All-Star Baseball 99 is a sports simulation game for the Nintendo 64, developed by Iguana Entertainment and published by Acclaim Entertainment in 1998. As a baseball video game, players can experience realistic Major League Baseball (MLB) action, featuring actual teams and players from the 1998 season. The game offers various modes, such as exhibition, season, and playoffs. Players can step up to the plate, pitch fastballs, and hit home runs using intuitive controls. With its 3D graphics and detailed player models, the game immerses fans in the excitement of America's favorite pastime.