Jelly Boy ROM Download for Gameboy (GB) on Emulator Games. Play Jelly Boy game that is available in the United States of America (USA) version only on this website. Jelly Boy is a Gameboy emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Gameboy Camera, Gameboy Camera Gold - Zelda Edition and Gameboy Gallery as shown below. Jelly Boy works on all your devices in high quality.