ending music track outside of Challenge Road due to its game show aesthetic.

Gameplay
In this minigame, players must pay attention to the rumble in the Joy-Con that three enemies make. After all enemies have performed, the players must listen to the rumble sequence and select the enemy that best matches the rumble sequence. The first player to answer correctly gets five points, the second player to do so gets three points, the third player gets two points, and the fourth player gets one point. Players who answer incorrectly are yielded zero points. After three rounds, the player with the most points wins.

On the Challenge Road, this is the second challenge of Mushroom Beach and the 23rd challenge overall. The goal is 10 points for the normal challenge and 13 points for the Master Challenge.

Enemy sets

 * Conkdor (weakest rumble, pecks twice)
 * Spike (strong, medium rumble)
 * Bob-omb (long-lasting rumble)
 * Blooper (shortest pause between rumbles)
 * Cheep-Cheep (medium pause between rumbles)
 * Porcupuffer (longest pause between rumbles)
 * Grrrol (steady rumbling)
 * Wiggler (scampering rumbling)
 * Several Chargin' Chucks (like Wiggler, but shorter-lasting)
 * Cheep Chomp (shortest-lasting rumbling)
 * Torpedo Ted (medium-length rumble)
 * Dragoneel (longest-lasting rumble)
 * Sumo Bro. (shortest lasting rumble)
 * Whomp (medium-length rumble)
 * Thwomp (longest-lasting rumble)
 * Sumo Bro. (shortest lasting rumble)
 * Whomp (medium-length rumble)
 * Thwomp (longest-lasting rumble)
 * Thwomp (longest-lasting rumble)

Controls

 * / (horizontal) – Feel rumble
 * – Move cursor
 * – Select

In-game description

 * "Pay close attention to the rumbling to find the answer!"
 * "Feel the difference between three types of rumbling."
 * "The first to find the right answer gets the most points!"
 * Tips: "Pay close attention to the intensity and duration of the rumbles."