Force 21 ROM Download for Gameboy Color (GBC) on Emulator Games. Play Force 21 game that is available in the United States of America (USA) version only on this website. Force 21 is a Gameboy Color emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as AirForce Delta, Bionic Commando - Elite Forces and Power Rangers - Time Force as shown below. Force 21 works on all your devices in high quality.