Chain Chomp Romp

Chain Chomp Romp is a boss minigame in Mario Party 9.

Introduction
The camera shows a view of the players, the tracks, the cannons, and Chain Chomp. The view then zooms in on Chain Chomp, who romps around slightly, followed by the two volcanoes in the background erupting one after another.

Gameplay
The players damage Chain Chomp by picking mine carts and hoping that they lead to cannons. Before each round, the players will get a view of the rails and the alternations between paths. The players must then select their mine carts by pushing one of the buttons. Along the tracks, there will be routes that switch the paths the mine carts are taking. There are five paths; four lead to cannons (occasionally, one leads to a gold cannon), and one leads to the Chain Chomp. Players who reach an iron cannon blast Chain Chomp and earn one point, and the gold cannon gives the player three points; hitting Chain Chomp deducts the player's score by one point.

When Chain Chomp loses half its health, two of the tracks will lead to it instead of cannons.

The player who earns the most points when Chain Chomp is defeated will win.

Ending
Chain Chomp will be blown back. The steak will be pulled out of the ground by the sudden push back, and Chain Chomp will fly away, revealing several Mini Stars. The volcanoes will then erupt once more, one after another.