Bowser Card

The Bowser Card is a type of card that appears in Mario Party: Island Tour only in the board Shy Guy's Shuffle City. It appears as a red and black card with Bowser's face on it, possibily hinting it wasn't supposed to appear normally but was added by Bowser himself. It is a card that must be avoided as it causes only troubles. The player may pass it to others in a similar fashion of Tag.

At the start of the game, after Toad gives the cards to the players, Bowser shows up and gives this card to a random player. That player must get rid of the card within three turns, otherwise they will got a Bowser Penalty, which effects are going backwards a certain number of spaces, return to last place or a funny event (eg. Receive a lifetime supply of cotton candy!) that won't happen. The player is sure that they have the malicious card when a Bowser light is circling in their bottom screen. To get rid of it and passing it to another player, they must hope the player in question draws the card randomly while trying to get another. Another way to pass the card is triggering an event that forces the player that actives it to take this card. Whatever happens, after 3 turns, the Bowser Penalty will be given, as well as a new set of card, including the Bowser Card. Furthermore, the player who holds the card at the end of the game will automatically be in last place as stated by Toad.

Trivia

 * This could be a successor of Bowser's Bogus Items, a collection of Bowser-made items that appear in the original Mario Party.