California Games II ROM Download for Sega Master System (Sega Master) on Emulator Games. Play California Games II game that is available in the United States of America (USA) version only on this website. California Games II 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 California Games, Wonder Boy III - The Dragon's Trap and World Games as shown below. California Games II works on all your devices in high quality.