Shikinjou (時空城) is a Japanese role-playing game (JRPG) released for the Game Boy. Details about the specific gameplay, plot, and developer are scarce due to the game's limited release and lack of readily available English resources. Given its title and the prevalent style of JRPGs on Game Boy during that era, it's likely to feature turn-based combat, dungeon crawling, and a story driven narrative.  Further research into Japanese gaming archives would be needed to provide a more comprehensive introduction.

Shikinjou (Japan)

Shanghai Pocket (Japan)