Card Party is a side-game from Mario Party 5. It is very similar to the main game, however in the form of a card game. Hosted by Mamar (in charge of Bonus Mode), this board is entirely made up of cards, with character game pieces instead of actual characters. The first thing that players do is choose the size of the board (7x7, 8x8, 9x9, or 10x10). Then, the player can select their character they want to play with. They can play with the following characters:
CPU players pick their own characters. Next, the order of play is chosen by picking cards numbered 1, 2, 3, and 4. The player that picks 1 is first, and so on. When this is done, players choose where to start on the board. Once the game starts, each player rolls the dice (not Dice Block) and moves a certain number of spaces. As they go turning cards over, they can pick which direction they want to go. When a new card is turned over, it reveals a Path Card, Item Card, Event Card, Bowser Card, or Star Card.
These cards simply open a pathway for players to continue traveling. This is where they choose which direction they want to go, depending on which way the path went. It is always best to head toward the Star cards, as the winner is determined by the number of Stars. Sometimes, another die is revealed from under a Path Card, letting the player roll it and adding the number rolled to the current number of spaces left.
These cards give useful items that can be used by pushing at the beginning of the player's turn. The items used are taken from the main game and have similar effects.
These cards bring an unexpected event that can be good or bad.
This card has the same background as Path Cards, and are randomly placed on the board. When this card is turned over, Bowser or Koopa Kid appear to cause trouble. Bowser may trigger one of these events:
If Koopa Kid appears, he gives that player a cursed mushroom and ends their turn, or sometimes he calls Bowser to cause trouble.
These all look the same from the top side, but once they are flipped over, there are three possibilities:
Last Card Event
If a player is in 4th place when there's only one Star Card left in the game, one of those events can happen. Once the event is done, normal gameplay resumes.
At the end of the game, the player with the most Stars wins. If there is a tie, players then have to play a tie-breaker game to determine the winner. Eight cards are placed facing down, and players take turns choosing cards until one player reveals the Star Card. This player is then declared the winner.