Since there is no official GBA release of Omega Ruby, "Omega Ruby GBA" usually refers to one of two things in the Spanish-speaking community:
Mega Evolution: Many of these ROMs integrate a working in-battle Mega Evolution system.
Realizing your search for " Pokémon Omega Ruby 1.4 ROM GBA Spanish" involves two distinct possibilities: you are either looking for the official 3DS remake
For a version in Español, look for community translations on Spanish-speaking ROM hacking hubs like Whack a Hack!
This is a highly popular recent release that attempts to replicate the 3DS experience on a GBA engine with extreme difficulty settings. Language Support: Fully playable in and English. Key Features: 412 Pokémon: Species ranging from Generations 1 through 9. Mechanics: Includes Mega Evolutions (including new forms from Legends: Z-A ), Gen 8 moves, and the PSS (Physical/Special) split. Custom UI:
If you specifically want a .gba file to play on a GBA emulator (like MyBoy or VisualBoyAdvance), you are looking for fan-made projects that back-port Omega Ruby features into the Gen 3 engine. Pokémon Omega Ruby GBA
Expanded Pokédex: Often includes Pokémon from multiple generations (up to Gen 7 or 8) that were not in the original GBA games.
Reparto de Experiencia Moderno: Olvídate del "grindeo" pesado; el sistema de repartir experiencia suele estar actualizado al estilo de los juegos actuales.
Blocked Drains Chichester