Castle Clearout

Castle Clearout is an extra minigame featured in Mario Party 9. One to two players can play.

In "1 Player" mode, players can earn "2" party points for each level that they clear; in "2 Player" mode, players can earn "5" party points when the game is finished.

Gameplay
The players can first select which level they may play (however, he or she must choose level one if it is their first time playing), and there are "50" levels total. The game is like Dr. Mario, in that the player must clear levels by placing a group of three marbles onto the ground to clear the three marbles with a star pattern on them, as well as similarly colored marbles. The player can achieve this by rotating the marbles to match colors with them.

Clearing a group of marbles with similar colors in the shape of a line, pyramid, or hexagon also clears any other marbles of the same color. As the player passes through levels, more and more marble colors will appear. Colors include red, blue, green, yellow, and purple, with the former three being the default colors.

Another similar element to Dr. Mario is that the player must avoid having the marbles touch the top of the area, or he or she will lose.

Lastly, as the player advances through each level, the marbles will gradually fall at faster speeds, which can make it even harder to place them at the areas that the player wants. Additionally, the amount of marbles to start out with will gradually increase too.