you'll find it on Nintendo's website on the Mario Party-e page. for some reason it's in FRENCH.
it's a card game for 2-4 players but more players can join by adding one more deck.
The GBA card e-reader isn't required. You just need cards and buddies.
the goal of the game is to be the first one to have a set of 3 Item cards in play (Hat, Dress and Shoes) and then to play the Superstar card. Other cards represent tools you can use to search the deck for the item you need or to steal cards from your opponents. Every player starts with 5 cards in hand. On their turn the active player must draw a card from the deck and then play or discard a card to the discard pile.
in the deck there are also 11 Challenge cards which contain one minigame each (to be played with the e-reader)
Among them I'd look out for the Bowser's Roulette card...
Cele the Ref
