High Rollers

High Rollers is a Minigame Mode in Mario Party 9. This mode can be played with up to four players. In this mode, players compete in a series of minigames to gain up to 500 points by rolling their cube over the panels worth 30, 20, 10 or 0 points. When a player rolls over a number panel, the amount of points it gives a player decreases by 10. If a player roll to a 0 points pannel, it reset to 30. When a panel reaches zero, after everyone move, Blue Toad resets the panel's value to 30. The board is composed of 20 panels and the center POW Space.

The number of spaces the player can move depends on what place they get in the previous minigame. First place is allowed to move four spaces, second place moves three, third place moves two, and last place only moves one. The selected player chooses a minigame by stopping the Minigame Wheel. The player who picks first will be selected at random, then the succeeding choices are made by the player who finished last place in the last minigame. Any ties are settled by rolls via Dice Blocks. When there are four players, if there are ties for both first place and last place, the first place players roll first and the players in last place roll next.

There is also a POW Space in the center of the board. When a player rolls over the POW Space, every panel's point value is decreased by 10. If a block is at zero, then its value resets to 30. The POW Space can only be used by one player per turn, and is first active when everyone has taken their first turn.

Finally, when there is a 100-point gap in between players, the losing players gain a Boost item, which allows them to dash across the board, rolling over number panels and pushing off other players in their way, without using up a space to move. Players who are knocked off the board are unable to take their turn. When they do get a turn again, they land on the POW Space, activating it if it hasn't already been. If a player is blocked by others and can't move, he is teleported to the center, like players knocked off the board.

The game ends when one player gets 500 points or more.

In-game description
"Play minigames to determine the order in which players roll around the board to pick up points. The first player to reach 500 points is the champion!"