Metroid - Zero Mission ROM Download for Gameboy Advance (GBA) on Emulator Games. Play Metroid - Zero Mission game that is available in the United States of America (USA) version only on this website. Metroid - Zero Mission is a Gameboy Advance emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Metroid - Fusion (FlashAdvance), Megaman Zero 4 and Barbie - Secret Agent - Royal Jewels Mission as shown below. Metroid - Zero Mission works on all your devices in high quality.