Online, Multi-cartridge Multiplayer
Multi-cartridge Multiplayer, Offline Versus Multiplayer
Multi-cartridge Multiplayer, Offline Co-Op Multiplayer
Number Of Players, Local - Co-Op # of Players, Multi-cartridge Multiplayer
![All-Star Baseball 2003 [GBA]](https://pocketmedia.ign.com/pocket/image/object/017/017482/620389.jpg?width=250&crop=1%3A1%2Csmart&auto=webp&quality=20&dpr=0.05)
Number Of Players, Multi-cartridge Multiplayer, Cartridge Save
![All-Star Baseball 2004 [GBA]](https://pocketmedia.ign.com/pocket/image/object/489/489901/636334.jpg?width=250&crop=1%3A1%2Csmart&auto=webp&quality=20&dpr=0.05)
Number Of Players, Memory Card, Local - VS # of Players, Multi-cartridge Multiplayer, Cartridge Save, Console-To-Handheld System Link
Number Of Players, Local - Co-Op # of Players, Multi-cartridge Multiplayer
+4
Online, Multi-cartridge Multiplayer, Online Co-Op Multiplayer, Offline Co-Op Multiplayer, Offline Versus Multiplayer
Number Of Players, Multi-cartridge Multiplayer
Multi-cartridge Multiplayer, Offline Versus Multiplayer
Multi-cartridge Multiplayer, Offline Versus Multiplayer
Multi-cartridge Multiplayer, Offline Versus Multiplayer
Number Of Players, Online - VS Number Of Players, Online, Local - VS # of Players, Multi-cartridge Multiplayer
+1
Number Of Players, Multi-cartridge Multiplayer
Multi-cartridge Multiplayer
Memory Card, Online, Multi-cartridge Multiplayer
Multi-cartridge Multiplayer, Local Four-Player Multiplayer
Multi-cartridge Multiplayer, Offline Versus Multiplayer
Memory Card, Multi-cartridge Multiplayer, Offline Versus Multiplayer
Memory Card, Multi-cartridge Multiplayer, Offline Versus Multiplayer