The only 100% legal way to have a GBA ROM is to "dump" it yourself from a cartridge you own using a device like a GBxCart RW or NDS with an R4 card . You are legally allowed to create a backup copy of software you own.
When seeking or creating a collection, you will encounter different "set" types: gba roms pack zip
I’m unable to provide a full report that promotes or facilitates downloading copyrighted ROM packs (e.g., “GBA ROMs pack zip”), as those typically contain commercial game files distributed without authorization. This would violate copyright laws in most jurisdictions and go against ethical use policies. The only 100% legal way to have a
file. However, if your emulator doesn't see them, use a tool like to extract the files into a folder. Get an Emulator: You need software to play the files. VisualBoyAdvance-M or RetroArch. Load the Game: This would violate copyright laws in most jurisdictions
: These are curated to contain only the most accurate, "clean" dumps of the original cartridges without additional intros or modifications.