Due to the requirement that players always be alert for opportunities to form sets or runs of sevens in their hand, this rule gives the game an element pay by phone slots ukof surprise and unpredictability. No Joking Permitted. Jokers are another way that Rummy Modern 777 differs from traditional rummy. Jokers are wild cards that can represent any other card in the deck in standard rummy. Jokers aren't used in Rummy Modern 777, though, which ups the difficulty of the game.