Super Game Boy 2

source: wikipedia_enThe Super Game Boy is a peripheral that allows Game Boy cartridges to be played on a Super Nintendo Entertainment System console. Released on June 14, 1994 in Japan, on July 22, 1994 in North America, and on September 24, 1994 in Europe, it retailed for US$59.99 (equivalent to $130.31 in 2025) in the United States and £49.99 (equivalent to £105.48 in 2025) in the United Kingdom. In South Korea, it is called the Super Mini Comboy and was distributed by Hyundai Electronics. A revised model, the Super Game Boy 2, was released in Japan in January 1998.

source: romuゲームボーイソフトをスーパーファミコンで遊ぶための周辺機器用BIOSです。