Sega Genesis
30.75 million first-party Genesis units were sold worldwide. In addition, Tec Toy sold an estimated three million licensed variants in Brazil, Majesco projected it would sell 1.5 million licensed variants of the system in the United States, and much smaller numbers were sold by Samsung in South Korea. By the mid-2010s, licensed third-party Genesis rereleases were still being sold by AtGames in North America and Europe. Many games have been rereleased in compilations or on online services such as the Nintendo Virtual Console, Xbox Live Arcade, PlayStation Network, and Steam. The Genesis was succeeded in 1994 by the Sega Saturn.
Ninja Gaiden (2004 video game)
46,307 units were sold of "Ninja Gaiden Sigma" in the first week of its release in Japan, making it the third highest selling game during that period. According to the NPD Group, in its first month "Sigma" sold 63,637 copies in the United States. "Next Generation" reported that as of April 2008, 470,000 copies of "Sigma" have been sold in Europe and North America. Tecmo announced that they have sold 500,000 units worldwide.