It seems you're in 
Poland.Redirect to Europe Site to see the content specific to your location and shop online.
If you legally own a physical copy of a game and wish to apply a Spanish fan-translation patch (version 7.0), here is the technical workflow. Note: This guide assumes you are creating a backup of your own cartridge.
Change language Settings for NDS ROMs with RetroArch and EmuDeck
It’s important to note:
Busca la opción (Iniciar juego directamente) y cámbiala a OFF .
La legalidad de descargar Roms puede variar dependiendo de la jurisdicción. En general, se considera una violación de los derechos de autor.
It seems you're in Poland.Redirect to Europe Site to see the content specific to your location and shop online.
If you legally own a physical copy of a game and wish to apply a Spanish fan-translation patch (version 7.0), here is the technical workflow. Note: This guide assumes you are creating a backup of your own cartridge.
Change language Settings for NDS ROMs with RetroArch and EmuDeck
It’s important to note:
Busca la opción (Iniciar juego directamente) y cámbiala a OFF .
La legalidad de descargar Roms puede variar dependiendo de la jurisdicción. En general, se considera una violación de los derechos de autor.