this game mode would be all about 4 players maybe a possible total of up to 8 players (online)... all playing mk mini games together at the same time...
1. mk kart racing (1-4 players local, 1-8 players online)
2. coop / vs / endurance mode battles (1-4 players local, 1-8 players online)
would work and play just like mk: shaolin monks VS battles did, maybe with even more kontent this time around (players, weapons, levels, options, etc..)
3. test your might, sight, luck etc (1-4 players local, 1-8 players online) played just like their respective games, only this time around capable of more than one / two player/s at once
4. mk chess kombat (1-4 players local, 1-4 players online)
Regular MK Chess 1-2 players
Three-Handed MK Chess 1-3 players
Four-Handed MK Chess 1-4 players (can also play 2v2)
(
http://en.wikipedia.org/wiki/Four-handed_chess)
and maybe even more games that i've left out... think it would be a lot of fun to once again play some of these side games to take a break from the serious kombat side of things and would be a lot of fun for... you've guessed it, partys!!
ps. the mk party mode would be better off suited as either a bonus disc or as dlc, so as to not take away / waste any of the precious space on the actual mortal kombat game disc (which is of course the meat and potatoes)