Janyou Part II

Janyou Part II is a classic Japanese arcade game released in July 1983 by the manufacturer Cosmo Denshi. It is an adult-themed or traditional Mahjong arcade game designed for 2 players.

The game itself is a re-release and variation of the classic "Royal Mahjong" originally developed by Nichibutsu. Like many Japanese Mahjong arcade cabinets of that era, its control panel featured a highly specialized layout rather than a standard joystick—typically utilizing up to 26 distinct buttons to let players select, discard, and make declarations (such as Pon, Chi, or Ron) with specific tiles.