A sample from NZGamer.com on a preview for MySims Party:
As you might have guessed, each party game is hosted by a different MySim, and include everything from sports to dance, shooting to air guitar games. You can play right through the games, one after the other, or you can play with up to four friends in a ‘festival’, hosted by a different member of the MySims community. Festival games are all centered around a specific theme, such as food, or music. Winning games in the festivals can result in some cool unlockables, whether they be various bonuses to improve your performance, or perhaps new items, accessories, characters who can join your team, and even new party games.