This version is widely considered the definitive way to play the original Four Swords due to several major enhancements: Single-Player Mode
Since the game was delisted from the Nintendo eShop years ago, it is currently unavailable for official purchase or download. Zelda Wiki Original Hardware The Legend Of Zelda Four Swords Anniversary Edition Rom
Technically, the Anniversary Edition is an enhanced port of the original GBA Four Swords. It introduced critical features that the original lacked, most notably a single-player mode where one player controls two Links. It also included "The Realm of Memories," a series of levels inspired by Link to the Past, Link's Awakening, and the original NES Zelda. Because the game was never released physically and is no longer available for purchase or download on official hardware, the ROM has become the only gateway for new fans to experience this specific chapter of Hyrule’s history. This version is widely considered the definitive way