Biox Co., Ltd. (バイオックス株式会社), previously known as Japan System House Co., Ltd. (日本システムハウス株式会社) and JSH (株式会社ジェイエスエッチ), was a Japanese video game developer founded in 1987 and active until the early 2000s. They provided outsorced development for other companies. Capcom used their services for the development of Mega Man II for the Game Boy. As the game was poorly received, Capcom never hired them again, instead having Minakuchi Engineering develop all the other Mega Man games for that system.