Run the extracted ROM using a GBA emulator on your PC or mobile device.
roms-ps2-velhos-cartuchos directory listing - Internet Archive 54 (BR) (www.romsportugues.tk).gba.7z
The "(BR)" tag indicates this specific file is a Brazilian Portuguese translation (PT-BR). Distribution and Legacy Run the extracted ROM using a GBA emulator
Use a utility like 7-Zip or WinRAR to extract the .gba file from the archive. 54 (BR) (www.romsportugues.tk).gba.7z
The .7z extension is a high-compression format used to save space, and the .gba inside is the actual ROM image for use with emulators like VisualBoyAdvance or mGBA .