So your probably looking through the list of Shanghai games and wondering what's the difference with this Dreamcast Entry. And, what might make it one of the best. Success is a great company and thanks to being able to use the Activision Shanghai License they made a great game.
The main mode at the top is the classic shanghai gameplay. However, this time around the remaining modes are all multiplayer, Not just 1 v 1 as we have seen on some previous entries. Tournament, Dynasty, Pandemonium all offer a different way to play the game. Pandemonium in particular is a 4 player 144 tile battle on the same screen.
At this current time I have not added these modes to the leaderboard outside of the Classic, so there's an opportunity to set a record (or even beat that one). They even through in Mahjong which I have joked about on many occasions because still, I don't know how to really play it, I don't see that changing any time soon.
Other then that, rules, theme, icons, and my own run has been added to the board. Please DM me if you get a run of one of the modes and I will promptly add it if the mode is played to completion.