Pro Mahjong Tsuwamono is a Super Nintendo Entertainment System mahjong game released in Japan. As a part of the "Pro Mahjong" series, it's safe to assume the core gameplay revolved around standard mahjong rules and competitive matches.  The game's features likely included different game modes, perhaps varying difficulty levels, and possibly customization options for the game's presentation. While the exact gameplay details are not readily available, it's clear that it aimed to provide a traditional mahjong experience on the SNES console.  The developer and publisher behind the game requires further investigation.

Pro Mahjong Tsuwamono (Japan)

Pro Mahjong Kiwame II (Japan) (Rev A)