Gowin was a publisher and developer of Game Boy and Game Boy Color games. Its earlier mono Game Boy games were developed by a team connected to Gamtec & Vast Fame, while its later Game Boy Color games were developed by Sintax in mainland China. They seem to have made games around 1997 - 2007.
Most of their mono games will only run on mono systems like the original Game Boy, due to the boot logo change.
List of mono Game Boy games:
Binary Monsters Binary Monsters II - Adventures of Hell
Magic Ball Prince YehRude
Story of Lasama
List of Game Boy Color games: Amazing Robot
Binary Monsters III (Also known as 'School Fighter')
Lei Nu Ji Shen