Earthworm Jim ROM Download for Sega Master System (Sega Master) on Emulator Games. Play Earthworm Jim game that is available in the United States of America (USA) version only on this website. Earthworm Jim is a Sega Master System emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Earthworm Jim 2, Earthworm Jim 3D and Earthworm Jim 2 as shown below. Earthworm Jim works on all your devices in high quality.