Janou Touryuumon
From Sega Retro
This is probably a port of Janou Touryuumon II as it shares the same boxart and released later. As the first wasn't released on Mega Drive they probably dropped the "II", but it's difficult to verify for non-Mahjong playing, non-Japanese speaking, non-DOS/V users ...Pirate Dragon (talk) 18:39, 5 November 2022 (EDT)