There are 4 Game Modes in this game. Redeal Mode : In this game mode, Rideal of talon can do it twice. Joker Mode : Two jokers are added to a hand.Even if joker combines with which card, it is set to 13. Open Mode : All cards become open.There is a special rule in this Mode.See apps help (page 4). Hard Mode : An auxiliary rule is only Rideal 1 time.