When players successfully meld cards, they receive points; when they hold unmelded cards at the end of a round, their score is reduced. Players are encourthe night of vegas slotsaged to use strategy when deciding when to go out and how to effectively manage their hands by this scoring system. Special Cards and Strategy. Unpredictability is added by the introduction of special cards that can change the dynamics of gameplay, such as wild cards that can represent any card in a meld.