"Kazama Jun to Asama Yuko no AV Dragon Mahjong" is an adult puzzle game developed by Idea-Tek and published by Hacker International and Super Mega for the Nintendo Entertainment System (NES) in 1991. Also known as Mahjong Block, it combines mahjong elements with classic falling block gameplay, where players clear falling mahjong tiles to score points. Featuring 8-bit pixel nudity, it’s intended for adult players, and no Japanese language skills are required to play.