MK3? Lots of new characters in there and new atmosphere. You'll be normally fighting in a occupied city, city subways, rooftops etc. There are also new..what do u call it..."Stage fatality" for each one of them. The musics are terrifying too.
MK is a game that is worth of playing. I know it isn't popular like other fighting games. Like in Tokyo, the most famous fighting arcade game is the King of Fighters series. The latest is KOF 2003.
I like the graphics, the brutality of the game, reliastic render and spooky atmosphere. Its all about saving the world from the Outworld Gods