All-Star Baseball 2004

The game features various modes such as Exhibition, Season, All-star game, Home run derby, Playoffs, and World series. However, the Franchise mode is absent from this version. Multiplayer against a second player can be played through a link cable, with progress stored in the battery-backed-up memory.

Gameplay involves aiming the swing using a large triangle indicator during batting phases, and rotating/tilting to determine the hit direction. A similar mechanic applies to pitching during defense, where fielding a base is done by choosing one on the directional pad or letting the CPU take over automatically. The AI behavior of computer-controlled players differs significantly from the main console version.

One notable feature introduced in this year's version is the ability for CPU pitchers to throw outside the strike zone. With faster base runners, doubles and triples are now possible. Additionally, there are more animations, such as pitcher follow-throughs, batter walk-ups, and enhanced stadium details like scoreboard celebrations.