Billistics

Billistics is a Free-for-All minigame in Mario Party 9.

Introduction
The camera shows one part of the tower, and goes up, showing Bullet Bills being fired near it, until it reaches the top, with the players.

Gameplay
The players must try to survive on the top of a tower for 60 seconds, avoiding the Bullet Bills that fly across it. There are two types of Bullet Bills: the normal Bullet Bills that fly in a straight path, and Missile Bills that home in on a player. As time passes, more and more Bullet Bills are shot consecutively at the players. Any Bullet Bills that collide with each other explode upon contact. The last player standing, or any player(s) who survive all 60 seconds, wins.

This minigame is also one of Bowser's Reverse Minigames. In it, players must be the first to be hit by a Bullet Bill to "win."

Trivia

 * The name is a pun on ballistics.
 * The tower the minigame takes place on looks similar to the tower used in some minigames in the first Mario Party.