Like the Master System, the Sega Genesis can also fit up to two controllers. But unlike the Master System, this console also contains a volume control for headphones when inserted. The controller has the Control Pad on the left, a blue Start button on the upper right, and three trigger buttons labeled "A", "B" and "C". Sega logo's can be seen in the middle.
The Sega Genesis was released as the Mega Drive in Japan on October 29, 1988, in North America on August 14, 1989, in South Korea in August 1990 as the Samsung Super Gamboy, and on November 30, 1990 in Europe. More than 30 million units were sold worldwide. New video games for the Super NES were released until 1997, along with the Sega Game Gear's.
An add-on called the Sega CD was released on December 12, 1991 in Japan and on October 15, 1992 in North America. This allows you to play CD-based games on the Sega Genesis. It was so expensive that it only sold just more than 2 million units worldwide. The most notable game released for this console was Amy Rose's first appearance, Sonic the Hedgehog CD (1993). This add-on was discontinued in 1996.
Nintendo vs. Sega
The Sega Genesis competed against Nintendo's own 16-bit system, the Super Nintendo Entertainment System, ever since it was introduced on November 21, 1990 in Japan and on August 13, 1991 in North America.