Gachinko Pro Yakyuu (aka Gachinko Professional Baseball): Virtual baseball boils down into a match between pitcher and batter...spread out over nine innings. Players start the game as a newly formed baseball team with the need to recruit from a crop of 670 players from professional clubs. Working on a budget, the aim is to shape a decent team and win games - with the ultimate goal of winning enough games to become highly profitable and thus buy a championship with the help of the league's best players. Updated 2003 data in the game allows fans of Japanese professional baseball to live the current season. Gachinko baseball uses a cel-shaded cartoony look to relay visuals.

Unlike Real Sports Pro Baseball, Gachinko Pro Baseball is more of a management simulation where the player adopts the role of owner, trader, cheerleader and dominant force in the club. Batting and pitching is handled by the opportune tapping of buttons. Running commentary during a game helps to relay the details of the action as each pitch, pop-up and strike out is rattled off.

Game modes include the Drafting game where a team is created and managed, a Pennant Race, Exhibition Game, All Star Challenge and of course, a 2-player head to head tournament.