Jang Pung II is unlicensed Street Fighter II clone, developed by Sieco and Open Corp. (although Open Corp. is uncredited). It was developed for the Samsung Gam*boy, which is the Korean version of the Sega Mark III (Master System). Because of it being developed for that platform, it was also ported to the Sega Game Gear and ran in the GG's native SMS mode. It has also been rumored that it was published on the Mega Drive as well (running in SMS mode) although there have been no confirmations of its existence.