Al buscar "en español", la verificación asegura que estás jugando la traducción oficial de Nintendo España y no una traducción "fan-made" (a menos que busques específicamente un ROM Hack). El Catálogo de Pokémon en NDS (Versiones en Español)
It sounds like you're looking to build a for a platform or application that helps users find and download verified Spanish Pokémon NDS ROMs
: A popular Gen 5 mod that incorporates Gen 7 and Gen 8 elements, including regional forms and new moves. Trusted Communities for Spanish ROMs
The Quest for Verified Spanish ROMs: Revisiting Pokémon on Nintendo DS