Sparrow Sim Mahjong D64

Jangou Simulation Mahjong-do 64 is a single-player mahjong simulation game on Nintendo 64 where players create original characters and compete as mahjong豪 (豪) in different mahjong lounges with varying rules and rates. Gameplay involves standard four-player mahjong mechanics using 13 tiles per hand, including discarding tiles via Z-trigger and one-handed control with the 3D stick. There are unique AI opponents with distinct algorithms and playing styles, and the game features original customizable characters along with a story mode. It stands out for its memory-based AI that learns players' playing styles over repeated games and its unique emphasis on gambling with visible money movement, which is uncommon in mahjong titles.