SEGA has a long history of success and innovation in video games dating back to 1951. Over the decades, SEGA launched many game consoles including the SG-1000, Genesis, Saturn, and Dreamcast. In 2004, SEGA merged with Sammy forming SEGA SAMMY HOLDINGS. SEGA has since expanded their mobile gaming business, partnering with companies like NTT DoCoMo and GLU to develop and distribute mobile games globally on many platforms. Some of SEGA's most successful mobile games include titles in the Sonic, Monkey Ball, and Virtua Fighter franchises.