Karate Champ ROM Download for Nintendo (NES) on Emulator Games. Play Karate Champ game that is available in the United States of America (USA) version only on this website. Karate Champ is a Nintendo emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Karate Kid, The, Urban Champion (JU) and Karateka as shown below. Karate Champ works on all your devices in high quality.