Rapid River Race

Rapid River Race is a Free-for-All minigame appearing in Mario Party 10 and Mario Party Superstars.

Gameplay
The minigame takes place on a stretch of water divided into four lanes where the players are racing in motorboats on each identical track. The objective is to boost speed to get ahead of the other racers while avoiding Urchins. A six-bar meter on the top left of the screen indicates how fast the player is traveling. The meter starts with one bar initially, but every time the player increases their speed, another bar is added until the maximum speed is reached. If any player hits an Urchin, they will spin out for one second, lose all of their speed, and revert the meter to one bar if it was increased. The first player to make it all the way to the end wins.

In Mario Party Superstars, the minigame has a record system, absent in the original version. Visually, the water is slightly less transparent and has more of a bluish tint. Additionally, at the end of the minigame, the players stand outside their motorboats on a beach, with the winner doing their victory pose in front.

Mario Party 10

 * − Switch spots
 * − Accelerate

Mario Party Superstars

 * (Left and Right) – Move
 * – Accelerate

Mario Party 10

 * Boost your speed with !

Mario Party Superstars

 * "Steer your hovercraft to the finish line. Go as fast as you can, but watch out for Urchins !"

Mission (Mario Party 10 only)

 * Speed Rafter: The player must reach the goal within 20 seconds.

Names in other languages
A tavoletta