a new game i made!

these dice are for the new gae i made here are the rules:
there must be at least 2 players,you start off by doing rock paper scissors to see who goes first then the player who won rolls the two dice and you add up the numbers that you get and if you get to 20 you win! but if you go over, the numbers you get when you roll the dice you subtract from your score! once you get back in between 0 and 20 begin adding again first person that hits 20 wins also if you get 2 stars on one roll you win! questions on how the game works? comment down below!:3