?? ?? ??: ?? ??? ?? ???? ?? ??? ????. ??? ??? ?? ?? ???? ?? ??? ???. ?? ?? ??: ??? ??? ? ?? ?? ?????. ?? ???? ???? ?? ??? ?? ?? ??? ? ????. It should be steered left, suitable, up, and down to stay away from hitting walls and the human body of both snake. The player who survives the longest wins. solitary-participant versions are much less common