Hello how may I help you? I need some help regarding game rules With what game? How do you play catch? In the game of catch two or more people throw an object between themselves (usually it's a ball) for an indeterminate length of time. Is there a winner? No, there's no winner. It's noncompetitive. Is it possible to play by yourself? No, there has to be at least two people to play. Ok thank you You are welcome. Have fun playing!