Cosmic Slalom

Cosmic Slalom is a Duel Minigame in Mario Party 8.

Introduction
The first player appears sitting inside a hovercraft inside a large tube. The screen splits to reveal the other player sitting inside their hovercraft, and the mini-game begins.

Gameplay
The goal of the mini-game is to race through the slalom course racing tube as quickly as possible, without running into electric fences, which causes players to spin out and wastes time. To temporarily pick up speed, the player can use a speed boost, which also allows them to quickly blast right through the fences with no effect. However, the speed boost can only be used a total of three times.

Ending
The winning player performs their victory pose inside their hovercraft and then jets away out of sight. The losing player is not shown.

Trivia

 * The mini-game is very similar to the special stages in Sonic The Hedgehog 2.
 * A glitch caused by using the speed boost right before passing the finish line causes the player to pass through a black wall and actually exit the tunnel into space.