Sega Genesis
Sega sold 30.75 million Genesis units worldwide. Of these, 3.58 million were sold in Japan, and sales in Europe and the U.S. are roughly estimated at 8 million and 18–18.5 million as of June 1997 (at which time Sega was no longer manufacturing the system) respectively. In 1998, Sega licensed the Genesis to Majesco Entertainment in North America so it could re-release the console. Majesco began reselling millions of formerly unsold cartridges at a budget price, together with 150,000 units of the second model of the Genesis. It released the Sega Genesis 3, projecting to sell 1.5 million units of the console by the end of 1998. An estimated 3 million Genesis units were sold by Tec Toy in Brazil.
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.