Backyard Baseball '09 (USA) (バックヤードベースボール '09 (USA)) is a baseball game for the Nintendo DS. It is the ninth installment of the Backyard Baseball series and is based on the American version of the game. The game features a wide variety of players from kids to pros, with each one having their own unique skills and abilities. Players can choose to play with or against their friends in a variety of game modes, including regular season, playoffs, and tournaments. Additionally, players can customize their team and characters to suit their playstyle. The game also includes a variety of mini-games, such as a batting cage, and a home run derby. The game also features an online mode, allowing players to compete against other players online. Backyard Baseball '09 (USA) is a great game for baseball fans of all ages and is sure to provide hours of entertainment.