Shikinjoh

Shikinjoh or Shi Kin Joh or Shi-Kin-Joh or Shikinjou (or likewise) (紫禁城) is a 1989/1990 puzzle game by Scap Trust for the NEC PC-88 and NEC PC-98. Sunsoft ported it to the Sega Mega Drive and Sega Game Gear in 1991, with the Mega Drive version having added Sega Mega Modem capabilities. No version has left Japan. A version was later included with Sunsoft's Game no Tetsujin The Shanghai for the Sega Saturn.