The Game Boy Advance hosts the Generation III core games and two enhanced remakes. "Best" depends on what you value:
| Game | Year | Best For | Key Features |
|---|---|---|---|
| Pokémon Emerald | 2004 (JP) / 2005 (Intl) | Definitive Hoenn Experience | Battle Frontier (post-game facility), both Team Magma/Aqua storylines, animated sprites, move tutors, Battle Tower, cloning glitch (patched in later carts). |
| Pokémon FireRed / LeafGreen | 2004 | Kanto Nostalgia + Modern Mechanics | Gen 1 remake with Gen 3 engine. Sevii Islands (post-game), VS Seeker (rematches), Wireless Adapter support (Mystery Gift), updated graphics/UI. Best "first Pokémon game" today. |
| Pokémon Ruby / Sapphire | 2002 (JP) / 2003 (Intl) | Original Gen 3 / Secret Base Fun | Introduced Abilities, Natures, Double Battles, Contests, Secret Bases, Dive mechanic. No Battle Frontier. Internal battery death kills time events (berries, tides, shoal cave). |
Legal Note: GBA carts are expensive ($50–$150+). Pokémon Emerald is heavily counterfeited (battery save vs flash save, label texture). Buy from reputable sellers (eStarland, Lukie Games, local retro shops with tester).